text:
How to disable captive portal detection? How to remove exclamation mark on Wi-Fi or signal icon in Lollipop?
When connected to the Internet, the system checks if it's in a walled garden, which is simply trying to connect to Google. If it fails, in Android 5, there'll be an exclamation mark on the WiFi icon or signal icon.
In some situations, this is annoying. Say, in China, Google is blocked, the exclamation mark will always be there, which is meaningless.
How can I disable this check, and make the system assume, connected WiFi/mobile data is connected Internet?

See also https://android.stackexchange.com/questions/110789/very-frequent-wifi-disconnection-while-being-in-china

See also https://android.stackexchange.com/questions/176993/how-to-force-android-6-to-automatically-connect-to-a-network-without-internet-ac

See also https://android.stackexchange.com/questions/66964/connect-to-wifi-network-even-if-it-doesnt-have-internet-access

See also https://android.stackexchange.com/questions/220414/how-can-i-automatically-re-connect-to-a-wifi-network

See also https://android.stackexchange.com/questions/186993/captive-portal-parameters

See also https://stackoverflow.com/questions/37218510/android-6-0-1-force-wifi-connection-with-no-internet-access

It's simple. In the terminal (requires root), or in adb shell (does not require root), issue the command
settings put global captive_portal_detection_enabled 0

and reboot. It should be disabled.  The existing state can also be verified via the command
settings get global captive_portal_detection_enabled

A response of "null" indicates the global key value has not been set and Android will fall back to default of being on and performing the detection. If the detection is disabled the response of "0" will be received.
More info: Android : How to remove “captive portal” detection on android 4.2.2 and 4.3
It also works in 5.

Great! I note that the link describes doing this in 4.2.2 and 4.3. Have you (or anybody else) verified that this also works in 5.0.x?

@SimonW yes, it works. That's why I tagged the question lollipop. I'm using CyanogenMod 12 though.

Comment by Gery, lacking the rep for it: For the ones who use terminal for the first time, don't forget to put the command "su" before you do anything, to allow superuser permissions. (It took a while for me to figure why am getting "permission denied") After that it worked like a charm.

Starting from Nougat (I guess, might be 7.1.2 only, or already Marshmallow), use settings put global captive_portal_mode 0 instead, see https://jira.lineageos.org/browse/REGRESSION-620

In order to write this setting, you might (Android >= 8?) have to set SELinux to permissive first: su; setenforce 0; setting put ....

Does this work with Android 10? I don't want to risk bricking my device

In the Android M Developer Preview for Shamu (Nexus 6), and possibly other builds of this OS, the captive_portal_server global is used by the OS regardless of the state of captive_portal_detection_enabled in order to determine health of a WiFi network.
For WiFi networks, it will not only draw an exclamation mark on the strength icon, it will blacklist that SSID from auto-reconnecting if it does not successfully curl the URL specified in the the captive_portal_server global via that SSID. Manual reconnection is allowed but will only remain connected if you have captive_portal_detection_enabled and choose "Use This Network As-Is" manually, each time you connect to that WiFi SSID. This override is temporary.
For mobile provider networks, the captive_portal_server is only used to draw an exclamation mark on the strength icon but will remain connected, and traffic will flow if the connection is functional.
On your rooted device, the solution is to re-enable captive_portal_detection_enabled if you have disabled it, connect to that WiFi network, select "Use This Network As-Is" from the drop down menu in the captive portal pop-up, disable your mobile network data to focus on determining a website that can be retrieved via your Wifi network by logging in to your captive portal and then use a browser to find one that works. After that, you can disable captive_portal_detection_enabled to prevent the annoying pop-up.
To reenable your captive_portal_detection, if you previously disabled it, issue the command:
settings put global captive_portal_detection_enabled 1

Disable your Mobile Network (under Settings - Data Usage - Mobile Data - Off), to force the phone to use the WiFi network for all traffic, temporarily. This will not be required once you have all of your settings where they need to be.
Android M seems to require a website that loads successfully and does not actively return a 204 (no content).
A couple of options include but are not limited to
androidcheck.kiritostudio.com
captive.apple.com
www.textise.net
the network router
localhost
127.0.0.1 (if you have an onboard simple HTTP server)
and the list goes on...

After finding one that works for your WiFi Network (often requires more imagination and attempts behind corporate web gateway proxies that do not like HTTPS traffic prior to authentication), you can save the server.
Save the server by running this in your root enabled terminal app, replacing the example URL with the one you are hoping will work:
settings put global captive_portal_server androidcheck.kiritostudio.com

Restart your device. Try it out. Once you are happy with the behavior of the Exclamation Marks on the icons, the final step is to disable the captive portal pop-up, which is one of the most unfortunate inventions of this decade.
Issue command:
settings put global captive_portal_detection_enabled 0

If you find yourself in a different country or WiFi situation where issues arise, unfortunately you will need to repeat the above from the beginning, reenabling captive_portal_detection_enabled, restarting, finding the right server and then disabling the portal detection afterwards.

Did you mean HTTP 204 (no content) or HTTP 404 (not found)? Currently I changed to "no content" based on another answer

This solved the "connected, no internet" problem on Nougat. Running fresh-flashed CM14.1 (7.1.2) on Nexus.

You can setup your captive portal server address to it.
settings put global captive_portal_server g.cn

Then, restart your phone.
PS: Before that, you can validate the server is available.
http://g.cn/generate_204

authors: ภัทร เหลืองวรชาติกุล


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Gmail app duplicate notifications - one for Inbox and again for Custom Label
I am getting 2 notifications for the same email, both from the Gmail app. One notification is for the Inbox and the other is for a custom Label.
I do not want two notifications for the same email, so how do I prevent an Inbox notification if a label notification is triggered?
If I disable the Inbox notification, I will not be notified when a new email arrives. If I disable the Label notification, I will not hear the sound that is set to that label.
A couple more things to note...
- Some suggest moving the label emails away from the Inbox will solve it, which is true, but I need the label emails to show in my Inbox because I need to action them.
- I have the Inbox sound notification disabled because it clashes with the label notification sound (separate issue, but same cause).
Using Gmail v5.0.1 on Galaxy Note 4. Thanks.

Yeah, this is a major annoyance and renders the label notification feature essentially useless unless you label ALL your mail. We simply need an option that prevents two notifications for the same email.

Gmail > Settings > select account with labels > Manage Labels > Select each label and uncheck "label notifications" that way the only notification you get is when it gets to the inbox, not a double notification for inbox AND the label

The way I fixed this was to check the box for "Skip the Inbox (Archive it)" when I made the filter and label with the custom sound. That way the message is only in one place and therefore only one sound is played.
Hope this helps. =)

Open the Gmail App
Go to the settings for the account tied to Inbox
Uncheck Notification

If this solution does not work for what you want to accomplish, there really isn't anything I, or anyone, can tell you to do. Inbox and Gmail are 2 apps for the same service. They are not meant to be used at the same time for the same account. In fact, when you first start up Inbox, it tells you to go in to Gmail and disable the notification.

Thank you for taking the time to respond. I don't use the Inbox app. I was referring to the inbox of the Gmail app. Sorry for the confusion. Any ideas on what I can do now this is clarified?

I used to have the same problem. One day I got a prompt from inbox asking me if I want to disable duplicate notifications. When I said yes, the notifications from the Gmail app stopped coming. Now it is only from inbox that notifies me. Don't know how to trigger that.

Go to inbox>settings> choose your account>there is a setting that tells you to stop getting notifications from Gmail.
Also if you use it for a while it will make a prompt with the same question.

You can go to gmail - Settings- again - your account- then go to inbox sound & vibrate - in check Label notification.
Sunil

source: Stack Exchange

license: Creative Commons - Attribution Share-Alike - https://creativecommons.org/licenses/by-sa/3.0/

sort: votes


text:
battery drain AFTER kitkat update
On Samsung S5 AFTER installing KitKat last week, the mm-qcamera deamon usage has drain down full battery in 7hours (before update 12+ hours uptime was the average.
Hopefully an urgent fix is coming. So far the key argument for me for Android was the lack or quick fix of bugs...

I can't seem to find a question here. Can you elaborate or edit?

Lack of a question mark doesn't change the obvious: Rapid battery drain is not a positive thing, so how can it be fixed?

@MatthewRead Fair Enough. I'll find something.

There is a bug report that has been filed to AOSP about this with a FutureRelease status (a bug fix will be coming soon). Read it here.

It seems that a reboot provides a temporary fix for the problem.
  A factory reset fixed the issue permanently for most users.

all_licenses: Creative Commons - Attribution Share-Alike - https://creativecommons.org/licenses/by-sa/3.0/


text:
which sensor is capable of tracking the emr
I read about applications like tawkon and too close recently. I am aware that they keep a watch to the mobile's radiation level and do something when the radiation level mounts. I am impressed with those apps. I wanna learn about how they work and I wish to code a simple app that keeps track of my phone's radiation level.
I thought that the TYPE_MAGNETIC_FIELD sensor would be able to find the radiation emission. When I browsed, I came to know that it is a sensor to measure the ambient geomagnetic field i.e; the magnetic field immediately surrounding the device.
I suspect that the radiations emitted out of the mobile phone must be largely responsible for the surrounding magnetic field. If what I think is right, I hope that I must be proceeding with the TYPE_MAGNETIC_FIELD sensor.
Please let me know, if I am right. If not, please guide me to the correct sensor that can achieve my own tawkon kinda.

I'm afraid that's not well fit here. "Which sensor" is rather an Android independent hardware question, and programming is another off-topic at this site – which deals with end-user questions toward Android.

The second app you linked seems to just use the proximity sensor.  The first one, I would guess, simply uses signal strength as an inversely-proportional metric (since your phone will need to amplify its own signal and thus "radiation" to reach a cell tower that is further away).

@MatthewRead: If that is the way 'tawkon' is programmed, will it not shout at us whenever we get complete signal strength?


text:
Installing Jelly bean 4.3 on Micro digit tablet
I just bought this China made tablet(Micro digit M7502). Jelly bean 4.2.2 is installed on it. But I want to upgrade it in to 4.3. Do any one know here? I think this is the right place to ask. Thank you.

Pointers: When will my device get the Android 4.3 update (Jelly Bean)? / How do I update Android on my device? / Where can I find stock or custom ROMs for my Android device?

Unfortunately, the manufacturer has not provided any OTA updates for your device.
Any chance of getting Android 4.3 would be by rooting it and installing a custom ROM.
After some searching, I found that there are no custom ROMs for your device. So you can proceed by submitting a request to the developers at XDA to build one specifically for your device. Remember that flashing a ROM not meant for your device can result in bricking.


text:
Can't boot my android after changing permissions
I recently rooted my android (Nexus 4).
I wanted to make /system folder permissions 777, I needed that for another application. I got Root Explorer application, and changed permissions to 777. Then root folder disappeared and hanged up.
I tried to restart my phone, but now it doesn't even boot up. What should I do? ... Please, don't tell me I bricked my phone.. It was just permissions, nothing more... I have no idea how to recover now.
When I do adb shell, I also get mesaage:
/system/bin/sh: /system/etc/mkshrc[9]: getprop: can't execute: Permission denied

Also I can't go to root mode (adb root) in console, from $ to #.. so it means.. I even can't change permissions anymore?

777 is a potentially dangerous setting. It's like removing the front door to your house. I don't know the Nexus 4, but you should be able to recover by re-flashing your ROM (be it stock or custom) from your computer, using whatever software is appropriate for the Nexus 4 and your computer's OS. (And please tell me you backed up your data before rooting).

Yes, I backed up everything. So no worries about that. I just worry, that I could lose this phone by itself.. I will try flashing. Just found package for my nexus.

Could it be you've told root explorer to apply the permission recursively? If so, the easiest way by far is to flash the ROM again. Everything else will be like re-collecting the feathers of a pillow ripped-open during storm.

I hoped you made a backup:-)
Try to reflash the ROM on your phone in the recovery mode and restore your backup.
And NEVER use 777 because now anyone can access your /system.

Yes. I have backup. I am now flashing my phone. Do you know what alternative could be that I can RWX files in /system? This is for Boot Animation app, it downloads custom boot loading screens, but it can't put them in /system/media/ to replace stock loading screen.

@KristapsJaremčuks Do you have a superuser app installed? If so, the boot animation app should request superuser privileges. If you grant it, the app will be able to place the animation in /system/media. If it doesn't request su privileges, it's poorly written, and you should use another one.

Yes, I had SuperSU. I was also prompted and set it to Granted. Same with other applications which require rooted phone, but problems just with this one.

@KristapsJaremčuks There's always the option to manually put the bootanimation.zip file in /system/media. That's what I do, and I've never had any troubles with it. The permissions should be 644 (rw-r--r--), and owner:group should be set to root:root (0:0).

Yes, thats what I thought, to put it manually. But it didn't allow me, it says Read-Only. So I was looking for solution how to change RWX..

@KristapsJaremčuks I get the problem. Your /system is mounted ro. This is enforced regardless of permissions, and not even root can write to it. The file manager I use automagically remounts rw as necessary and back to ro when done. I use Solid Explorer, and I think ES File Explorer can do this as well. Another option is Root Toolbox to remount rw from there.

Thank you! I successfully flashed my nexus. Now I am back to business, and also Boot Animations work (now I can manually put files in /system/media/)!

@KristapsJaremčuks That's good news. Enjoy your new fancy boot animation, but don't reboot every ten minutes just to see it. ;)

There is no other way to preview animation. :( Preview option kinda doesn't work, drops some ads, and thats it. But I found animation that I will probably stick with.


text:
What does "Ignore messages like this" do? How do I see what I've ignored?
When I tap and hold on a notification in the notifications list, I get an option to "Ignore messages like this." I can't find any explanation, though, of what this means. Does it really mean, ignore all notifications from this app? Or does it mean, only ignore messages like this one from this app? (i.e. can one app have multiple "channels" or types of notifications?)
And the other side of this - where can I see what messages I have chosen to ignore, and possibly undo it, if I once again want certain messages?
UPDATE: In CM settings there's a "Notification Filter" screen that lists all notifications that I've chosen to ignore. (Settings > Privacy > Filter Notifications in CM11.) I still don't know what the filter does, though - it hasn't seemed to keep me from seeing any notifications.
(I suspect that this feature only blocks you from seeing notifications whose source and content exactly matches a past notification, but I can't confirm that so I don't want to post it as an answer. Can anyone confirm or deny?)

After some testing, this feature seems to hide future notifications when the same app shows a notification with exactly the same text again in the future. This means you can't filter messages like [filename] download completed from the download manager, [app name] installed from the app store, or Level up! You are now level [number] from Google Play Games, since they have changing content.
As such, its usefulness seems pretty limited. There's no good way to choose which notifications you get from most apps, unless the app has those options built-in.

I believe this is simply the standard Android feature for turning off notifications.  It's on a per-app basis, rather than analyzing what kind of notification it is or its contents (etc.).
This answer provides the details of how to turn them off or back on:

Under each application info screen there is now a checkbox for "show notifications" (assuming the app sends notifications). Uncheck that and no more notifications from that app.
You can get to the screen by going to Settings | Apps | {application} or, more conveniently, long-pressing the notification itself and then tapping "App Info".

In cm12 if you go to "settings > notification manager > filter notifications" you can see which ones you blocked

@saloalv is right, except on CM11 it's under settings > privacy > filter notifications. It appears to be a list of all the specific notifications that I've chosen "Ignore messages like this" on. Those apps do NOT have "Show notifications" disabled, and they still show notifications. I still can't guess what it's supposed to be doing though.

@Josh preventing from showing same notification? "download completed"?

@saloalv, I'm afraid that's true, except that almost no app shows the "same notification" twice. Downloads, for example, say "[filename] download completed," so they're different every time. You can't filter them unless for some reason you need to download exactly the same file regularly :)


text:
How do I prevent Google Search from spawning instances?
I love using the white Google search bar at the top of my home screen, but I only recently discovered that it spawns a new instance for every search I do. My phone was slowing down, and I suddenly noticed I had dozens of past searches in my app switcher. I went through and closed them all, and now my phone is happy again.
Can I have all searches share one instance? Or do I have to clean them up periodically myself? :(

From my own experience of Lollipop, it's Google's new concept to show you everything you're doing as a separate activity. Unless you go down the route of rooting and applying some mod (I don't know of one which does this), the only solution I see is to get into the habit of always closing them as soon as you open them. (Easier said than done, I can say for sure).


text:
How to delete a message from WhatsApp Group Chat
I'm a member of one group of our college friends in WhatsApp. There is one specific message that I want to remove. I know if I try to delete it, it will only be deleted from my phone, but I want to know is there any way that I can permanently delete it. I don't want anybody in the group to see that message.

The only way to delete a message before it reaches the recipient is to delete it before it reaches the server.

Turn off the data connection and delete the message while it still has the clock icon beside it.

If the message is submitted to server, people in group will be able to see the message.

license: Creative Commons - Attribution Share-Alike - https://creativecommons.org/licenses/by-sa/4.0/


text:
Phone call speakerphone/earpiece equalizer
Is there an application or tweak that will allow me to equalize Phone call audio coming out of the speaker/earpiece?
Similar to how AudioFX equalizes for media audio?


text:
View which apps have accessed location data recently
I've heard that Android 5.0 (Lollipop) provides a way that users can view which apps have recently accessed location data.  I'd like to list all apps that have collected my location information recently, so I can keep an eye on them.  How do you do that?  Where in the user interface is this available?  What screen is this information on?  Is this available on any version before Lollipop?
(Alas, I don't have a phone with Lollipop handy to test it myself, or I'd look for it myself.)

Ah-hah: looks to be answered here: http://android.stackexchange.com/a/75112/7401


text:
recent songs are showing up in files but not on music apps
Recently when I download new songs onto my droid RAZR maxx they appear in my files in the music folder along with all of my other songs, but don't show in the music app. I have checked all over the internet to figure out what's wrong but have seen nothing. I cleared cache, I checked to make sure there weren't any weird symbols in the title, I refreshed music app, I uninstalled and reinstalled music app, I tried a different music app. Again the file can be played through file manager using the music app but when I look through the music app itself its not there, I have tried looking to see of it might be under a different name as well. I use the Google play music app.

can you mention the path where you have stored the songs?

I have the exact same problem, but I can't figure out how to fix it. I've solved the problem before by clearing all my music data (files and everything), and just replacing them, but that is a painful prospect, and really should only be used as a final resort.


text:
Is there a way to lock the Netflix profile in a rooted Galaxy Tab 3 Lite (SM-T110)?
I would like to lock account switching in Netflix. I found that you can do this with a restricted profile but this version of android doesn't have that feature. I can create new accounts with a terminal, but this does not enable the "Users" option in the settings menu.
Is there another way to lock the account switching, or is this impossible?
Android version: 4.2.2

authors: Роман Григорьев


text:
Android app installation displays error message -insufficient storage- though still 10 GB free space
I use an acer liquid z 4 and a 16 GB SD card as main storage. While trying to install a small cheat sheet for emacs, I got the error message "Error while downloading. There is insufficient space on the device". However under Settings SD card still has 10 GB of free space.

There are a number of memory areas and Android tries to download the new apps in a particular one.
One good option is to clean out the logs: press phone and select keypad, punch *#9900#. A new menu appears. press the second one down "Delete dumpstate/logcat". And you are good to go download a few more apps.


text:
Swiftkey - How to handle Auto Capitalization with URL and Email Strings
I like a lot about Swiftkey. But after a few years of using it, some of the annoyances haven't been fixed and I haven't "eventually got used to" the nuances of it like I thought I might.
This one has me stumped.
Enabling auto-capitalization means typing out a web address, or email (or anything with a period in it for that matter), adds spaces and capitalizations throughout the string. Trying to get it to type out correctly, while the fragmented string is also changed to auto-corrected words is unimaginably infuriating.
So I gave up and turned off auto capitalizations, lowering myself to texting like an imbecile, all in lower case (because who's got time to hit the shift key - am I right?).
Enter a second bug.
Swiftkey, when I can be bothered manually capitalizing a word at the beginning of a sentence, seems to think I want that text saved to the custom dictionary. So, for example, the text: Swiftkey drives me crazy. Absolutely throw my phone against the wall crazy. Will result in the word Absolutely being saved to the dictionary. Next time I go to use absolutely in a sentence it comes in capitalized as Absolutely.
Enter a third bug.
Swiftkey has a neat feature where you can long press on a predicted word, and elect it not to be predicted again. Great, if it worked. Long pressing Absolutely and selecting this, removes the word from the custom dictionary, completely, including the original, correct word. Next time you go to type absolutely and type accidentally type abbsolutely or some other fumble, it is not corrected to absolutely because that word is gone. Instead something else is dropped in. absolute for example, or worse perhaps, your mistake goes in abbsolutely.
Ideally I'd rather use auto caps. And have some way to enter strings with periods better. But with it off there is an unacceptable series of bugs that I think need to be fixed.
Am I doing something wrong?

The email thing is really annoying and it's shocking that it still hasn't been fixed.

For typing a web address if you start typing with www (case matters here) and then hit period, the auto-capitalization does not work and you can normally type your URL. For other queries I think posting them at SwiftKey's Support page for Android would give you better responses.

OK that's good to know. Thanks for the response. What about typing email addresses?

@square_eyes: Regarding email addresses I don't have any idea.


text:
Swype quick emoji input list
Does anyone know where to find the list of the available intuitive emoji input keywords? I have looked unsuccessfully.
It will be useful as a reference.
Many thanks.

My gf and I have compiled a list of what we have found so far, and are still discovering more.
☺ happy
 wondering
 smile
 sad / cry
 concerned / worried
 OMG
 tongue / raspberry
 grin
 wink
 asleep
 sleepy
 scared
 fear
 cool
 emo
 stubborn
☝ up / one
 bad / no / thumbs down
 good / yes / thumbs up
 clap
 hello / wave
 hear / ear
smell / nose
 mouth
 eyes / see
 massage
 guy / boy
 girl
 couple
 angel
 skull
 ghost
 liberty
 yay
 swim
 run
 kiss
✈ plane
 train
 car
 bus
 bike
⛵ boat
 trolley
 walk / hike
 man
 woman
 baby
 smoke
 bird
 dog
 cat
 fish
 whale
 panda
 rabbit / bunny
 monkey
 chicken
 pig
 horse
 sheep
 cow
 tiger
❤ heart
 love
✔ check mark
 trail / footprints
 knife
 gun / shoot
☎ phone
✂ scissors / cut
 box
 money
 atm / cash
 date
⏰ alarm
 shower
 music
 guitar
 saxophone
 violin
 beer
 drink / martini
 wine
 hamburger / cheeseburger
☕ coffee
 ice cream
 pizza
 donut
 tomato
 bread
 chocolate
 candy
 banana
☕ coffee
☕ tea
 sushi
 night
 sun
☔ rain
☁ cloud
❄ snow / cold
 fire / hot
 shoe
 shirt
 jam
 couple

You are amazing my friend :D

I will add to this when I come across them myself.

Few more I found:
 mad  pout  snake  helicopter  atm / cash
⚾ baseball  football  basketball ⛳ golf ⚽ soccer  tennis  goat  hair  turtle  king / queen / crown  star  crocodile  picture / camera  mouse  lollipop  cake  ski  snowboard  surf  punch  bathroom ⛪ church  toilet  ok  purse  heel / sandal  diamond  ambulance  truck  movie / theater  taxi  beach / palm  tree  koala ⛄ snowman  earth / world  rainbow  penguin  octopus  snail  rat  whale  tv  bowling  pool  bath  battery  key  flashlight  hammer  wrench / tool  trolley  atm / cash  chips
 poodle  umbrella  rose  gift drug  dragon  sushi  Halloween  alien  frown  surf ♿ wheelchair  pill  piano  Santa ✋ hand ✌ peace  cookie  game  radio  glasses  smirk


text:
2-step authentication calling me in Thai. I don't speak Thai.
I setup google 2-step authentication through Google Apps.
I linked my Skype number by Voice instead of SMS.  SMS wasn't going through.  It's a US number.
I'm trying to login on my Android phone in Thailand.  I bought the phone in Thailand with a Thai sim.  I set the Android language to English.
2-step is calling me and giving the number in Thai.  I don't speak Thai.
There's no obvious setting to change the language of "Google sign-in" app on the phone.
I looked in the Domain Admin app and didn't see a setting to change the language.  It's pretty frustrating.
Any suggestions?
Thanks!

I looked on Wikipedia to translate just the numbers out of the call.  Not so hard.

Did you took a copy of Backup Codes which are provided while enabling 2-Step Verification? They can help you to login if you've them.
Otherwise, try resetting your password. That's the only option left. And, from the next time install the Google Authenticator App from PlayStore as it creates code by itself and comes very handy. No reliance on SMS/Call.

https://play.google.com/store/apps/details?id=com.google.android.apps.authenticator2&hl=en


text:
Does increasing cache size of memory translate to higher I/O speeds?
Hello Android Enthusiasts!
I recently came across this app SD Booster on the Play Store that claims to increase I/O speeds. On installing it, it showed me that the default cache size for my device is 128KB and the optimal size is 512KB.
My question is, will increasing the cache size to 512KB actually increase I/O speeds? Also, can changing the system defaults cause any adverse effects?
Any help is appreciated.

See Wikipedia: Disk buffer. And of course, accessing RAM is faster than accessing storage.

Thanks for replying. I have read the wiki page. Still not sure if I should increase it.

You'll always want to weight that against the size of available RAM, of course, plus the expected benefit. If you've got at least 1 GB RAM, I'd try it with 512 kB and see if you can really feel a difference. You don't need that for "cosmetical reasons" (i.e. just for some benchmark to show "more points").

I've got 1GB RAM on my device. I'll try and find if there is any difference with 512KB. Thanks again for the advice.

Anytime. You also can play a little with the sizes: if you e.g. see a benefit with 512 k, try again with 768 k (does it get even better?) and 384 k (is that sufficient already?) to figure the optimal value for you. And don't forget to keep us updated, once you figured :) Also remember: it's perfectly fine to answer your own question here ;)

I did some research on the topic and came up with the following chart. It seems that increasing the cache size does NOT always translate to higher I/O speeds.
Test Device: Samsung Galaxy S-III i9300, 1.7GHz, 1GB RAM, CM 11 Custom Modded
Test Operation: 100MB Archive Read, Paste 100MB file to SD Card, Launch Time: Stack Exchange
The chart displaying the results of the test is as follows.

As seen in the chart, all the three test parameters were on their best with the stock (default) cache size of 128KB. Higher sizes gave equally good performance in reading speeds, but failed to perform in write and launch operations.
Conclusion: The default cache size has been already optimised for maximum performance and need not be changed by the user for day-to-day functions.

Just remember that test conclusions will be predicated on hardware specs. I found on one of my devices that setting it to 1024KB made it snappier, Gallery app would respond way faster, but on my other devices - that setting is just wrong. Also a given test will have varying results, depending on what else is opened/running in the background (services, tasks, other apps, networking, and etc.), so perform several tests under varying conditions (or at least your normal operations) to acquire the best setting. Let us know what type of results you get after testing again.

@HasH_BrowN Sure, I'll edit my answer after testing with a variety of Android devices. Thanks for the suggestion.

Please provide a link to the chart you came up with, for others and also further reading. Thanks for the response. +1 for a good answer


text:
How to flash Mts Blaze 5?
I would like to flash my Android Phone because it appears to be corrupted;  whenever I switch on my phone it gets stuck on the MTS logo (splash) screen.
I have recently downloaded a 'flash tool,' but it is not detecting my phone.
Please Help.

Personally I'd send it back if it's new. Can you see it when you plug it into the computer. Ensure you remove Sim/SD card if you've put those in before you reboot it and also plug it in when you do.

its searching for some drivers and after that driver not found.

Have you taken the sim and the SD card out?

yes i taken our both sim+ sd_card

I'd send it back then, assuming you've not modified it since you had it? What did ZTE say, if anything?

ZTE says the there is not software available for this phone

Try http://www.mtsindia.in/blaze5.0/ (I meant MTS not ZTE) drivers there. Did you modify the phone?

but i don't know the procedure of how to re-install new android Operating System in Mobile Phone.


text:
Contacts in circles are invisible in Phone
I have a Moto G ver1 running Android 4.4.4
After the last update I noticed that any contact that is also added to  G+ circles is NOT searchable on the phone. If I search by phone number the contacts appear. If I search by name they do not. This problem affects only contacts that are added in circles. Does anybody have a solution? Thanks!
[update]
I just noticed that the problem with those contacts is the contact's name (on my phone) being different than the name of the google+ profile. If I search the profile name the contacts display correctly.


text:
android lollipop with moto g (2nd gen)
I have updated my Moto G (2nd Gen) to the new version of Android (5.0.2), after which I am facing hang and slowness issues.
How can I revert this back to my old version of Android?
Thanks in advance.

I've just added the downgrade tag to your question. While waiting for answers showing up, please check out other questions using that tag, your answer might already be there.

Yes you can. But you have do it all yourself. Get the factory image of Kitkat for your device & flash it. You can find detailed step by step guide on the internet on various sites.

I also encountered with the same problem. But still don't know how to deal with it.

Not sure if this applies as it's been a while since this question was asked but thought I'd answer it it since I had a similar experience now.
I also have a Motorola G2 and it was having slowness issue just last week, and I saw on android pit website they suggest you go in to the developer options and speed up the animation which can cause slowness if it's set to default that is 1 second, I changed it to .5 seconds and it really makes a big difference, and now everything works much faster.
And there's another suggestion there as well for clearing the cache. I'm posting a link here: https://www.androidpit.com/how-to-speed-up-the-moto-g-2014-for-better-performance


text:
SMS Delay (Samsung Galaxy S5 KLTE - SMG900F)
I currently have a Samsung Galaxy S5 (SMG900F). The phone is rooted and I'm using a Team UB 5.0.2 Custom ROM.
I've noticed over the past couple of weeks that I've began to experience a considerable delay when receiving text (SMS) messages.
If I long-press on the message and check the timestamps it occasionally shows up as "Sent: 20:41, Received: 03:20." An important aside would be to mention that this only appears to happen at night. If I send myself some sample texts from another phone; they are received almost instantly.
Has anyone else experienced similar issues and found a viable solution?
 I'd also like to know if this is related to the ROM/Build, SIM Card, or whether it's purely down to the service provider (Virgin Media in this case).

I don't see what the device could have to do with that, nor how this might be Android related. The most likely cause indeed is your service provider, so I first would check with them (or other customers of the same, whether they have the same issues).

@Izzy Thanks for the reply. I was under the same kind of impression. It's just that I don't currently know enough about the build process etc. of custom ROMs and whether or not that could have some kind of effect on the "radio" ability. I'll give them a call later. Thanks for insight.

Though there theoretically could be delays caused by software (delayed sending on one end, or delay receiving), that's pretty unlikely – and especially unlikely to cause a gap that large. Coverage however could be one thing, or you having switched to airplane mode (if you turned reception of, it's clear you cannot receive ;) If you can rule out these two, and the gap is that large still, it must be something "on the way". Eliminate all other factors, and the one which remains must be the truth. (Sherlock Holmes, "The Sign of the Four")


text:
Android 5.0 sync questions on HTC M8
I'm trying to figure out how to set items to individually auto sync.
On the HTC M8 under accounts & sync in both 4.4 and 5.0, I noticed I cannot select items to auto-sync individually. I can only manually sync individual items when I have auto-sync turned off. If I turn on auto-sync, it automatically wants to sync everything under those accounts and Google account which is what I do not want.
I only want certain things under these specific accounts to auto-sync. For instance, all I use is Gmail and Google Play Music. I do not want anything else on my phone to sync to Google, but I can't figure this out since it doesn't ask what I want synced before adding an account.
I know in older versions of android, it always asked what I wanted to have auto-synced and what I didn't when adding the account. I could also go in that account under settings and select what I wanted to auto-sync before turning on the phones sync.
How can I get around everything trying to sync at first, if I cannot even choose what I want to sync when adding a Google account?
I've even tried sighing into these separately instead of adding the main Google account through accounts & sync. It still does the exact same thing and it adds everything from my Google account ready to be synced as soon as I turn on the phones auto-sync.

If you go to accounts & synch, and click on your google account it should have the breakdown (I tried it on an M8 just now, fine) Chrome, Music, Gmail etc etc etc. What happens if you clcik on the Google Account itself (and not the little synch icon beside it)?

Enable "Sync" in the taskbar, then go to the account you need selective sync on, you'll find all the required options with tickboxes. Tickboxes disappears when "Sync" option is disabled.
Best luck.


text:
How to show Math formulas on a website?
I am reading (in Chrome or Firefox) Math blogs, like the n-Category Café, but finding it difficult because Android will not show the Mathematical symbols (like integral signs, sums, arrows... etc).
Is there something I can do to fix that?

The website uses MathJax to show math formulas, and it's using JavaScript.

I just tried opening "n-category cafe" using Chrome in my Nexus 5, and it works normally.
So it's probably just a problem with your browser settings.
Check if you are allowing sites to run Javascript by going to Settings -> Site Settings -> Javascipt in your Chrome browser.

authors: شادي الحارثي


text:
insufficient space?
I have an android next book tablet. I have a 16 GB SD card in it. Why is it still telling me I have insufficient space? How can I make things download straight to the SD card and not the internal storage?

Prior to Android 4.4 (KitKat), apps that are too large for internal storage could automatically load themselves into external storage, as long as the app supports loading into external storage (not all do!). That doesn't mean you would never run out of internal storage, though. It's quite possible, between apps, caches, and stored data that you could not have enough space even to download the APK. You have to manage this yourself by moving apps to external storage.
KitKat changes a significant portion of this by making the SD card essentially read-only, assuming your device has enough internal storage to do what you need. Most devices come with some sort of file manager that will allow you to move photos, videos, and other files off to the SD card, but most apps cannot do that themselves. Instead, a directory within internal storage is used by default. More importantly, as user GiantTree notes in a comment, even apps no longer get moved to the external card.
Adding an SD card doesn't magically expand memory. It's a separate storage area that you usually have to manage, especially with KitKat and probably Lollipop.

As a side note: beginning with Android 4.4 you can't move apps to your external SD card anymore. The SD card you are moving them to is your internal SD or simply your device storage that seems to be independent of the internal/application storage.

Didn't even think of that. Updated the answer. Thank you!


text:
Galaxy S5 Active home button - weird long press behavior
I've got an S5 Active on AT&T. After the latest update, my home button started registering almost any press as a "long press." Does anyone have an idea of how to fix or mitigate this problem? Also, if anyone else has experienced the same thing, please let me know as I'd like to think I'm not crazy!

The good news: you're not losing your mind.  The even-better news: there seems to be a solution.
Head on over to ifixit and take a look at their thread.

Whilst this may theoretically answer the question, it would be preferable to include the essential parts of the answer here, and provide the link for reference.

The solution I've found while waiting for an update to fix the update is to turn off auto updates if it's on, and uninstall all updates to the Google application, restoring that app to factory. Hoping there's a better fix soon so I can turn auto updates back on.


text:
How is it Google Maps works without data?
I ran out of data for this month so disabled it. Google maps still works in map view when I'm following my route. How is this possible? Is it that GPS can still work without wifi/data and as long as Google Maps has the map it just moves the indicator along?

GPS is mainly independent from mobile data (except for satellite info). How would navigation systems on your car work without mobile data? It is exactly as you described: Google Maps caches the map and the indicator moves along your GPS position.

The GPS sensor itself is a separate entity. It can report your current position with driver software. Google Maps doesn't need a data connection for that.
So where is the map data coming from? Apps cache data. If you've been through the area already, or if the map data has been downloaded, Google Maps will do its best with the map data it has. It won't be able to update you on traffic conditions, as those have to be grabbed in real time, nor will it work for an area for which you don't have cached map data.


text:
turn on nearby friend in android
Facebook told me that I must follow these steps to enable Nearby friend:
To turn Nearby Friends on or off on an iPhone or Android:
Tap More
Tap Nearby Friends
Tap Setting
Tap to turn Nearby Friends on or off

I'm using Facebook latest on Android with Samsung Core Prime and I can not do those steps cause of I dont see Nearby Friend on the screen,
Please help me for enable it!
Many thanks!
I can not screenshot the phone, but I swear I can not see the the "nearby firends" button at all.
samsung told me do these steps, but it's totally no help!

To capture a screenshot, press and hold the Home Home key and the
  Power/Lock key simultaneously until a white border flashes around the
  edges of the screen. The screenshot will be copied to the clipboard
  and saved to the Screenshots folder in the Gallery.

Those are the correct instructions.  However, Nearby Friends was launched last April as a gradual roll-out.  As far as I can tell, it's still not generally available to everyone.  I do not have the option myself.

You are probably right. I've got the latest version and I cannot see the Nearby Friends option.


text:
Phone is overheating in less than 10 minutes of usage
I have Lava Iris 405+ running on Jelly Bean. It overheats in less than 10 minutes of Twitter, WhatsApp use. Even tethering overheats CPU.
How to prevent/fix this, or identify which causes the overheat?

Are you sure it's the CPU? Check if background apps are launching malicious services in the background eating a lot of CPU, what makes it run at max clock rate all the time.

If it's literally overheating, take a look at the battery as well.

First of all, find out what is causing the heating issues, the CPU or the battery.
Download CPU-Z from the Play Store and open it up.
In the first tab, ie SOC, check the clock speeds of each core and compare them with your stock clock speed (1.3GHz) and check CPU Load.
If the cores constantly run at 1.3GHz, then as GiantTree said, you have got some background apps that are causing the heating. Go over to Settings -> Apps -> Running to find the apps.
If not, check the Temperature in the Battery tab. Anything above 40 C is harmful. This could be caused by a faulty battery. Try replacing it.
Either way, use during charging is not recommended.


text:
Clockworkmod recovery, unable to backup the /data partition
My device is a rooted Samsung Galaxy S4 mini (serranoltexx) with CWM 6.0.4.6 recovery.
When I try to take a nandroid backup of my device it gives me the this error:

error while making backup of /data!

Flashing a ROM works fine, is this a permission issue?

Is /data successfully mounted when you enter recovery? Check if you can access /data in another way (e.g. adb). If you can then the backup script is broken.

Well, my recovery supports neither adb or console line. I forgot to mention that it is a CWM-based Recovery. TWRP doensn't officially support my device and my device was shipped to me with this recovery installed.

AFAIK cwm should support adb (at least it did on my phone). Is there any real log file that gives the error a bit more clear then just there was an error ?


text:
Nexus 7 stucks at Google logo
I had Nexus 7 2013 Mobile with Android 4.4.2 running. I tried to update it to recent release 5.0.2 from factory image. When I run command "flash-all.sh", it did not continue at "rebooting to bootloader...". I had to manually stop the process and it still can boot into 4.4.2. After that I tried flashing it manually by running fastboot commands. It then stucked at 'sending system'. I again had to manually stop it. That erase the OS and can boot only into bootloader. I once again tried the luck and run the "flash-all.sh" and it stucked again at the same "rebooting to bootloader..." stage and after manually stopped it, it will not let me boot into anything except Google logo. I can't switch off it, it auto reboot and stop at Google logo. ADB can't detect the device.

Are you able to use key combinations to get into Recovery or Fastboot mode?

Key combination did not work too.

I have the same problem… but the tablet was in 5.0x since a long time (I've do anything just apply when it's was available). I was reading on twitter when the nexus made a black screen and a reboot with a white google logo (very nice on hdpi device)…


text:
Can I change the *maximum* brightness from a system file/apk?
My old Asus TF101 has a faulty backlight and cuts out if it goes above (roughly) 60%. Therefore, I am hunting for a way to change (lower) the maximum brightness that the tablet will reach - both in auto brightness and by using the brightness slider.
Following this XDA thread http://forum.xda-developers.com/galaxy-s2/themes-apps/mod-lower-auto-brightness-levels-to-t1235212 I've discovered where to change the auto brightness (the framework-res.apk) but wondered if anyone knew where the other brightness settings were stored?
Obviously I'm rooted and fully prepared to decompile system apks!
Cheers.

Found the answer myself and it's a 'yes'. I'll share it here in case it's useful to someone else.
This XDA thread was the basis of the fix http://forum.xda-developers.com/galaxy-s2/themes-apps/mod-lower-auto-brightness-levels-to-t1235212 main points extracted here:

Here is a guide on how to perform this mod on any framework-res.apk using apk manager (thanks for the guide goes to desean):

Download APK manager and unpack somewhere
Grab framework-res.apk from your phone under \system\framework\ (e.g. adb pull) and place it in the "place-apk-here-for-modding" folder
Run Script.bat and select option 9
Once done, go to projects\framework-res.apk\res\values\arrays.xml and edit your values as per first post.
Once edited, compile the apk using option 11
Qn: Is this a system apk. Ans: y
Qn: Aside from the signatures, would .... least. Ans: y
Prompt: In the apk manager folder u'll find a keep folder..... done then press enter on this script. Press any key to continue . . . You have to go to "keep" folder and delete resources.arsc because arrays.xml have been changed. After this You can press any key in apk manager window.
Once done, input 22 in apk manager and select "unsignedframework-res.apk" by entering the number that stands for it. After selecting it You should see in apk main window in the top right corner "Current-App: unsignedframework-res.apk". Now press 5 to zipalign apk. You will find your completed, zipaligned apk under place-apk-here-for-modding\unsignedframework-res.apk. Rename it back to framework-res.apk and adb push the file back to your phone

Some of those points are inaccurate (particularly points 6 and 9), depending on the version of APK Manager you use, (if you use it at all, APK Multitool has replaced it in development and I used GanGs_KiD Kitchen) but are corrected later in the thread.
Anyway, instead of editing arrays.xml (which is where auto-brightness is controlled, though I edited that too) head to integers.xml and edit the values of "config_screenBrightnessSettingMaximum" down to whatever you need. 255 is the brightest (and what it's likely already set to), I needed to go down to 150.
Then follow the instructions to re-compile and zip-align your framework-res and adb push it back to the device. Hey presto! No more screen cutting out!


text:
How to pipe output of dd to a computer via adb shell?
I've accidentally wiped my phone and lost all my photos. I'm going to try to run photorec on an image of my phone.
What I'd like to do is somehow something along these lines:
adb shell
dd if=/data of=/file/on/my/computer/not/on/phone

Is there any way to do this? I'm using a linux PC.
I saw this related question (Create a dd image of a Android 4.4.4 for forensics?) but it writes to the same device - my device is a nexus 6 so I don't have an sd card to write to (and doing so would likely over write the data I'm trying to recover)

This is not the answer you are going to want to see but read the question and comments on Recover files of an App.

This functionality has not been implemented in ADB yet.  However, there are workarounds that some users have come up with.  Check out this thread on XDA Developers for more information on how you can work around this limitation.

in recovery and like this
root@kali:~/Downloads# adb shell
~ # parted /dev/block/mmcblk0
GNU Parted 1.8.8.1.179-aef3
Using /dev/block/mmcblk0
Welcome to GNU Parted! Type 'help' to view a list of commands.
(parted) print all
print all
Model: MMC 016GE2 (sd/mmc)
Disk /dev/block/mmcblk0: 15.8GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt

Number  Start   End     Size    File system  Name      Flags
 1      4194kB  18.9MB  14.7MB               apnhlos
 2      18.9MB  71.0MB  52.2MB               modem
 3      71.0MB  71.6MB  524kB                sbl1
 4      71.6MB  71.6MB  32.8kB               dbi
 5      71.6MB  71.6MB  32.8kB               ddr
 6      71.6MB  73.7MB  2097kB               aboot
 7      73.7MB  74.3MB  524kB                rpm
 8      74.3MB  74.8MB  524kB                tz
 9      74.8MB  75.8MB  1049kB               pad
10      75.8MB  86.3MB  10.5MB               param
11      86.3MB  101MB   14.7MB  ext4         efs
12      101MB   104MB   3146kB               modemst1
13      104MB   107MB   3146kB               modemst2
14      107MB   118MB   10.5MB               boot
15      118MB   128MB   10.5MB               recovery
16      128MB   139MB   10.5MB               fota
17      139MB   146MB   7331kB               backup
18      146MB   149MB   3146kB               fsg
19      149MB   149MB   1024B                fsc
20      149MB   149MB   8192B                ssd
21      149MB   158MB   8389kB  ext4         persist
22      158MB   167MB   9437kB  ext4         persdata
23      167MB   2579MB  2412MB  ext4         system
24      2579MB  2893MB  315MB   ext4         cache
25      2893MB  2914MB  21.0MB  ext4         hidden
26      2914MB  15.8GB  12.8GB  ext4         userdata

(parted) q
q
~ # exit
root@kali:~/Downloads# adb pull /dev/block/mmcblk0p26 data.img
^Z
[1]+  Stopped                 adb pull /dev/block/mmcblk0p26 data.img
root@kali:~/Downloads# ls -al data.img && file data.img
-rw-r--r-- 1 root root 111017984 Aug  5 01:03 data.img
data.img: Linux rev 1.0 ext4 filesystem data, UUID=57f8f4bc-abf4-655f-bf67-946fc0f9f25b (extents) (large files)
root@kali:~/Downloads#

note i interrupted the process, at game time don't do that!
your block layout may vary but this is the general approach

Where did you get the parted from? It's not present in CM12 at least.

Firelord hi again, thanks for the editing, i am such a slob ! xD
okay while in recovery and via adb after mounting system and then remounting system rw, cp /sbin/parted /system/bin/ and chmod 755
on reboot just run parted without any arguments to make sure it's perms are correct
The parted source is in twrp source and Philz/cwm source btw

My TWRP doesn't seem to have parted binary. May be I'll have to build it from the source then.

Firelord, nah here is my AFH folder for tools 'n stuff
https://www.androidfilehost.com/?w=files&flid=23810


text:
How do I access an attached thumb drive?
I've attached an external drive to my phone using a USB-OTG cable. I can open it in File Manager (v2.0.0), but when I go to /storage/usbdisk none of my files show up, and if I try to create a file it complains about needing elevated permissions. I've read online that I need to enable root access mode in File Manager's general settings, but there is no such setting on my device.

It turns out you have to enable "Superuser" mode in CM's settings app if it's disabled. I was only able to get to this setting by searching for it - I couldn't find it anywhere in the menu tree. Android normally restricts apps to only access their own special sub-folders on an attached flash drive, so File Manager needs special permissions to access everything.

I own a OnePlus One and, after plugging the USB Drive through OTG cable, use the ES File Explorer app which will save you from the hassle of permissions. In that app look under the Local tab to find your drive, usually called sdb. No need for root.


text:
How to post more than one Whatsapp message separated by a line in a group chat
I have always seen people chatting in whatsapp groups and posting more than one message at different times separated by a horizontal line. This usually occurs when no one posts a message in between. I am using HTC Wildfire s a510e

It is not actually a feature. When you post two messages in a row, initially it is shown as two different messages. When the chats are refreshed, the two messages are grouped and shown in one bubble separated by a horizontal line to everyone else.

I have never seen it happen on my messages when I post two messages without being interrupted

okay I get it sir

Do you need any other help/info on the topic?

What you are asking about is not actually a feature. When you post two messages in a row, initially it is shown as two different messages especially if no one posts in between them. When the chats are refreshed, the two messages are grouped and shown in one bubble separated by a horizontal line to everyone else.


text:
how to retrieve data stored in android apps
I am using Moto G. downloaded a video through android app.I am able to play video through app. Where to tracethis video in phone memory and get this video for using in other devices

It would help if you mention the name of the app and whether or not it caches its data.

Find name of your app it will be like com.awesome.me
After you know name of application
Go to android/data/com.awesome.me/
This directory will be in your internal storage
U might see a lot of files and folders with different extensions
If its a video start looking for files with size of around 10 mb or more when you find it try to open with video player
After you find ur video
Change extension to video extensions
Copy it to your folder of choice
And enjoy
Sorry i am weak in English
N try x-plore file manager
Its  easy to use
Note:this is not advertising its just a suggestion/opinion


text:
What do you mean by kernel
I have many times come across this word. I even know a little about it but don't know exactly what it is.

Visit the wiki pages of Kernel and Android for information.
In simple terms, the kernel is a key component of operating systems, which mediates between software and the hardware. When an application needs the hardware to do something (this is known as a system call), it sends a request to the kernel, which in turn interprets the command for the hardware.

Both the hardware and the software communicate both ways with the kernel.
In the context of Android, the kernel is not user-accessible without superuser permissions. Thus, many users flash a custom kernel, to tweak hardware settings such as CPU clock speed and File System Architectures.
For further reading, look here and here.


text:
How can I have my device charge only when battery is below a given percentage?
So I've mounted my Nexus 7 onto a wall and use it as a sort of info screen / home automatisation device. Now this would require the screen to be on all the time which is why I want it to be connected to a charging cable 24/7.
Is there a way I can make the device start charging when the battery level falls below 10%? I don't want it to be charging all the time as this would wear off the battery pretty quickly.
I don't have root access.

No, It is not possible on unrooted devices and yes, it can be done on rooted devices.
In a rooted device,
Add a permission to Android : android.permission.WRITE_SECURE_SETTINGS.
Then, system call the set function of the BATTERY_STATUS_CHARGING
from the BatteryManager with a 0 value.
To automate this function, use a third-party application like Tasker to set a trigger on Battery % < 10 to do the forementioned system call.

Hey. My phone is rooted however I'm kind of a noob and I have no clue of where to input those command lines. Help?


text:
Lollipop update on MotoG causing no service for sim card
I was using Moto G(1st gen) phone for the past 1 year. I was using 2 sims and I didnt face any problem for 1 year. After getting lollipop update, I frequently get 'no service' for one of my sim. Initially I used to reboot the phone and it used to work. But nowadays, the issue is coming up frequently and doesnt always work with rebooting.
Any fixes, suggestions?

I Suggest you to make use of XDADevelopers forum regarding these kinds of handset issues ... You may Visit here !

Intermittent problems are typically an issue with hardware more than software in situations like this... I would suggest removing both SIMs, factory reset (wipe all data) and bring the phone up and set it up, then insert one SIM at a time and power cycle in between. If the problem recurs, try to get the troublesome SIM replaced, if it still continues it sounds like your device is in need or repair/replacement.

I have a phone with the same symptoms, this worked for me, but the problem still reoccurs so I'm trying to find a better answer.
http://www.thecellguide.com/moto-g-noservice.php
In brief:

Go into Settings -> Storage; tap Cached Data and select Ok to clear data
Go into Settings -> More -> Cellular Networks -> Preferred network type

Select "2G"

Turn the phone off, wait 10 seconds and then turn it back on.
Go into Settings -> More -> Cellular Networks -> Preferred network type

Select "3G"

Select Network Operators -> Search Networks
Select the correct carrier and you should be all set.

I'm not sure if that article was written with the LTE version in mind, so I follow the instructions and then switch the preferred network type to LTE.


text:
Google Calendar sync works only when Google Calendar app is uninstalled
I couldn't get Google Calendar to sync on my Galaxy S3 (with web version of Google Calendar). I did all things recommended on this help page but it didn't help. I also tried removing Google account from the phone and adding it again.
However, during one of the reinstalls (as recommended in Google help page) I suddenly got a notification about an event in my calendar that was created in the web version.
The sync worked perfectly fine when the Google Calendar App was removed from my phone. When "Google Calendar App" was uninstalled the pre-installed "S Planner" showed me the notification because the sync kicked in.
I rechecked it both ways from Android app to the web version and vice versa.
I prefer Google Calendar app to "S Planner" but this issue renders Google Calendar app unusable.
I also sent feedback message from the app.
Edit to add: it worked fine until one of the updates of Google Calendar.
Update: user RossC suggested to disable S Planner and test sync, but unfortunately I can't disable it (see screenshot).
Disabling related applications (with words calendar, samsung and sync in the title) did not help.

full screenshot

Have you disabled SPlanner and tried it? Works fine here on an S3, S4 and S5 no bothers, once synch calendar is enabled in Accounts & Synch settings under your Google account.

@RossC Unfortunately, S Planner cannot be turned off without rooting, but app called "Samsung Calendar SyncAdapter" can be turned off. I will try that later, as I have to go right now. It's weird that everything else but the calendar (Contacts, e-mail) works fine.

You can't uninstall it, but you CAN disable it. I've tried it on 3 samsung devices. Go to the app info and hit 'Disable'. It SHOULD work fine for you. I can only go on the devices I have here. That said, Samsung do some weird stuff with their bloatware so I wouldn't be surprised at all if you can't.

I can't disable it. The button "Turn off" is disabled. I added a screenshot in the post. PS Disabling related applications didn't help.

This moves us back to Google calendar, but did you clear the cache? Select Calendar Storage. (If you don't see 'Calendar Storage,' press < Menu > again, then select Filter > All. On some devices, you won't see 'Calendar Storage.') Select Clear data. Answer OK when prompted.

@LivedWithOtters This advice is on the Google help page that I linked. I've gone through all these several times. I wouldn't have posted this if I didn't try all things suggested on the official manual.

@AndreyRybak sorry. The link came up as a walk-though of steps and I was too lazy to jump through each hoop to see if it was on your list. I'd been able to use the cache clear in the past to sort out odd google calendar issues.  In terms of diagnosing the problem, what happens when you throw a third calendar app into the mix? I'm thinking it might help us chase down if the problem is the google app or sPlanner.  Worst case, you might be able to find another calendar app (better than SP) that does work if GC won't.

You could try and root your phone and download an app such as App Master from the app store to uninstall SPlanner altogether, as this would remove all of the Samsung calendar syncing issues you are having (hopefully - don't quote me but this worked for a friend of mine when he was having issues with his calendar syncing).  Hope this is of some help :)

authors: الامبراطو الحسني


text:
How to find installed apps which are using SMS feature
I have a Samsung Galaxy Note 3 Neo (Android KitKat). Some of the apps are using my SMS feature and SMS are costing pennies from my pocket without my knowledge.
I want to know what are all the apps which are sending SMS. If I found list of Apps, is this possible to restrict them from not using SMS feature without uninstalling them.

Go to Settings -> Apps -> Downloaded. Here you'll see a list of all the apps that you have downloaded from the internet.
If you open any one and scroll down to the bottom, you'll see all the permissions that the app has. An app that sends messages on its own would have the send SMS messages permission enabled, which looks like this.

If you see this in an app, you have found the potential culprit.

Alternatively, you can download a third-party application like App Permission Watcher, to watch which app has the send SMS messages permission enabled.

Unfortunately, if you are not rooted, the only way you can stop the app from sending SMS messages is by uninstalling it.
However, if you are rooted, then you can edit the permissions of each app using your superuser controller.

Settings -- > General --> Application Manager for list of installed Apps.

@sunleo Thanks for pointing it out. I'm using CyanogenMod, so the settings are a little different from Touchwiz.

To find all apps with a specific permission, there's a much easier way then checking them each manually: use a Permission Checker. I'd recommend taking a look at aSpotCat, which is around for quite a while (I remember it even back from Eclair in 2011 :)
  []
aSpotCat allows you to browse your installed apps by permissions (and more, see first screenshot). Especially for your question is the second screenshot: see what apps can send SMS messages. To make it easier for you to find a permission, they are grouped (third screenshot).

Now, restricting access is a different thing. Multiple approaches can be thought of, but they are often either specific to an Android version (e.g. AppOps are only available with Android 4.3 and 4.4), require root, or need to manipulate and re-install the apps (thus often preventing updates, as modifications also change the app signature). As you're using Kitkat, the first group should fit your needs, and you can check for some AppOps FrontEnds. If your device is rooted, you might also take a look at some Stand-Alone Permission Manager. For further details on those, please also visit our sister-site for Software-Recommendations, and see: Android permissions manager.
Enjoy!


text:
Is it possible to edit android apps from Google play
If I want to customize the way an app looks is there a way to do so ?
I am thinking in the lines of obtaining source code and editing.

If the developer publishes their source code, sure.  The Play Store is not an open source repository.

Unless an app is open-source (freeware), doing so is illegal and is an infringement to the End User License Agreement.
However, if you talking about open-source apps, you can request the developers to send you a copy of the source code for any changes/editing. You can find the contact details of the developers in the Play Store page of the app.

But how would I know if the app is open source?

There is almost always a mention that the app is open-source in the description. Note that an app can be free and be closed-source.

authors: عبدالعزيز ال صادق


text:
How does this dialer work?
When I press certain numbers on the dialer of my phone, names are brought up which don't make any sense. I've used T9 dialer, but I can't understand this. For example le, typing 77 brings up names starting with Ap, and Dr. Typing 34 brings up names starting with He, and Ad. I just wanted to know if there's any reason for this.
The OS is Jelly Bean 4.1.1
EDIT: As some of the answers point out that it may be a part of a number of one of the contacts. I've checked it before, it only happens after I type three numbers. And if it is a part of a number, that string is highlighted.
But when I type just two numbers, the names come up with their first two letters highlighted.

Isn't it possible those are just number sequences found in the telephone number of the listed people? The list refines as the numbers are input.

The dialer will look for things that match the T9 query as well as search your contacts that have the string of numbers associated with their phone number.
For example if you have contact John Smith with phone number 123-456-7890 and you dialed "78" he would show up because that string matches part of his phone number. If you dialed dialed "56" he would also show up because that matches his name "Jo" as well as part of his phone number "56".
I hope that helps!


text:
My battery dies very quickly
I've had this issue a couple of months ago too but then I could fix it by turning off an option at my WiFi settings.
Now the problem is back but it my previous solution doesn't work.
I own a Samsung Galaxy S5 and I've had it for about a year now. It runs on Android 4.4.2. At some point the battery started to die really fast, and I don't have a clue what the reason could be. When I check the battery usage, it says "Android-System" uses about 30-40% of my battery, but I don't have a clue where this service comes from or how to kill it.
Has anybody got a solution for this?

Sounds like you could use a factory reset. This will reload your operating system. After you do that I would load applications one by one and see if any of your apps are causing the battery drain.
Here is a guide on how to factory reset your phone:
http://www.digitaltrends.com/mobile/factory-reset-galaxy-s5/


text:
Nexus 5 camera brick/reboot bug
I've had a nexus 5 for a while now, and one issue I've had is that after taking a bunch of photos, it will either freeze and need rebooting, or lightly soft brick wherein I need to plug it in in order to get it to turn on, no matter how much charge it had or has. No battery drain, but no key combination nor holding the power button for any amount of time turns it on, but it turns on fine when I plug it in for a moment. I have no clue when it started, and there is no specific number of photos, length between photos, or amount of time that the camera needs to be accessed that seems to cause it, but it only happens when I'm taking a photo or video, and after a couple or more have been taken. I've tried reflashing the entire phone, and it happens on both 4.4.x and 5.0.x. Is this a hardware issue or something else? Anyone with any ideas, no matter how far out, please tell them to me as I'm at my wits end right now. Thanks in advance for any info.

I see you did a firmware reflash but did you do a clean reinstall/factory restore of either OS?

@LivedWithOtters at this point a clean flash of the entire emmc really isn't that possible, however with multirom and a clean install of carbon rom I still have the problem.

Let's see if we can chase it down another way... Same problem with other camera apps (like snapseed or afterlight or whatever)?

anything that accesses the camera

Oh sure, take away the easy route ;-).  Let's work backwards from the symptoms... 1. when it freezes, is it in the camera app itself? what happens when it freezes like this and you don't do a reboot, but instead plug it in? 2. when it baby-bricks and you plug it back it, how does it behave? does the screen flash? does it vibrate? does it start up at the camera app? does it reboot from scratch?

When it freezes, the screen goes black and it acts like it's off, however the back starts to heat up after about 15 minutes by just a bit, and it can't be turned on. When it freezes holding the power button or anything does nothing, and the only way to bring it back sometimes is plugging it in. When I plug it in, it acts like it was off and goes to the black and white battery charging screen, with about the same amount of battery as before, nothing funny. I can just turn it on from there normally as though nothing happened. It didn't do that all the time, and most of the time now it only

turns off, though it will usually boot loop a couple times and require a force reboot, and doesn't just give up (loading screen displays until battery dies, phone gets kind of warm)

None of these times is it just the kind of crash where it just does a hot reboot

Is it possible something about what I'm doing is causing buffer overflows or something when it tries to write to emmc?

Hardware: Long shot, but do you have an alternate battery to try? Also, if it's not on already, can you turn the volume on for the camera shutter and see if it still makes shutter sounds after the screen goes black? In other words, I'm wondering if the OS is locking up or if the screen is. Software: thinking on it...

It's definitely the entire phone that locks up as the power button and volume keys do nothing, and none of the kernel gestures I have set up even vibrate the screen

Any chance it might be any governor or I/O or something? I've always set it to ROW for the I/O and elememtalx is the one I've been using for the governor recently.

Have you been using any of the dev tools to take a look as this happens? Even something like show CPU usage or process stats?

No I haven't. I'll try

Flashed a new radio and I'm testing it now...so far about thirty photos with no crashes


text:
S-Off Evo 4G LTE
So I have an HTC Evo 4G LTE that I'm working on, and I upgraded Hboot to version 2.10. That probably wasn't quite as brilliant of an idea as I thought, being as now I can't seem to gain S-Off. I know how to get S-Off on Hboot version 2.09, but when I ran the RUU which included that, it gave me the error "ERROR [140]: BOOTLOADER VERSION ERROR," so I figure it doesn't want to downgrade anything. Can I get back to Hboot 2.09, or gain S-Off some other way?

Here's my research, although it hasn't helped me as of yet.
http://forums.androidcentral.com/htc-evo-4g-lte-rooting-rom-s-hacks/254028-guide-how-return-stock-phone-you-think-you-bricked.html
http://forum.xda-developers.com/showthread.php?t=1964371
http://forums.androidcentral.com/htc-evo-3d-rooting-roms-hacks/266778-help-unable-flash-ruu.html

Can't you use ADB to install Hboot 2.09

With S-On but the bootloader unlocked, I believe you can flash an official stock Firmware (and downgrade)
Then Soff again.
After getting S-OFf, ungrade Hboot only with a hacked version.
Then flash roms via TWRP only.

Alright, but when I go through the HTCDev method again, it still says 'relocked.'


text:
Galaxy Y is restarting again and again after factory reset.
I formatted my phone due to "low space in memory", after I click on factory data reset and now my phone is restarting over and over.
I waited for 5 minutes but it was not turning on then I removed my battery and I restart it but it was showing samsung's logo only.
I also tried to enter into recovery mode for factory reset by pressing volume down+power button, but same thing happened restarting again & again showing only Samsung logo

A hard rest on that device is: Hold and press the Volume up, Home, and Power buttons simultaneously for 10-15 seconds.
There is a set of visual instructions here: http://visihow.com/Reset_a_Samsung_galaxy_young_gt-s5360_using_two_different_methods if you want to get a sense of what that will entail.


text:
switching Google accounts (apps(all free), etc)
I got my first smartphone, a Nexus 4, last year. I've been using two different Google accounts for e-mail etc, and I want to switch everything to one. I signed up for all my apps, etc on my nexus 4 using the Google account I want to get rid of. How do I switch over to just using my other gmail account on google play?

Sign into both accounts on your phone or tablet, download whatever apps you want from each account, then delete the old account, maybe they've blocked this since, but I've had this same problem, paid for apps, then got rid of the account and can't transfer the payment, so I signed into that account, downloaded the app, and then deleted the account, all is good...If I've misunderstood what you're asking I apologize, just let me know and I'll delete this and go away lol

I just went through this with google and their answer is "you can't".  I knocked on several of their help chat doors (including the play store) and - sadly - got the same line there.


text:
Frequent "Google sign-in" error
On my Android device, I have added three Google accounts, and probably on average of once (or even twice) per week, all three accounts will have "Google sign-in" errors to show me. Unlike the question about the persistent sign-in errors, once I enter the correct password, the authentication succeeds, and the error vanishes, only to appear a week later.
I am not doing anything to change any of these accounts, but I am just using them normally on other PCs and devices. None of my other Android devices seem to have this problem. I am not using two-factor authentication.
Error dialog text:

[English] Google sign-in: You entered the wrong password or your
account has changed. Please re-enter your password.

What might I be doing to cause these errors and more importantly, how do I prevent these errors?

I'm wondering if it's a cache problem since it's only on that device and not seemingly tied to the accounts themselves (since the problem is not elsewhere). Have you tried deleting the accounts from the device and then re-installing them? This can be a PIA if you have things like movies downloaded because - in my experience - it forgets where they are on the device and wants a re-download.

One of the accounts is the "base" Google account I've linked with my phone, meaning that the device would require a factory reset if I removed it. I would hope to find a way to clear the cache without a factory reset.

I've not had a problem removing all of the google accounts from a phone (no reset required), but of course YMMV.


text:
"Call not sent" when trying to call someone on Moto G running Android Lollipop
I have a Moto G upgraded to Android Lollipop from Android 4.4.4 KitKat. I can send SMS and receive calls. But, whenever I dial a number or try to call someone, I get this message:

Call not sent

What can I do?

Allright, after getting the phone back I got the issue again today. I turned the phone OFF and ON, then signal came back normally and I was able to phone.

What worked for me was a suggestion on GSM Arena that you should turn off the phone, take sim out, turn phone on, put sim. After that you can make calls. I had this on HTC One M7 (custom Lollipop ROM).

Under "Mobile network settings", I switched "Preferred network type" from 3G to 2G, and rebooted the phone. I was then able to make calls again.
Then I switched back to 3G and rebooted, and it still works.
Odd...

This worked for me.

Similar to what Talltony said, I had to go to
Settings -> Wireless & networks -> More -> Cellular networks -> Preferred network type
and select 3G as there was nothing selected after the update.

Go to settings - > Select your network and reboot. Hope this will work!

Can you be more specific about where you do this within Settings?

all_licenses: Creative Commons - Attribution Share-Alike - https://creativecommons.org/licenses/by-sa/4.0/


text:
Bridge Wi-Fi through router > Galaxy S3 > desktop Windows
I'm usually hooked up to a wall Ethernet port on my PC, but I'm away for a little over a week now and I only have access to Wi-Fi. The signal is just barely out of range. I can use Skype and whatnot with my poor connection, but can't browse the web.
I set up a mobile hotspot on my S3 and have a speed of roughly 5 Mbps (download), so that's wonderful, but I figure I'll run out of data quickly (I've already used 40 MB in the past minute) -- I'm unable to connect to Wi-Fi while my phone is a hotspot, so I don't believe I can continue using the hotspot without running out of data if it's going solely off of my data plan.
My phone has a better wireless card than my desktop, and can browse the web, etc perfectly -- since my phone has such a good connection, I figure I can bridge the connection from it to my PC and not have to use up my data plan. While researching why I couldn't use Wi-Fi and the hotspot at the same time, it turned out that since my phone only had one Wi-Fi antenna it couldn't handle both of them at the same time. I'm not sure if bridging the connection from my phone to my computer would require more than one -- maybe it will, maybe it won't. Is this possible?
Windows 7
Non - rooted Galaxy S3
Android Version 4.4.2

Simple solution, connect your phone to your computer via a good quality usb data cable.
Disable your computers wifi, connect your phone to your wifi.
Go to settings on your phone and enable 'Usb-tethering" (it will be in the same place as wifi tethering was. Wait a couple of seconds for your computer to recognise it, and you're done


text:
How to Export Client Certificate from Firefox for Android on non-rooted device
I had a website install a client certificate into my Firefox browser (v35.0.1) on my tablet and I want to export and backup the certificate. I've found out after the fact that Firefox on android doesn't actually provide any native mechanisms for managing the certificate store (and does not integrate with the Android native certificate store). Additionally, all Firefox add-ons I've found are out of date, preventing them from being installed.
I found an article here that suggests copying the cert9.db and key4.db files to PC and using a third-party application to extract the certificate and key, however this device is not rooted and the file browsers I've tried do not allow browsing the true root filesystem. As a workaround, I tried putting the path to the files in Firefox to download them to somewhere more accessible, however Firefox refuses to download them (though of note: it does see the files.
Is there any other way to access the certificate store in Firefox for Android or retrieve the cert/key db files from which I can extract the certificate?

Have you tried Firefox's sync facility? I'm not certain if it does sync certificates - worth investigating though. If it does work, you sync with a desktop version and manage/backup certificates from there.

I haven't tried that yet, as I don't have access to my desktop right now (though will in a while). I also don't know if the Firefox sync will include the cert db, but I'm somewhat doubtful that it will. I'll have access to my desktop in a couple of hours and will try there when I can.

@garethTheRed - sorry, didn't tag you in my reply.

I still received it though.  This plugin installed on my Android Firefox - may be worth a try. I can't confirm whether it worked or not as it simply told me that I had no certificates installed (which is true!).

I sync'd between a desktop (which has a cert) and a mobile (which doesn't have a cert) and Firefox sync doesn't seem to copy certificates - ah well, it was just a thought...

@garethTheRed This plugin allows me to view the detailed of and delete certificates, but doesn't let me actually export them unfortunately. And Firefox sync does not include the browser certificate store, though does seem to be wanted according to https://bugzilla.mozilla.org/show_bug.cgi?id=583935

Does this help?

@garethTheRed As I said, this device is non-rooted (it's actually brand new!) and I have no way to actually get the files. Firefox itself can see thr m, but refuses to download, and no other applications I've found will let me get them. I'm reluctant to resort to USB debug push/pull, but if I get desperate enough I'll certainly try it.

The article doesn't imply that it needs to be rooted, although if you're struggling to access the files then it may indeed need to be. My phone is rooted, therefore I can't  categorically state that you can access them without being rooted unfortunately.

I'm voting to close this question as off-topic because it is an Android question, not a Linux question, since it's really about software on the tablet and not about software on your PC. I flagged for migration to [android.se] (do not repost).


text:
Trying to download foreign aps
I've been trying to customize my android. Found a cool set of buttons but one problem. The app store says it is "not available in (my) country" I have tried spoofing the GPS but that did not work. Does anyone have an idea about how to spoof cell towers or IP addresses to get around the lock out?
I  have surfed through the "duplicate" questions and tried all of those suggestions to no avail.  Best I can tell the problem is the cell towers. But there should still be a way to hack this.

Have you tried disabling your mobile network (maybe even taking out the SIM) and using Wifi only, possibly over a VPN?

AFAIK, you can't do that easily; GPS spoofing, VPN and Market Enabler won't work. I believe the only way is to register a valid foreign credit card of that country on Google Wallet, then try to buy an app, as already answered by Google support itself on one of the duplicates. Have you tried that? Alternatively, find the APK from somewhere and install it manually.

Download an app from the play store called Psiphon:
https://play.google.com/store/apps/details?id=com.psiphon3&hl=en_GB
It allows you to create a vpn, connect to the US one.
If it still doesn't work, you can try several other steps:

Changing the locale of your device
Turn off location all together (easier than GPS spoofing)
Change your home address on google

Tried the other three. How do yo change the google home address?

Go to your google account settings.

I have tried all three and to no avail. Can't figure it out.


text:
I am unable to connect to wifi network
I am using motog first gen mobile, i have upgraded to lollypop os, after that i am unable to connect to wifi router(netgear) in my room, it is not showing in the display, outside room other networks are showing in display, except my room network.
     please help me on this
Regrads,
Praneeth l

Have you attempted turning off the router, waiting a minute, then turning it back on? (this is a legitimate solution)

There are several things you could try. Have you tried restarting both the router and the phone?
If it still doesn't work I would recommend trying to connect to your router using another phone or laptop.
If another phone or laptop can connect, I would recommend reseting your phone.
If another phone of laptop can't connect, you need to debug your router


text:
is there a way to reverse whatever happened to my phone today?
I went snow shoeing today. Before setting out I turned off my phone. It's a Samsung Galaxy S4 on Verizon. After snowshoeing I turned it back on and everything was gone. it looks like it did some kind of reset:

All of my apps were gone.
my launcher was gone.
my pictured were gone.
my accounts were gone
Everything was in Vietnamese

The only things preserved were my contacts. This might be because I use Backup Assistant Plus.
Does anyone have any idea what happened and if I can reverse it?

It does look like it did a factory reset, I'm unsure why, but that appears to be the case. Did it get wet? or very cold?
Unfortunately, there is no way to recover all your data (unless you took a full backup onto your PC). However, as you probably know, many apps sync with the cloud, so it isn't that much of an issue.
If this happens again I would recommend contacting Samsung (if your phone is still under warranty).


text:
Is it normal to see ClassNotFoundException when opening Google Plus app?
I recently have my first Android phone.  It is a Samsung Galaxy Grand Prime (KitKat).  It is not rooted yet and all apps are from Google Play.
Every time I launched Google Plus or Google Photo, I see the following Exception in logcat:
E/Parcel: Class not found when unmarshalling: itw
java.lang.ClassNotFoundException: itw
   at java.lang.Class.classForName(Native method)
   ...
Caused by: java.lang.ClassNotFoundException: Didn't find class "itw" on path: DexPathList[[directory "."],nativeLibraryDirectories=[/vendor/lib, /system/lib]]
   at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)

com.google.android.talk also have the following single error message without stack trace (these errors are from the same process id):
E/dalvikvm: Could not find class 'av', referenced from method f.a
E/dalvikvm: Could not find class 'ax', referenced from method f.a
E/dalvikvm: Could not find class 'android.app.RemoteInput[]', referenced from method f.a
E/Babel: canonicalizeMccMnc: invalid mccmnc
E/Babel: canonicalizeMccMnc: inavlid mcccmnc nullnull
E/dalvikvm: Could not find class 'com.google.android.libraries.hangouts.video.ScreenCaptureVideoSource$2', referenced from method com.google.android.libraries.hangouts.video.ScreenCaptureVideoSource.<init>`

Looks like itw, ax, f.a, etc are obfuscated names.  I would like to know wether these errors are normal or not.
Added more information to question:
Google+ is a built-in application located in /system/app/PlusOne.apk.  As I don't have root access, I can't remove and reinstall it.  Based on process id, looks like /system/bin/tlc_server raised this exception.  I don't have any idea what is tlc_server.  If I use the original version without updates, exception is raised when I view any photo (java.lang.NoClassDefFoundError: hay) or opening G+ (java.lang.ClassNotFoundException: ejf).  After upgrading to the latest version of Google+, the following exception appears only for the first run:
java.io.InvalidClassException: eqb; Incompatible class (SUID): eqb: static final long serialVersionUID =8874316054258000122L; but expected eqb: static final long serialVersionUID =0L;
   at java.io.ObjectInputStream.verifyAndinit(ObjectInputStream.java:2343)
   ...
   at com.google.android.apps.plus.service.EsServie.d(PG:5584)
   ...
   at elj.a(PG:70)
   at bd.b(PG:425)
   at bd.a(PG:395)
   at dm.b(PG:104)
   at dh.a(PG:73)
   at iak.a(PG:120)
   at iak.b(PG:16)
   at dg.a(PG:61)
   at dt.b(PG:47)
   at dz.handleMessage(PG:474)
   at android.os.Handler.dispatchMessage(Handler.java:102)
   ...

These errors are not normal, I don't have them.
For the google talk error, do you have hangouts installed?
And for the g+ error, have you tried reinstalling the app, or a full factory reset.

Yes, both G+ and Hangout are default apps that comes with this device (/system/app/PlusOne.apk and /system/app/Hangouts.apk).  This device even has line-4.3.0-release-20140428133612-MA_SAM.apk as prebuilt apps.  I can't remove them but I've tried to delete upgrades and caches for G+.  Exceptions still occur when viewing photo.  They seems to be raised by /system/bin/tlc_server.

Have you disabled any apps?


text:
how to unlock Xperia from emergency call display
After booting, my Xperia M2 mobile is locked and displayed Emergency call
How should I do to get out from this screen and go to the home screen ?
Regards,
Patrice.

I have resolved my problem
I activated screen lock with the SIM code.
So I had to enter the SIM code twice.


text:
Rooted phone having problems with switching on
I recently rooted my samsung galaxy s5, i did something wrong on one of custom roms, I thought I was installing the new system or something, it got me into the boot system.
I choose apply (something) and it restarted... ever since I cannot switch my phone.
I mean it does switch on but then the home screen is completely black, and the notification shows unfortunately, settings has stopped it shows a notification to almost every single app saying it stop working. Once I press OK every single notification, it just black screen, nothing changes if I press anything.
I tried to restarting, rebooting, re-rooting...nothing.
Does anyone have a solution for this.

What about Factory reset? You can go to recovery I suppose.

i suggest going back to official firmware. its the only thing i can think of. if you want to download official firmware got to this page http://www.sammobile.com/firmwares/ and find your variant, its latest firmware, and install it. the page has instructions as well.


text:
Go launcher Ex (german) not opening anymore
I am using Go Launcher Ex (or go launcher Z), german version, on my sgs5 and since the update last night (today is the first of march) I cannot access it anymore.
As soon as I press the home button or access it through google play --> open a message appears in the taskbar, saying that an unexpected error happened. Clicking on this message allows me to send a log to the Dev team, which I did.
But I hope that maybe this website is faster in answering because it's now been over 12 hours without any un-automated response. I understand that it's difficult to manage an app with so many users, but with SUCH a bug...
Anyways, I hope you have Ideas what I can do. I tried:
- clearing Go Launchers Cache
- stopping Go Launcher and restarting it by pressing home again
- search for the last stable apk on google, which I didn't find (also, the version displayed in the app details is Go Launcher Z version 1.0.0 ...)
I did not try to restart the phone because in that case, I might not have access to google play anymore which I use right now to start the apps I need to.
EDIT: There is an update available, but it only fixed the Problem for me until I rebooted - now nothing works anymore
Also, uninstalling go launcher through adb didn't help at all for me
EDIT 2: Some people reported in the go Launcher comments in play store that they could start the phone in safe mode and reinstall go launcher. (safe mode is usually pressing volume down while booting) Other people found that reinstalling brought the same error but at least the uninstall worked. For me, uninstalling didn't help but maybe it'll work for you
EDIT 3: after a not working update, they finally created a working update. I used a hard reset to fix the boot problem but I guess using Safe mode to reinstall Go Launcher should work too (Volume down and booting)

Hi lucidbrot, if you found an answer please add it as answer, don't edit it into your question, it's perfectly fine to answer own questions.

I can't - somebody put a min. 10 reputation barrier on this to prevent useless "me too" answers. Could you maybe answer it? :)

Well i don't have more info so maybe let's wait for somebody else


text:
Telegram replaced WhatsApp connection for contacts in address book
I just subscribed to Telegram, and I discovered that for all my contacts that have both Telegram and WhatsApp, their WhatsApp entry/connection in my address book got replaced by the Telegram one, while I was expecting both would show up.
Is there anything I can do to see both of them?

Telegram will not replace Whatsapp contacts. Whatsapp doesn't store any of your contacts on its server. It just reads your address book and find matched contacts that have Whatsapp account and display them as Whatsapp associated contacts. This is different from how Telegram stores your Contacts. Telegram uploads your contact database to your account on its servers and keeps a copy of your address book on its servers. Once an address book entry is kept on its server, it gets displayed as telegram contact, even if you don't have it in your phone.
If you are unable to see WhatsApp contacts that do have Whatsapp account, then the problems appears to be Whatsapp not able to read address book.  It it irrelated to having Telegram installed.
Possible solutions are:

Try Reinstalling WhatsApp.
First, backup your chat history. Go to WhatsApp > Menu Button > Settings > Chats and calls > Back up chats or Chat backup. Then uninstall Whatsapp. Reboot phone. Reinstall WhatsApp and restore chat history during account setup.
Sync WhatsApp account.
Go to Settings > Accounts, press menu button and check Auto Sync data. Also, Tap on WhatsApp and select checkbox for Contacts sync.
Check your address book.
Check if your address book is having all of your contacts along with their phone numbers. Also check if you have disabled WhatsApp contacts display. Go to Contacts > Menu button > Contacts to display and see if All Contacts is selected. Also go to Contacts > Menu button > Accounts and see if both WhatsApp and Telegram accounts can be seen and refreshed.

I removed Telegram several months ago, so I can't try your suggestions. But I'm sure they'll help others. Thank you.


text:
Keyboard Switcher-Does Not Display on Navigation Bar
I have the Nexus 9 and the HTC folio keyboard.  I cannot get the keyboard switcher to display in the navigation bar.  I have checked the settings for apps and both Google keyboard and Swiftkey apps are enabled and the notifications boxes are ticked. I want to display the switcher so that can turn off the folio keyboard which is a battery hog.

things have changed a bit in Lollipop. On the Nexus 6, for example, there's a new softkey you can use to change keyboards.

I only have this icon when the device keyboard is activaated. And even when this does display it doesn't show the Folio keyboard.  I a looking for an easy way to turn the keyboard on and off.

was the Keyboard activated through the app?
you should be able activate the keyboard through the app.
alternatively, you can go to:
settings.
language and Input.
and select, selector Icon.
or in the Language and Input menu Choose you keyboard.


text:
Can I flash an unlocked G900T bootloader on a G900A?
I have a G900A and a G900T (short story: couldn't live any longer with the locked bootloader on G900A so I bought a G900T to use on AT&T). It's possible to flash a custom recovery/ROM onto the G900A, but it seems that the bootloader will recognize things as not being signed on boot and will not allow booting.
However, if I were to flash the G900T's bootloader onto the G900A, I could potentially bypass this restriction. Since it's basically the same hardware, it should theoretically work. Not wanting a hard brick, is my logic correct? What facility examines if the bootloader is signed? Will it allow me to flash an unsigned bootloader in Odin? Is the bootloader truly the source of the locked problem?

That sounds thoroughly  dangerous, but I don't know enough about that device's bootloaders to properly answer your question.

It sounds incredibly dangerous, but the theory is interesting. I'll try out XDA developers.