Nexus 7 tablet (original model) stuck in Safe mode; no way out? I own a Nexus 7 tablet (the first Wi-Fi + 3G model - only front-facing camera, no support for phone calls). Yesterday, I wanted to take a screenshot on my tablet and tried various key combinations; i.e. power key + up/down volume keys; I am not sure about the exact combination, especially because I didn't expect anything bad to happen.

I am not sure that's the exact cause, but there's no other way it'd have gotten into safe mode.

So, how do I get my tablet out of safe mode?

I've tried:


As stated in the official docs (and confirmed by a Google rep.), simply restarting the tablet (i.e. power off, then power on) should fix it.


  ...restart your device to get it out of safe mode

Following these exact steps, I tried manually booting into safe mode, and then restarting the tablet to get out of it.
This:


  It is necessary to hold the volume control switch to "high" and then operate the "on" switch, to get out of safe mode [...] hold the "on" switch for at least fifteen seconds.

Reset device to factory settings.
Reset device in Recovery mode.

(Followed steps under Nexus 7 section) successfully from 1 to 5. Volume buttons become unfunctional at this point, and I am unable to use them to scroll to "wipe data/factory reset". Mind you, the volume buttons worked in the first few steps, so there's nothing wrong with the buttons themselves.
Battery pull, i.e. holding the power button until the tablet restarts.
Remove SIM card and restart. Insert SIM and restart.


But... NONE of them worked. My tablet is still in safe mode and I'm out of ideas. Is there anything I can do to fix this?
I had the same problem. Spent a night to fix it. First i thought it to be a software issue.. browsed and tried infinite fixes. I tried re seating flex cable that connects the volume buttons and the motherboard.I tries to factory reset through boot loader. Thought of flashing a different ROM. Dint work out for me. 

Here is what worked for me.


Open the back panel of the tablet.
https://www.ifixit.com/Guide/Nexus+7+Power+%26+Volume+Button+Cable+Replacement/9926
Flip up the retaining flap on the 'power and volume button ribbon cable' connecting to the mother board. DO NOT PULL OUT THE CABLE NOW.   Be ready to pull out the cable.


3.Press the power button to switch on your tablet.

4.The moment you see Google logo, pull out 'power and volume button ribbon cable'. This will disconnect volume down key, which forces the tablet into bootloader.

5.Now the tablet is ON in normal mode. 

6.Plug the 'power and volume button ribbon cable' into its mother board socket.

7.Close the panel and enjoy using your tablet.

Be very careful with 'power and volume button ribbon cable'. A slight twist or bend will short the connections inside the cable.

P.S : After powering on, Try not to switch off the tablet. The volume down key might malfunction again and your tablet might go back to boot loader. Charge it before the battery dies out. In worst case, you'll have to repeat the above steps again. Messing with the power keys cable is not always a good idea :D

The volume down key and power key combination lets you to go into boot loader. So when volume down key is malfunctioning, your tablet might go for a toss. This could be for various reasons ,

a.Volume key is abused
b. volume key cable is damaged
c. Mother board is unable to supply enough power to volume keys.
d. volume keys socket in the mother board is damaged.