How can I unlock my phone? I locked it using Android Device Manager, but it claims I entered a wrong password I have an Samsung Galaxy S3 Neo.

Bus 002 Device 042: ID 04e8:6860
Samsung Electronics Co., Ltd
GT-I9100 Phone [Galaxy S II], GT-I9300 Phone [Galaxy S III], GT-P7500 [Galaxy Tab 10.1]


The keyboard &amp; language setting is português.

I today installed Android Device Manager and to test it's functionality I locked the phone with the password: "abcd" (4 letters were required).

After entering the password and confirming with the "OK" button of my keyboard, the phone showed me that the password is wrong. "Senha incorreta".

I reset the password after some tries to "123456" and the phone reloaded the lock screen. Again the password showed up to be wrong. I also tried the alphabetic password: "abcdefg" - same error.

I changed the language of my Google account from German to Portuguese and reset the password to "123456" again and I tried to really reboot my phone and unlock the SIM card again. But anyways I can not get through my lock of the Android Device Manager.

I tried to enter the password 35 times wrong with hope to get a chance to authenticate with my Google Account login.

I also tried to connect the phone with adb but it does not show up in this state with:

adb devices


So what can I do to get access to my phone again?
I tested this on a Nexus 5 (v5.0.1) running UK English. I locked the device with Device Manager then, without unlocking it, I used Device Manager to lock it a second time. I then used the second password to unlock the device. So, you should be able to change the lock password using Device Manager - it seems that only the last lock password is required to unlock it.

You can use a one character password to lock the device. Perhaps give that a try?

Another thing you could try (assuming you are using the web page to lock your phone) is to use Device Manager on a different Android device to lock your phone. Perhaps there is something wrong with the translation between the characters in the language entered into the web page and those entered into your phone.

Hopefully someone else might have a better answer than this. :(