OPEN PATTERN LOCK OF ANDROID
Step 1: Connect your Android Phone to Your
Computer.
Step 2 : Open command prompt as administrator.
Step 3 : Now in command prompt window type the
following code carefully exactly as it is and then
press enter.
adb shell
cd /data/data/com.android.providers.settings/
databases
sqlite3 settings.db
update system set value=0 where
name='lock_pattern_autolock';
update system set value=0 where
name='lockscreen.lockedoutpermanently';
.quit
Step 4 : Now you will some screen as shown below
and then you can reboot your phone and now when
your will start again then try unlocking your phone
using any random lock pattern and it will work
pretty fine.
Step 5 : If you face any problem repeat same steps
but instead of the above code try using adb shell
rm /data/system/gesture.key and then press enter and restart