First Method » : Unlock Pattern Security With USB Debugging
This method will be useful for those device which are not screen lock. for screen lock pattern solution use 2 method.
Follow below steps
1 : Go to the settings » Development tab than click on USB debugging and make it enable
2 : Now connect your device with your PC via USB
3 : Open command prompt by typing 'cmd' in run..
4 : Now type this code in cmd : 'adb shell' (include space) and press enter
5 : Now type 'rm/data/system/gesture.key' and press enter
6 : Now restart your mobile and your done!!!
Congratulation you have successfully unlocked your pattern security.
Second Method » : Simple method to unlock for screen locked devices
Here is the second method to unlock pattern security without computer
1 : Switch off your Phone
2 : Now press Up volume button and power button at the same time and hold it for 1-minute
3 : You will be enter into safe mode of your phone.
4 : Now open menu and click on Home button
5 : Now click on option and choose 'Delete all user data'
6 : Now wait to clear all user data once it will be finished your phone will be automatically restart and your pattern security will be unlocked.
Third Method : This Method is for Samsung Mobiles
1 : Turn the lock screen on and click on the Emergency call button
2 : Now type this number : *2767*3855#
3 : Now press call button
4 : Once you will done with all process your Pattern lock will be reset to default (1234 is default code)
Congrats you did it successfully!!!