How To Reset Pattern Lock Or Password Lock On Android (without formatting)..??!

Scan the QR code n download the app:

1. Copy Aroma File manager.zip 2 ur memory card.

2. Open your recovery (press volume Down + Power button or it can b diff in some other manufacture google it.)

3. There'll b an option in recovery called "mount" . Go in dat option n den mount all cache , system.etc.

4. Then select "update" n select "apply update from SD/external" n select aroma file manger.zip file that u downloaded.

5. After Flashing or updating, d aroma file manger will open. Use volume keys for up/down n power button 2 select like u use in recovery.

6. In aroma File manager , Go to menu , which is located in bottom strip n den select Settings.

7. Go to bottom n select "mount all partition in startup " then exit from aroma file manger.

8. Now after exit , re-update that aroma file again n it'l open again.
 9. Go to data >> System.

Then find 'gesture.key' (for pattern lock) n 'password.key' (for password lock) 

then long touch on gesture.key or password.key n sum option ll b prompted , choose delete n delete that file n restart.
Done.

Note : Use Exit option in Aroma File manager don't direct reboot in Recovery.