How To Reset Pattern Lock Or Password Lock On Android without formatting..

Download the app from the below link.

1. Copy Aroma File Manager.zip 2 ur memory card
2. Open ur recovery (press volume Down + Pwr button or it can b diff in sum 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 frm SD/external" n select aroma file manger.zip File dat 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 , Goto menu , wich is locatd in bottom strip n den select Settings.
7. Goto bottom n select "mount all partition in startup " den exit frm aroma file manger.
8. Now after exit , re-update dat aroma file again n it'l open again.
9. Goto 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 promptd , choose delete n delete dat file n restart.
Done.

Link : http://www.4shared.com/zip/NicbIg9V/aromafm-180.html

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