Samsung Galaxy Y Pro Duos B5512 Pattern Unlock or Hard Reset Done
This tutorial tested by me without any risk, just need to remember some impotent notes for data, if you use this tutorial then remember first if you use this tutorial then you can't save data like contacts, mp3, videos, photos because this is factory reset so remember this topic because impotent this step and also check your device battery if low so you can't use this tutorial and check also volume up and down key and power because if this tutorial use then need to three keys for hard reset. You can done problem like Pattern lock, restarting problem, hang on logo, security lock from this tutorial.
Procedure:1. Turn off your device
2. Enter into Recovery mode.
3. Press and holding Volume up button + Home button + Power button
4. Choose wipe data/factory reset menu from Volume Down button
5. Now Choose Yes -- delete all data option
6. Reboot your device
7. You are done from many lock without network lock