Originally Posted by cmdcool
I want to ask, how to full format the galaxy y, all setting were be reset and all data was clear?
On stock recovery select wipe data/factory reset and wipe cache
On CWM Recovery you can do the same thing or even go to mounts and storage and select format system. (Be careful. If you select format system everything on your phone will be lost and your phone won't boot up. This process is necessary before flashing some ROMS.)