Hard Reset SAMSUNG M110S Galaxy S

First method:

1. Power on the device.
   
2. Then tap this code: *2767*3855#
3. Now wait until your phone reboots.

Second method:

1. Make sure, that your phone is off.
2. Next press and hold Volume down + Home button + Power button, and release them when you see menu of Recovery Mode.
   
3. Then scroll to "wipe data/factory reset" using Volume Down button, and to select use Power button, or Home button.
   
4. Now choose "yes" from the menu, and confirm.
   
5. Afterwards press Home button to enter option "reboot system now".
   
   
6. That's all.

 

WARNING !
Hard Reset will erase all of your data
All described operations you are doing at your own risk.