Hard Reset Samsung Galaxy S2 with Dialer Code:
- Turn on Samsung Galaxy S2
- with dialpad number, press *2767*3855#
- Then the Samsung Galaxy S2 will reset all you data and back to Factory Default
- Remove the Battery for 10 seconds
- Put The Battery at the position again
- Press together and hold: VOLUME UP + HOME BUTTON (press continuously and go to step 4, but remember Do Not Release this step 3 button)
- Continue with pressing POWER BUTTON about 3 seconds dan release POWER BUTTON after that (when pressing POWER BUTTON, do not release VOLUME UP + HOME BUTTON at step 3)
- You will see Recovery menu, Choose WIPE DATA/FACTORY RESET. At this point, to ENTER press POWER BUTTON, to NAVIGATE press VOLUME UP and VOLUME DOWN (depend on what we need). This is the end of step.
- Note: For step 3, HOME BUTTON locate in bellow LCD in the middle button.
Menu > Setting > Privacy > Factory Data Reset > Reset Phone
This is the way to erase all data on Samsung Galaxy S2, such as Google Account, Contact, SMS, application and it settings. After doing the Reset Phone by Software then Samsung Galaxy S2 will run automatically and process to delete the data back to factory default.
