How To Hard Reset Samsung SII I757m

Hello!
Today I will show you how to reset SAMSUNG I757M Galaxy S II HD LTE.Use this method if you don’t know your unlock pattern model or if you have software problems with your phone and you can’t access the phone menu.
Warning!All data will be lost!
Firs step is to power off your phone.

 

Before you give your handset to repair shop or buy new handset, please try the following procedure to repair your device. First charge your battery more then 70%, backup your important data like phonebook, message, email, images and settings and in most cases take out SIM card and SD card. After doing hard reset not possible to recover your data, so online backup is always important. For all of your data, a backup should be done on a external device, hard drive, raid system media or SD card.

 

Hard Reset SAMSUNG I757M Galaxy S II HD LTE
First method:

Power off your device.
Reset SAMSUNG I757M Galaxy S II HD LTE
Then press and hold 4 buttons: Volume Up + Volume Down + Power button, and release only Power button, when Samsung logo apear.
Reset SAMSUNG I757M Galaxy S II HD LTE
Now select option “wipe data/factory reset” from the menu, with Volume buttons to browse, and Power button to enter option.
Reset SAMSUNG I757M Galaxy S II HD LTE
Choose “yes” with Volume Down and confirm with Power button.
Reset SAMSUNG I757M Galaxy S II HD LTE
After this operation, accept operation “reboot system now” with Power button.
Reset SAMSUNG I757M Galaxy S II HD LTE

Second method:

Power on your device.
Reset SAMSUNG I757M Galaxy S II HD LTE
Open the dial pad on your phone and enter: *2767*3855#
Now your phone will reset and restart.
Done!

Third method:

Make sure, that your phone is on.
Reset SAMSUNG I757M Galaxy S II HD LTE
From the Home screen select Menu.
Now choose Settings -> Back up and reset -> Reset device -> Delete all.
Confirm all informations, and wait until your phone will reset and reboots.
Success!