It will remove all the data ,contacts and apps that you installed
Power off your cell phone.
Next press and hold together Volume Up button + Home button + Power button.
Then select option "Wipe Data / Factory Reset" option using Volume buttons to scroll and press Power buton to confirm the operation.
Afterwards choose option "Yes delete all user data".
Now accept option "reboot system now" with Power button.
Turn on your handset.
Now tap this code: *2767*3855#
After that your phone will reset and reboots.
Press Power button until your phone is on.
From the Home screen select Menu.
Next tap Settings -> Back up and reset -> Reset device -> Delete all.
Confirm your decision, and wait until your phone will reset.
Samsung Galaxy Avant G386T Restore Factory Hard Reset Format Phone.So lets start the Samsung Galaxy Avant G386T Restore Factory, Samsung Galaxy Avant G386T Hard Reset.Turn Off the mobile phone for few mints.Samsung Galaxy Avant G386T Remove Pattern Lock.
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Restore Hard reset will set your phone in origional factorry settings. It will remove all the data and apps that you installed. Your contacts will be removed and you have to add them again.