It will remove all the data ,contacts and apps that you installed
If the mobile phone is switched off, hold down the Power button to turn it back on.
In the next step type in the following code: *2767*3855#
Wait until your phone reboots.
Success! The hard reset operation has just been performed.
Samsung Rex 80 S5222R Restore Factory Hard Reset Format Phone.So lets start the Samsung Rex 80 S5222R Restore Factory, Samsung Rex 80 S5222R Hard Reset.Turn Off the mobile phone for few mints.Samsung Rex 80 S5222R 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.