Samsung C3630 hard reset: Enter *2767*3855#

Samsung Chat 350 hard reset

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Samsung E2330 hard reset

Samsung E2652 Champ Duos hard reset

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Samsung Galaxy Fit S5670 hard reset: Press and hold MENU + POWER...

Samsung Galaxy Gio S5660 hard reset: Press down HOME key and the Power button, then...

Samsung Galaxy Pop i559 hard reset

Samsung Galaxy Pro GT-B7510 hard reset: Press T key + ...

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Samsung Google Nexus S 4G hard reset: Press VOLUME UP + POWER on the phone.

Samsung I9003 Galaxy SL hard reset: Turn off your phone. Press vol up power and

Samsung i997 Infuse 4G hard reset: Press and hold VOLUME UP + DOWN + POWER on i997, then...

Samsung M190 Galaxy S Hoppin hard reset

General advice: Before you buy a new cell phone or new tablet, please try the following procedure to repair your device in a software way. First charge your battery, backup your important data if possible and in most cases take out SIM and SD card before doing factory reset. It is impossible to recover your data after doing a hard reset, so online backup is always important. For all of your data, a backup should be done on an external device, hard drive, raid system or media. With or without insurance, if your cell phone lost, damaged or stolen at least your invaluable data is backed up in a safe place. If you are about to sell your phone and you want to wipe your personal data, or if your phone affected with virus you have to do a hard reset. In some cases, you can delete the forgotten password or lock pattern from your device as well. All information is for devices with stock based ROMs. If you are using rooted device, always back up your EFS folder first, containing your IMEI info, etc.! Please also note, that a hard reset operation will not unlock your mobile phone's SIM lock or network lock, but it will remove the unlock pattern, remove the user password or PIN password (NOT the SIM card's 4 digit PIN code). Also note that the firmware version will not be affected in any way, it will not be downgraded, it will remain the same you are using and if you have rooted your device, root privileges remain also unaffected.