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