Before you buy a new cell phone or new tablet, please try the following procedure to repair your device. First charge your battery, backup your important data if possible and in most cases take out SIM and SD card. 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.
Airis T483 soft reset
Locate T483 RESET button under the battery cover / stylus. Press RESET hole (+ press and hold POWER button.)
Airis T483 hard reset
With the phone turned off, press and hold POWER ON key + WIN key + OK key.
