Hard Reset O2 XDA Stealth

  1. At the beginning power off the device.Hard Reset O2 XDA Stealth
  2. Then press Windows + OK + Power button at the same time for a couple of seconds.HardReset O2 XDA Stealth
  3. The operation might take several minutes.
  4. Success! The hard reset has just been performed. The device will reset to factory defaults and reboot.

WARNING !
Hard Reset will erase all of your data
All described operations you are doing at your own risk.

Help! This doesn't work