First method:

  1. First of all, hold down the Power rocker for a while in order to switch off the device.Hard Reset OBI WORLDPHONE SJ1.5
  2. Then press and hold together Volume Up and Power button for a few seconds.HardReset OBI WORLDPHONE SJ1.5
  3. Release all keys as soon as the OBI logo appears on the screen.
  4. In the next step use Volume buttons to select "wipe data/factory reset" and tap the Power button to confirm.Wipe data on OBI WORLDPHONE SJ1.5
  5. Afterwards choose "yes" from the menu, and accept it with Power button.Master Reset OBI WORLDPHONE SJ1.5
  6. After a while accept option "reboot system now" using Power rocker.Factory Reset OBI WORLDPHONE SJ1.5
  7. That's all. The hard reset operation should be completed.
See the Next method!

Hard Reset KARBONN SMART A60 - Erase all data by Factory Reset

Hard Reset CoolPAD Modena - bypass Screen Lock by Recovery Mode

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

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