Hard Reset DOOLNNG F22

How to factory reset DOOLNNG F22? How to wipe all data in DOOLNNG F22? How to bypass screen lock in DOOLNNG F22? How to restore defaults in DOOLNNG F22?

The following tutorial shows all method of master reset DOOLNNG F22. Check out how to accomplish Hard Reset by hardware keys and Android settings. As a result your DOOLNNG F22 will be as new and your HS6620D core will run faster.

  1. At the very start, turn on you DOOLNNG F22 device. To do so press and hold the Power button. DOOLNNG F22 Power button
  2. After the device turns on, swipe left on the screen to open the sport menu.
  3. Then tap on the Menu button to open the Main menu. DOOLNNG F22 Sport menu
  4. Next, scroll down and tap on Settings. DOOLNNG F22 Menu button
  5. Now, scroll down and tap on Reset. DOOLNNG F22 Reset
  6. Finally, tap Reset to confirm. DOOLNNG F22 Reset
  7. Good work!

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