Hard Reset TENGDA A9

How to factory reset TENGDA A9? How to wipe all data in TENGDA A9? How to bypass screen lock in TENGDA A9? How to restore defaults in TENGDA A9?

The following tutorial shows all method of master reset TENGDA A9. Check out how to accomplish hard reset by hardware keys and Android 4.4 KitKat settings. As a result your TENGDA A9 will be as new and your MediaTek MT6582  core will run faster.

First method:

  1. Start by turning off the device by holding the Power rocker.Hard Reset TENGDA A9
  2. Next, press and hold together Volume Up and Power button for a few seconds.HardReset TENGDA A9
  3. Release held keys when you see the Android Robot on the phone's screen.
  4. To enter the Recovery Mode hold down the Power key for a short while.Hard Reset TENGDA A9
  5. In this step use Volume buttons to select "wipe data/factory reset" and tap the Power button to confirm.Factory Reset TENGDA A9
  6. Then choose "yes" from the menu, and accept it with Power key.
  7. After a while accept option "reboot system now" using Power rocker.Factory Reset TENGDA A9
  8. That's all. The hard reset operation should be completed.

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