Hard Reset TENGDA I6S

How to factory reset TENGDA I6S? How to wipe all data in TENGDA I6S? How to bypass screen lock in TENGDA I6S? How to restore defaults in TENGDA I6S?

The following tutorial shows all method of master reset TENGDA I6S. Check out how to accomplish hard reset by hardware keys and Android 4.2 Jelly Bean settings. As a result your TENGDA I6S will be as new and your MediaTek MT6582  core will run faster.

First method:

  1. Turn off the device by holding the Power rocker.Remove screen password on TENGDA I6S
  2. Afterwards press and hold together Volume Up and Power button for a few seconds.Remove Screen Lock on TENGDA I6S
  3. You can release held keys when you see the Android Robot.
  4. To enter the Recovery Mode hold down the Power key for a short while.Remove screen password on TENGDA I6S
  5. In the next step use Volume buttons to select "wipe data/factory reset" and tap the Power button to confirm.Permanently delete data from TENGDA I6S
  6. Then choose "yes" from the menu, and accept it with Power button.
  7. After a while accept option "reboot system now" using Power rocker.Permanently delete data from TENGDA I6S
  8. That's all. The hard reset operation should be completed.

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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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