Hard Reset GRETEL A9

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

The following tutorial shows all method of master reset GRETEL A9. Check out how to accomplish hard reset by hardware keys and Android 7.0 Nougat settings. As a result your GRETEL A9 will be as new and your MediaTek MT6737  core will run faster.

First method:

  1. At the very beginning switch off the mobile by holding the Power button for a couple of seconds. Master Reset GRETEL A9
  2. In the next step press and push Volume Up and Power keys for a short while. Wipe data on GRETEL A9
  3. Let go of all keys when Boot Mode pops up.
  4. In this mode use Volume Up to select "Recovery" and press the Volume Down once. Remove Screen Lock on GRETEL A9
  5. When you see Android Robot on the screen you should press the Volume Up + Power button once. Wipe data on GRETEL A9
  6. In this mode select "wipe data/factory reset" by using Volum keys to scroll down and the Power button to confirm that. Remove screen password on GRETEL A9
  7. After that choose "Yes--delete all user data" and press the Power key once. Restore GRETEL A9
  8. At last select "reboot system now" with the Power button. Format GRETEL A9
  9. Great!

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Mở Khóa Màn Hình Máy Gretel G9. - video

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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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