How to Hard Reset on Tengda A9 A?

  1. Make sure you turned off the device.

    Hard Reset keys Tengda A9 A

  2. Hold down the Volume Up key and the Power button.
  3. Wait until the Android logo appears and then release the keys.
  4. Press the Power button to open the Recovery Mode.
  5. Then select "Wipe data/Factory reset" using the Volume keys and the Power button.

    Android system recovery Tengda A9 A

  6. Choose "Yes" using the same keys.
  7. Press "Reboot system now" to complete the process.
  8. Nice work! After these actions, the data on your device will be deleted.

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