Hard Reset NTT 309B

How to factory reset NTT 309B? How to wipe all data in NTT 309B? How to bypass screen lock in NTT 309B? How to restore defaults in NTT 309B?

The following tutorial shows all method of master reset NTT 309B. Check out how to accomplish hard reset by hardware keys and Android 4.2 Jelly Bean settings. As a result your NTT 309B will be as new and your Cortex A7  core will run faster.

First method:

  1. At the very beginning, switch off the device by using the Power key. Format NTT 309B
  2. In the next step hold down the Back + Power button for a couuple of seconds. Restore NTT 309B
  3. You can release held keys as soon as you see the Recovery Mode menu.
  4. Then from the menu choose "Wipe Data/Factory Reset" by touching this feature. Hard Reset NTT 309B
  5. Afterwards tap "yes" to confirm the operation if you are certain you want to clear all your data. Remove Screen Lock on NTT 309B
  6. In the last step accept option "reboot system now". Remove screen password on NTT 309B
  7. Good job! You have just performed the hard reset operation.

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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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