Hard Reset SAMSUNG i400

First Method:

  1. From the home screen, select Applications.
  2. Select Settings then Privacy.
  3. Select Factory data reset.
  4. Select Reset phone.
  5. Enter security code default is 0000.
  6. Select Erase everything.
  7. It is done.

Second Method:

  1. Handset must be turned on.
  2. Next go to dialer.
  3. Tap this code *2767*3855#
  4. After this device will restart.

WARNING !
Hard Reset will erase all of your data
All described operations you are doing at your own risk.

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