Hard Reset SAMSUNG J400

How to factory reset SAMSUNG J400? How to wipe all data in SAMSUNG J400? How to bypass screen lock in SAMSUNG J400? How to restore defaults in SAMSUNG J400?

The following tutorial shows all method of master reset SAMSUNG J400. Check out how to accomplish Hard Reset by hardware keys and Vendor settings. As a result your SAMSUNG J400 will be as new and your core will run faster.

  1. Make sure, that your handset is on.
  2. Tap this code: *2767*3855#
  3. Now your phone will restarts.

Help! This doesn't work