How To Unlock AT&T SAMSUNG Galaxy Express 3 (J120A) by Unlock Code.

Why unlock my Samsung Galaxy Express 3?

The unlocking service we offer allows you to use any network providers SIM card in your SAMSUNG Galaxy Express 3. Typically this involves unlock codes which are a series of numbers which can be entered into your mobile phone via the phones key pad to remove the network restriction and allow the use of other domestic and foreign networks.

How Do I unlock my Samsung Galaxy Express 3?

Unlocking a Samsung Galaxy Express 3 phone is a quite simple process. Please follow these steps :

  1. Get the unique unlock code of your SAMSUNG Express 3 from here
  2. Take out the original SIM Card from your phone Samsung Galaxy Express 3.
  3. Insert a non-accepted SIM Card into your Galaxy Express 3.
  4. Now, you should see a box to enter “Enter network unlock code”.
  5. Enter the unlock code and click Unlock.

That’s all. Congratulations, enjoy your unlocked Samsung Galaxy Express 3 on all networks, worldwide.


  • All carriers are supported for unlocking (AT&T, T-Mobile, MetroPCS, Cricket, EE, Vodafone, Orange, O2, 3 UK, Virgin mobile, Rogers, Fido, Bell, Telus, SFR, Bouygues, Movistar, TIM, TMN, A1, Telekom, etc…)
  • Unlocking is permanent, you don’t need to enter the unlock code anymore.
  • All Samsung Galaxy Express 3 variants are supported for unlocking.
  • SAMSUNG Galaxy Express 3 is also know as SAMSUNG Galaxy SM-J120A.