Home Tips and Tricks How to Unlock Galaxy S4 for Free

How to Unlock Galaxy S4 for Free

how to unlock your tmobile and att samsung galaxy s4 for free

Samsung Galaxy S4 was released almost 2 years ago and is still one of the best smartphones in the market right now. To make things even better, Samsung is providing new updates for Galaxy S4.

There are many ways to do it, some techniques suggests you to pay for an unlock code and some to root your phone. But the tricks we are providing here are straight forward and you do not need to pay anything. Here are the simple tricks to unlock Galaxy S4 region lock.

Unlock Galaxy S4 TMobile for Free – Method 1

If you are a T-Mobile Galaxy S4 user, use the following steps to unlock your device. This is helpful if your device does not qualify the T-Mobile unlock policy.

Here are the steps:

  1. Goto phone dailer, and enter *#27663368378# for the debug service menu.
  2. In “ServiceMode”, select [1] UMTS
  3. In “UMTS MAIN MENU”, select [1] DEBUG SCREEN
  4. In “DEBUG SCREEN”, select [6] PHONE CONTROL
  5. In “PHONE CONTROL”, select [6] NETWORK LOCK
  6. In “NETWORK LOCK”, select [3] PERSO SHA256 OFF
    It should show:
    SHA256_ENABLED_FLAG[1]
    SHA256_OFF => SHA256_ON
  7. Now touch the first line SHA256_ENABLED_FLAG[1]
    It should show:
    MENU NOT EXIST
    PRESS BACK KEY
    Current Command is 116631
  8. Now press the menu button and select “Back”
    It should show:
    SHA256_ENABLED_FLAG[0]
    SHA256_OFF => Not Change
  9. Again, press the menu button and select “Back”, and you’re back in the “NETWORK LOCK” screen
  10. Press the menu button and select “Back”, and you’re in the “PHONE CONTROL” screen
  11. Press the menu button and select “Back”, and you’re in the “DEBUG SCREEN” screen
  12. Finally, press the menu button and select “Back”, and you’re back in the “UMTS MAIN MENU” screen
  13. Select [6] COMMON
  14. In “COMMON” screen, select [6] NV REBUILD
    Now you are in the “NV REBUILD” screen, you should see the following text:
    ——————————
    Golden-Backup exist
    You can Restore Cal/NV
    ——————————
  15. Now for the final step.
    In “NV REBUILD” screen, select [4] Restore Back-up
    The button lights for menu and back should come on, and the phone will auto reboot in a few seconds.

This video demonstrates how to SIM unlock Galaxy S4 for free

How to unlock Galaxy S4 – Method 2

This unlocking procedure is based on latest FCC directive for unlocking smartphones. To make things more clear here is the important FCC order which bound all carriers and operators to unlock smartphones to use on other networks.

Before you call customer care to unlock your Samsung Galaxy S4 make sure you have all the details about the contract attached to the phone subscription.

Will my provider unlock my phone?

All service providers who signed onto the CTIA Consumer Code for Wireless Service have fully implemented the six standards on unlocking. Participants include all nationwide service providers, as well as a number of regional providers. Each participating provider has posted its unlocking policy on its company website and will respond to unlock requests.

Here are the unlocking policies for major service providers in USA

AT&T Mobile Unlocking Policy
All relevant information for AT&T is present at this link https://www.att.com/deviceunlock/

T-Mobile Mobile Unlock Policy

T-Mobile also has similar policy as AT&T when it comes to mobile unlock. You check the details here https://support.t-mobile.com/docs/DOC-1588

Also you need the IMEI (International Mobile Station Equipment Identity) number of the phone. Each phone has a unique IMEI assigned to it.

You can get the IMEI of your Galaxy S4 by the following methods.

Method 1
1. Open the phone application on your Galaxy S4
2. Type *#06# . This will show up the IMEI number of the phone.

Method 2

1. Open Settings. Go to More and then press on About Device.
2. In About Device there is a option called status. Tap on that and you can find your IMEI.

After getting the IMEI call your customer support and they will help you to get the Unlock Code.