want to SIM unlock AT&T Galaxy S4 to ensure that you can utilize any type of SIM card? Well, it’s extremely simple to get your gadget unlocked from the bondage of staying with a single network from your carrier. just type in the 2 words “SIM Unlock” in your web browse bar as well as you will be overwhelmed to see the results of sites that insurance claim to unlock your gadget for a fee.

At DroidViews, we try never to miss a single tip or hacking drill that can not only save your valuable money however likewise provide you the ultimate sense of doing something worthwhile on your own. earlier we published the technique to SIM-Unlock top quality Galaxy S4 GT-I9500 as well as its LTE variant GT-I9505 as well as today we would share the technique of unlocking your T-Mobile Galaxy S4 SGH-M919 and AT&T Galaxy S4 SGH-I337. Please note that the technique provided below has likewise been discovered working on the Canadian variations of the Galaxy S4 from Bell, Rogers, Telus, etc. The credit history for finding the technique goes to XDA member Kaleido.

Advantages of having a SIM Unlocked Phone

Having SIM Unlocked your T-Mobile as well as AT&T Galaxy S4, you can-

Enjoy a sense of flexibility for Free.

Use your phone with any type of network service provider around the world that means you can utilize any type of SIM card from a favored service provider.

Enjoy a permanently unlocked phone that means the gadget stays unlocked even after a firmware update.

Save money on roaming charges while traveling abroad.

Disclaimer:

Follow the guide at your own risk. The procedure provided below has been tested by many T-Mobile as well as AT&T Galaxy S4 individuals as well as it helped most of them, we do not assurance that it’ll definitely work for you too. In many cases, the individuals make some error while complying with the steps, resulting in failure. Therefore, checked out the tutorial a number of times before proceeding as well as comply with the steps carefully. Also, the result depends a great deal on the firmware version you have on your phone. sometimes a software application update may sweep away the possibility of your phone being SIM Unlocked.

Supported Models:

The technique explained right here may or not work on all gadgets because of some new modifications pushed (via software application updates) by carriers when they find a working unlock method.  For a successful result, make sure you have one of the complying with variations of Samsung Galaxy S4. The rate of successful SIM unlocking on T-Mobile S4 is higher than others.

T-Mobile Galaxy S4 SGH-M919

AT&T Galaxy S4 SGH-I337

Canadian Bell, Rogers, Telus, Virgin Galaxy S4 SGH-I337M

Galaxy S4 GT-I9505 LTE

Points to keep in Mind as well as Workaround:

Make sure your phone is on Samsung’s stock official firmware. It won’t work at all if your phone has a custom ROM installed on it.

It does not make a difference whether your phone is rooted or not.

Also, while you comply with the steps, it should have the authorized SIM inserted into it. That means, the SIM from the provider your gadget is locked to.

The SIM Unlock (if successful) accomplished by this technique is long-term as well as survives even after official updates or flashing custom ROMs.

If your phone shows “SHA256_ENABLED_FLAG[0]” at step 9, it means it already enables modifications in unlocking settings. There is nothing to be worried about it. just continue with the next steps.

What to do if you discover “Golden backup doesn’t exist” message at step 16, or your present command is not “116631”? try the complying with workaround:

Select  [3] PERSO SHA256 ON after Step 7. Then continue with Step 9 and your phone should show “SHA256_ENABLED_FLAG[1] in location of [0] value.

If you discover “Golden Backup doesn’t exist” at step 16, produce a backup utilizing choice [1] on the exact same screen as well as then bring back that backup utilizing choice [4]. then wait till your phone reboots.

How to SIM Unlock AT&T Galaxy S4

Open your phone’s dialer as well as dial the complying with code to go into the service menu on your Galaxy S4: *#27663368378#

If the above code does not work for you, try this: *#0011# (found working on AT&T Galaxy S4).

Now select [1] UMTS by tapping on it.

When you get into the UMTS primary Menu, tap on [1] DEBUG SCREEN.

This will take you to Debug screen menu where you have to select [6] PHONE CONTROL.

In the Phone manage menu, you will see an choice called [6] NETWORK LOCK. tap on it.

In the Network Lock screen, select  [3] PERSO SHA256 OFF.

On the next screen tap on SHA256_ENABLED_FLAG[1].

Doing this will show the complying with message:
MENU NOT EXIST
PRESS BACK KEY
Current Command is 116631

Now tap on the menu button (left soft key on your phone) as well as choose Back from the menu. (To go back, do not press the Back button of your device.) When you do this, you should see the complying wnull