How To SIM Unlock Samsung Galaxy S4 Free

How to SIM Unlock the Galaxy S4 (Free Method)

This is a free method and is our favorite but you’ll need to be careful and follow every step without mistakes. In the case of anything doing wrong or mistake, you might brick your device. Make sure that the battery level of your phone is about 60 to 70% before proceeding to further steps. This method is tested and works with the following variants of Samsung Galaxy S4:

• I9500
• I9505
• I9506
• I9505G
• I337
• M919
• I545
• L720
• R970
• I959
• I9502
• I337M
• M919V
• R970X
• R970C

Step 1: Open the phone dialer of your Samsung Galaxy S4.

Step 2: Dial *#0011#

Step 3: Press Menu

Step 4: Tap Back

Step 5: Now press Menu and open the Key input

Step 6: Enter 1 and press OK

Step 7: Press Menu and tap Back

Step 8: Tap [1]UMTS

Step 9: Tap [1]DEBUG SCREEN

Step 10: Tap [6]PHONE CONTROL

Step 11: Tap [6]NETWORK LOCK

Step 12: Tap [3]PERSO SHA256 OFF

Step 13: Press Menu and then Back

Step 14: Tap [6]COMMON

Step 15: Tap [6]NV REBUILD

Step 16: Tap [4]RESTORE BACK UP

After completing the above steps, your will freeze. So wait for a while and press Menu when you can, then Back key ON and then your device will reboot.

Done! You have successfully SIM unlocked your Samsung Galaxy S4.

We hope that this method will work for you but still, you are unable to SIM unlock your phone then you can try the alternative method, which needs you to purchase an unlock code.

How to SIM Unlock the Galaxy S4 with doctorSIM:

Step 1: First, find the IMEI code of your Galaxy S4 by navigating to Settings > About device > Status or simply by dialing **#06#*.

Step 2: Go to doctorSIM.com and purchase an unlock code for your IMEI.

If you encounter any issues while SIM unlocking your Galaxy S4, please let us know in the comments area below.