SIM Unlock T-Mobile LG G4 with this custom ROM

Want to SIM unlock your T-Mobile LG G4? Well, there’s an easy way if you’re in for flashing a custom ROM. LG G4 hardware is same for all its GSM based variants, meaning if you could flash firmware of international LG G4 on your T-Mobile variant, then perhaps, you’d unlock the T-Mobile network restriction on your G4 and use SIM from any carrier in the world.

Developer MicroMod777 has ported over the international LG G4 firmware to the T-Mobile LG G4 and it does the SIM unlock job without any flaw. Plus, as you’d expect, it’s pre-rooted as well and come as a recovery flashable zip.

However, you’ll have to trade the WiFi calling functionality since it’s an exclusive feature of T-Mobile and we’re removing the T-Mobile software in favor of the global software.

Also, since this is the first release of this custom ROM, there are some bugs present on the ROM. Like you can’t make HD calls or use LTE while calling, but these are minor bugs and should sort out within the next few releases.

To install the custom ROM, you’d need root access first and TWRP recovery, which is required for flashing a (.zip) custom ROM file. Below are helpful guides for getting both root and TWRP on your T-Mobile G4.

[icon name=”hand-o-right” class=”” unprefixed_class=””] Root T-Mobile LG G4  |  T-Mobile G4 TWRP recovery

Once you’ve TWRP recovery installed, download the ROM file from the link below and flash it using the custom recovery with a full wipe / factory reset.

[icon name=”download” class=”” unprefixed_class=””] Download Global ROM for T-Mobile G4

[icon name=”list-ol” class=”” unprefixed_class=””] How to Flash a Custom ROM using TWRP recovery

For updates and bug fixes, be sure to visit the original development page for this ROM.

Posted by
Shivam Malani

Shivam is our resident designer and web developer who also enjoys writing. He loves to meditate, drive on the freeways and hunt for snipers during his Call Of Duty playtime. Email: [email protected]

12 Comments

  1. Hi:
    I have the LG G4 H811 T-mobile, which was network locked (SIM) I followed all your step and I was able to install the GLOBAL ROM for T-mobile, now my phone is running version H81510c and everything works great except the SIM which is still locked I get this message “NETWORK LOCKED INSERT CORRECT SIM
    any ideas or suggestions? something else that I need to install? thanks for your time

  2. Hi:
    I have the LG G4 H811 T-mobile, which was network locked (SIM) I followed all your step and I was able to install the GLOBAL ROM for T-mobile, now my phone is running version H81510c and everything works great except the SIM which is still locked I get this message “NETWORK LOCKED INSERT CORRECT SIM
    any ideas or suggestions? something else that I need to install? thanks for your time

  3. i would try to use the dial code with model 815 to enter the unlock code you purchase frpm the web. calculated by the imei

    1. This method does not work for Sim Unlock,
      I flashed ported ROM, and used 2945#*MODEL# to enter unlock code, it said “Unlock successful”, rebooted, but now it still says Network Lock on screen.

      Any one succeeded somehow?

  4. i would try to use the dial code with model 815 to enter the unlock code you purchase frpm the web. calculated by the imei

    1. This method does not work for Sim Unlock,
      I flashed ported ROM, and used 2945#*MODEL# to enter unlock code, it said “Unlock successful”, rebooted, but now it still says Network Lock on screen.

      Any one succeeded somehow?

  5. I’m not sure if you know this site but I unlocked my phone for free there, it’s Cphoneunlocker. Com! The unlocking process was easy and the step by step guide emailed to me worked perfectly!
    I hope I helped you :)?

    1. It is not for free, dont lie…

  6. I’m not sure if you know this site but I unlocked my phone for free there, it’s Cphoneunlocker. Com! The unlocking process was easy and the step by step guide emailed to me worked perfectly!
    I hope I helped you :)?

    1. It is not for free, dont lie…

  7. Can tell me anyone there is unlock lg g4 h811 t mobile by using that method

  8. Tihomir Stoyanov

    Can tell me anyone there is unlock lg g4 h811 t mobile by using that method

Comments are closed.