How to Unroot/Unbrick LG G5 with Stock Factory Firmware!

For those of you who want to unroot/unbrick your LG G5 with 100% stock factory firmware because you need to return the phone for warranty or perhaps you just want to restore a bricked LG G5, here’s how to do it easily using TOT/KDZ stock factory firmware files and LG UP program.

*Note – You will need a Windows computer to do this.

This will work on the following LG G5 models:

  • T-Mobile LG G5 H830
  • Sprint LG G5 LS992
  • Verizon LG G5 VS987
  • European LG G5 H850
  • Rogers Canadian LG G5 H831

Step 1. Power off your LG G5.  Then hold down the Volume Up key and connect a USB cable from your phone to your computer.


You should see “Firmware Update” screen on your LG G5.


Step 2. Download all the necessary files for your model of LG G5, you can download them all here.

You will need to download DLL and stock firmware for your model of LG G5, also LG G5 USB driver and the LG UP program.

Go ahead and run DLL, USB driver, and LG UP program to install them all (just double-click on the files).


Also unzip the stock firmware and you should get a file ending in either “.tot” or “.kdz”.


Step 3. If you have the DLL and USB drivers installed correctly, you should see “LGE AndroidNet USB modem” like below in your Device Manager.


Step 4. Run the LG UP program you installed earlier, you should see a COM port number with highlighted line like below.

Max Lee

Max Lee is founder of He is dedicated to making easy-to-follow tutorials on rooting various different Android devices including the LG G5.

7 Responses

  1. Breyn says:

    Help verizon LG G5 Stuck on firmware update and CAN NOT LOCATE AMY OTHER OF THE NEEDED FILES

  2. pabs says:

    followed this method after boot looped twrp after 10i update. now have totally black screen. cannot get into download mode even. any suggestions?

  3. leo d says:

    i am exatly the samecall black screan cant do anythinplease help

  4. Alex says:

    I am using LG G5 (LG-H860), so what firmware version should I download ?


  5. Ryan says:

    same here – black screen help

  6. patocuak says:

    works for downgrade from nougat ?

  7. Tiago Gonçalves says:

    I messed up G5. It has stopped at 10% and does not update. It does not leave the “Firmware Update” menu nor update with any ROM.
    I have the H85020A version with root, and I tried to put the H85010C, the LGUP forever at 10% and the G5 at 1%. If you choose another version such as the H85020A or H85020D the program gives an error and turns off.

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