How to Unbrick LG G2

Tweaking your LG G2 is easy but unfortunately it is not always safe. If for example you are using guides that haven’t been previously tested you can end up in messing things up and also in damaging or bricking your Android smartphone. So, then you will find yourself in a delicate situation as you will have to unbrick the LG G2 by yourself – you can’t take your phone to service since you have applied an unofficial procedure as the warranty has been void. Because of that I have decided to develop this dedicated tutorial which can easily teach you how to fix a damaged or bricked LG G2.

Now, during the guidelines from below you can find several ways that can be used for repairing your Android device. So read all the lines and see which procedure to apply in your case. You have it all detailed here so don’t hesitate and check it all out. Do note that in case your device is severe damaged and you cannot apply the steps from below for unbrick it, the only solution you can take is the one where you go with your LG G2 back to service for technical assistance – but let’s hope you don’t have to do so.

You can say you have a bricked LG G2 when your phone can’t be used in normal way. For example you notice that you device runs with lags, there are numerous bugs, the screen and the apps freezes constantly, the battery drain fast, your phone gets stuck in a boot loop, it always boot in recovery mode and so on. These problems might happen due to various reasons but in most of cases the users are experiencing issues after performing operations like gaining root access, unlocking the bootloader, updating with a custom ROM firmware, installing a custom recovery image, flashing a custom kernel, overclocking the device, removing bloatware or in built programs and so on.

All the mentioned procedures are unofficial ones and when performing the same the warranty of your LG G2 gets void – because the binary flash counter will be increased. Now, if you end up in damaging or bricking your Android smartphone, you shouldn’t panic as you can use different methods that can repair your device. The best methods are being explained during the guidelines from below, so you are in the right place.

Before completing the steps from the proper guide, if possible save the data that is there on the internal storage memory of your LG G2. By applying the unbrick method all of your data will be erased, so you will lose your personal info, data and accounts along with contacts list, call logs, market apps, internet settings and so on. The best will be to use dedicated apps from Google Play, but as mentioned before only if you can use your smartphone; else you should skip this procedure as there is nothing you can do.

At the same time, you need to make sure that you can use a computer, your Android device and its USB cable. Now, on your computer it is recommended to deactivate the security protection as the antivirus or antimalware tools might interfere with our work. Moreover, you should charge your phone before doing anything else – plug in the charger especially if there is less than 50% power left, else you can skip this step. Also, remember that the procedures from below are compatible only with the LG G2 and with no other Android device. Furthermore, the steps have been tested only on the mentioned device, so the same will not work on any other smartphone or tablet.

How to Unbrick LG G2

Hard Reset LG G2

It is important to know that most of the problems can be resolved with a hard reset. Whether we are talking about lags, bugs or boot loops, a hard reset might be the perfect solution in which you can unbrick your LG G2. Of course, this method can be applied only if you can use the Volume Down and Power buttons of your device, or if you can enter your LG G2 in recovery mode. If not, you should then proceed to the next section of this step by step tutorial. Anyway, you can easily learn how to hard reset the LG G2 by using our dedicated tutorial.

How to fix boot loop issues

In case your smartphone is stuck in a boot loop you should try to wipe the system (factory or hard reset) and clear cache. A boot loop might happen after applying an official or custom Android update, or after flashing a pre-rooted firmware and so on. Anyway, learn how to unbrick your LG G2 by following:

  • Enter your LG G2 in recovery mode.
  • Then use the recovery mode and clear cache.
  • In order to do so select “wipe cache partition”.
  • Return to recovery menu and select “wipe dalvick cache”.
  • Go back to main menu of recovery and select “reboot system now” in order to boot into Android OS.
  • Don’t forget to make a hard reset too.

How to manually install stock Android OS on your LG G2

If the methods from above aren’t useful then you need to try to downgrade your Android smartphone to stock firmware; of course you will do it manually.

  1. First of all on your computer download the stock firmware for your device; thus from here get the Verizon ROM, from here the T-Mobile firmware and from here the software compatible with other variants of the LG G2.
  2. Also, on your computer download LG Mobile support tool – go to this page.
  3. Moreover, get the flash tool from here and the G2 USB drivers from here.
  4. Unzip the flash tool on your computer, preferable on desktop.
  5. Then install the B2CAppSetup.exe executable file.
  6. Use the same program and install the USB drivers.
  7. Enter your LG G2 in download mode (of course connect it with your computer via USB cable).
  8. From your computer run the UpTestEX.exe executable file.
  9. Now from the window that opens upload the KDZ file and set “3GQCT”, “DIAG”; also click on the “NORMALL WEB UPGRADE TEST” option.
  10. Open the pop up window dubbed as „read phone information” and click on the “Upgrade Start” button.
  11. On “Select Country & Language” choose Republic of Korea, select English as default language and proceed.
  12. Now the flashing procedure will start.
  13. In the end your phone will reboot automatically.
  14. Remove the USB cord as you are done.

Good job; hopefully now you have unbricked your LG G2. If you are still having problems with your phone, use the comments area from below and share the issues with us and we will assist you as soon as possible. Also share your experience with us and with other users who might have a damaged Android smartphone.

LG G2 Articles

  • Andrew Taylor

    My AT&T G2 appears to be in a neverending bootloop. I cannot turn it off, I cannot perform a hard reset, and I cannot enter download mode. No matter what button combo I use, I get a secure booting error – LG logo + about 5 seconds of tiny white text at the top of the screen, followed by the screen going dark (but not shutting off). Any ideas?

    • Theo

      I’ve got the same Issue, and I’m mid way through this procedure. I’ll post if it works or not.

      • Owen

        Any luck with this? My G2 has the same issues and I havent found a solution that works

    • Derek

      Same Exact Problem Here, I don’t know how many forums I’ve checked. Nothing works for me.

    • MyLGfans

      LG G2 Stuck at TWRP?

      Google
      “LG G2 Bricked, keeps going right back to the recovery”

  • Aaron C

    I can not get my G2 into download mode. What do I do from here?

    • semir

      Hi guys I have the same problem I performed d802 stock firmware update on my T-Mobile d801 and I really am screwed, I tried pushing IMG files using adb and I somehow messed it up so bad that even linux cant read my phone, it only stays on the lg logo when I power it on and does not go into download mode or won’t start after hard reset, what should I do please

  • Caspar Tijssen

    I performed all the steps but after setting country and language (step 11) I had to wait, then it said that my phone was not up to date and after that nothing happens. It isn’t flashing.

  • Mikkel

    I cant get my phone into download mode, because when the LG logo appears it just say: “Cause: Boot certification verify”
    What to do?

  • God

    Hi, for the rest of restoring steps, do they work for Aussie D802T as well? My phone bricked, could access to TWRP and download mode.

    Some told me to wipe the dalvik cache, but other told me because Autorac downgraded the kernel, and D802 kernel couldn’t boot D802T, so wiping will of no use???

    I want to keep my personal data if easy to do so.

    Many thanks!

  • Ahmed Ath-har

    My LG L2 had a bootloop TRWP.
    Nothing was working, then suddenly it went black . No Screen, no battery light while charging, no recog from computer, no adb, nothing when i plug it onto the Computer. i searched tons of forums and threads, but my phone does not do anything..please help

    • Bob

      Hi. Did you get this fixed? Exact same thing happened to mine, although I was using PhilZ recovery…

  • mario

    mine LG G2 was stuck in boot loop. I connected it to lg mobile support tool and luckily software showed me that I need to update my phone. LG tool downloaded kitkat, reinstaled and phone now works flawlessly.

    • Prancis Ko

      hi, did the PC detect your phone since it was stuck on boot loop? mine too was stuck on boot loop and my PC couldn’t detect it.

  • robin sundin

    I cant log into my google acounts. Its some broken google files that makes it impossible to log in. Please help.

  • christopher_roung

    when i press the ”upgrade start” button, a window pops up and says that ”lg mobile update s/w is already running”, and i cant upgrade my phone. HELP PLEASE!!!!!!!!!!!!!!

  • Andy Dawson

    i can get into download mode and flash my stock rom but i need to factory reset and flashing doesnt do this grrrrr!

  • MyLGfans

    Hi, All, It seems not able to post links here.
    Just google xda unbrick g2 with lg mobile support tool.
    it is easy, no pain to recover your phone.
    or use LG PC suite to recover your phone.

  • ravasquez

    Hello, a friend brings me a LG G2 ls980 because have’s the boot loop into twrp, reading a searching around two days i find out that the phone is the sprint model so them and t-mobil uses another flash tool that reads .tot rom files, so if you get this issue search un xda-developers forum a thread about get stock rom back for tmobil G2, all the need files to flash back to stock are there.

  • Mario Roman Guijarro

    let me tell you my history with my lg g2, after i was trying to update my phone, i can’t get my phone into download mode, just i can see a black screen when i try to turn on the phone but the logo of LG never display into the screen, after a lot of failed attempts, i have decided to try the method with ubuntu, but don’t work for me, just i finally get a really hard brick phone, so the last chance that i have was send my phone to warranty but i really was thinking that lg support department will not make me valid the warranty, but what a surprise when they tell me that the phone can’t be repaired and they give me the Lg G3 without any charge

    • francesco

      Are you serious? Did it really went that way? Where are you from? I’d like to ear more about your story cause I just bricked my LG

    • francesco

      Ehi, can you tell more the details?

  • salvy

    Hi so my phone actually wont get past the the 2nd step of the updating process, when it gets to around 50% the sreen goes black and there are lines at the top left saying that certain apk’s or direcrotorys dont exist. What could be the issue? (Yes i rooted it a few months ago

  • daVID

    Hey guys i tried to flash an .img twrp file to lg g2 verizon (rooted) then i rebooted and it said verification failed then it went black now it doesent turn on the light wont flash when i connect charger help i just got it in the mail!!!!

  • Averine

    I got into download mode and installed stock ROM using LG Flash Tool, but after installation my lg g2 shows unfortunately com.android.systemui has stopped. I’m not able to do anything on the phone since the message pops up again and again even if I press ok. And the ROM is still the old one. Can’t select anything on the phone.

    Please help.