So my aunt plugged her LG G3 into her laptop to back her phone up with lg suite, and apperantly this triggered an update.
everything went well, till she got an error message: "The Update Couldnt Continue" with instructions to remove the battery,
and plug it back it, because this would resume the update. So she did, and after that, the lg logo showed and the screen went black.
the splash screen showed this error message:
"Boot Verification Fail!
- cause: Mismatch_Sig_Len"
at first thought, i thought, i might be able to flash the stock firmware trough odin, or other flash software.
but this didnt succeed since i couldnt access download mode.
Second thing i tried to do was access recovery, many people said this was done through factory reset, and by just confirming,
so i did, but, it just showed me the splash screen again.
The Tirth Thing i did was just letting it boot, this results in the splashscreen showing, and the screen turning black with the led flashing red and blue.
Its a Dutch LG G3 D855 with stock firmware, no TWRP or root.
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I flashed the stock firmware onto my phone, and all was going well until it turned itself off. It then rebooted into Download Mode, and got itself stuck on 'Firmware Update'. I pulled the battery, rebooted and it went from the LG logo straight to the Firmware Update screen. I've tried going into recovery (which works, but pressing yes OR no still takes it to Firmware update. Going into download mode doesn't work either.
I tried to re-flash it using the LGFlashTool, but my PC can't find the phone in this state. I bought it off a guy on eBay 4 months ago, and it worked fine until the first sentence of this post happened.
EDIT: it's the international D855. The Firmware Update screen says '910K B0 QEM'
Galilwithit said:
I flashed the stock firmware onto my phone, and all was going well until it turned itself off. It then rebooted into Download Mode, and got itself stuck on 'Firmware Update'. I pulled the battery, rebooted and it went from the LG logo straight to the Firmware Update screen. I've tried going into recovery (which works, but pressing yes OR no still takes it to Firmware update. Going into download mode doesn't work either.
I tried to re-flash it using the LGFlashTool, but my PC can't find the phone in this state. I bought it off a guy on eBay 4 months ago, and it worked fine until the first sentence of this post happened.
EDIT: it's the international D855. The Firmware Update screen says '910K B0 QEM'
Click to expand...
Click to collapse
Thats not actually right
Booting into recovery normally should factory reset the phone. Would you be able to post a picture of the firmware update screen
itsbighead said:
Thats not actually right
Booting into recovery normally should factory reset the phone. Would you be able to post a picture of the firmware update screen
Click to expand...
Click to collapse
I tried it then. When I do it, I get the normal 'No (Exit)' and 'Yes' and then the same thing to confirm it. It then goes to the LG logo, and boom! Firmware Update!
I don't have a camera (stupid, I know) but, if you boot into download mode, it looks just like the screen there. Except it shows '910K B(0-99) QEM' in the update box thingo.
Hi, i have the exactly same problem, even if i try to power up the device normally or in download more it goes directly in to firmware update. Any way to fix it or install LGE MTP Driver so my PC will see my phone in order to flash it again?
LE: Video
I have run into the same problem like you guys. I recently updated my phone and it started to malfunction with resets, crashing and eventually got it stuck in boot loop. Then it booted into a green screen that said "demigod crash handler/tz crash" thrice. Instead of a hard reset I decided to using the lg mobile support tool to fix it. During the upgrade recovery my phone went into download mode/firmware update. I could see the progress bar moving and then get stuck and my mobile would switch off. Took out the battery, disconnected and reconnected the phone and tried the process all over again but in vain. I repeated this at least 8 times and eventually gave up. Now my phone is basically useless and only boots into firmware update. Hard reset doesn't work either. Can somebody please help me fix this?
I HAVE THE SAME PROBLEM :crying:
910k b0 qem
I tried to flash TOT file and it kept failing around 10%. I read somewhere that I should select the "Flash Board" option so I did. This also failed and left my phone booting to "Firmware Update" screen with following text in the gray box at the bottom.
910K B0 QEM
Windows no longer recognizes the devices and fails to install drivers.
I believe that what is required here is the "910K resistor flash cable"
Something like this ebay[dot]com/itm/OCTOPUS-Z3X-MICRO-USB-LG-P970-P990-P999-CABLE-56K-130K-910K-VARIABLE-RESISTOR-/131321398015
Can someone confirm or offer a solution?
P.S. This 10 post URL limit has got to go!
Galilwithit said:
I flashed the stock firmware onto my phone, and all was going well until it turned itself off. It then rebooted into Download Mode, and got itself stuck on 'Firmware Update'. I pulled the battery, rebooted and it went from the LG logo straight to the Firmware Update screen. I've tried going into recovery (which works, but pressing yes OR no still takes it to Firmware update. Going into download mode doesn't work either.
I tried to re-flash it using the LGFlashTool, but my PC can't find the phone in this state. I bought it off a guy on eBay 4 months ago, and it worked fine until the first sentence of this post happened.
EDIT: it's the international D855. The Firmware Update screen says '910K B0 QEM'
Click to expand...
Click to collapse
It is possible you flashed the wrong KDZ or TOT file
You can also try to hold the power button and wait untill the LG logo appears
anyone have any luck? Im stuck in this mode also
Hi, I have an LG G3 VS985 on 47a (according to LGUP) and I recently tried installing an OTA update that I have been putting off for a while. During the update I got an error that froze the updating process so I pulled the battery. After pulling the battery I can not get passed the LG logo in the beginning. The logo will show up, turn black for a few seconds, vibrate, then restart again. I tried downgrading using the TOT and KDZ methods but kept getting a no ks version error or some other type of problem. So then I decided to use the newest 48a KDZ file and LGUP to update/overwrite what I have installed right now. The process starts and the phone shows that the installation is working but when LGUP gets to the point where it has to restart the phone (about 80%), it just keeps bootlooping instead of going on with the installation. I tried clearing cache, factory resetting, and everything else I can think of. I read that the bootloader might be corrupted? If that is the case, how would I go about fixing it? Thanks in advance.
Edit: Another strange thing happens when I plug my phone into a charger from the off state. Instead of showing how much battery is charged, it just shows a loading circle on the battery picture then proceeds to restart into the loop (without me touching the power).
Exact same problem I'm having
1 difference my led light does not work . Is there a fix? Need help
Hey! Check the bottom for TLDR.
I have had my G3 since they came out (have the 2GB, 16GB RAM version), and even got the G4, but remained with the G3 since it didn't have any issues with rooting and recoveries...
Anyways, I was talking to my brother on WhatsApp yesterday and ended up checking out my Hangouts messages at the same time. I believe I accidentally hit the camera feature on Hangouts, and then everything froze. I could still talk to my brother, but I could not get to the home screen or even change from looking at Hangouts. I turned off the screen in hopes that I could get back in, but when I turned the screen back on, I could not log into the phone (I do not have a pin or password, it has no lock at all).
After a few more minutes talking to my brother, it suddenly shut off. When I tried to turn it on it went into a bootloop where the front light changes different colors, and the LG logo continues to show that shine going around the logo.
I was able to get into download mode and went ahead and tried to flash a KDZ as per instructions (I have done this in the past). The install would complete and the phone would give the prompt about updating all the apps. Once that was done, it would show the LG logo and again for about ten minutes. Afterwards, it would get stuck in updating all the apps again and performing the same process...
I also tried using the LG PC Suite and trying to "Restore upgrade errors", but every time I would click that option, I would get a Windows error that something happened and close out the program (it never recognized the phone). I then used the LG Mobile Support Tool, which allowed me to perform an update for the firmware. It too completed, but then went back into the process of updating apps, showing the LG logo, then looping.
The final thing I tried was doing a Factory Reset. I was able to get to the area, and when selecting yes, it immediately went to the LG logo and "Life's Good" sign, which it would never get passed. This is also what happens when I try to turn on the phone and wait.
I contacted LG, which was pointless, as I expected. They wanted me to go to a local repair shop, which is of no use to me if they can only perform the same things I have done.
TLDR: My phone can get into download mode and the Factory Reset area, but flashing stock firmware, or performing the Factory Reset, still leads me into one of two bootloop situations. LG PC Suite and LG Mobile Support Tool seem to be of no use.
Does anyone have any suggestions? Is there anything I can try that I haven't?
Thanks in advance!
LucidPhusion said:
Hey! Check the bottom for TLDR.
I have had my G3 since they came out (have the 2GB, 16GB RAM version), and even got the G4, but remained with the G3 since it didn't have any issues with rooting and recoveries...
Anyways, I was talking to my brother on WhatsApp yesterday and ended up checking out my Hangouts messages at the same time. I believe I accidentally hit the camera feature on Hangouts, and then everything froze. I could still talk to my brother, but I could not get to the home screen or even change from looking at Hangouts. I turned off the screen in hopes that I could get back in, but when I turned the screen back on, I could not log into the phone (I do not have a pin or password, it has no lock at all).
After a few more minutes talking to my brother, it suddenly shut off. When I tried to turn it on it went into a bootloop where the front light changes different colors, and the LG logo continues to show that shine going around the logo.
I was able to get into download mode and went ahead and tried to flash a KDZ as per instructions (I have done this in the past). The install would complete and the phone would give the prompt about updating all the apps. Once that was done, it would show the LG logo and again for about ten minutes. Afterwards, it would get stuck in updating all the apps again and performing the same process...
I also tried using the LG PC Suite and trying to "Restore upgrade errors", but every time I would click that option, I would get a Windows error that something happened and close out the program (it never recognized the phone). I then used the LG Mobile Support Tool, which allowed me to perform an update for the firmware. It too completed, but then went back into the process of updating apps, showing the LG logo, then looping.
The final thing I tried was doing a Factory Reset. I was able to get to the area, and when selecting yes, it immediately went to the LG logo and "Life's Good" sign, which it would never get passed. This is also what happens when I try to turn on the phone and wait.
I contacted LG, which was pointless, as I expected. They wanted me to go to a local repair shop, which is of no use to me if they can only perform the same things I have done.
TLDR: My phone can get into download mode and the Factory Reset area, but flashing stock firmware, or performing the Factory Reset, still leads me into one of two bootloop situations. LG PC Suite and LG Mobile Support Tool seem to be of no use.
Does anyone have any suggestions? Is there anything I can try that I haven't?
Thanks in advance!
Click to expand...
Click to collapse
I had the same issue about two weeks ago...tried everything with no success.....
I send my device to LG reparation center...a week ago
Still waiting for an answer...
Probably battery powering issue or motherboard.....
Have u tried LG Up?
opened the phone removed the motherboard and gave a heat blow using a hair dryer on my blue screened LG G3. worked since then no reboots or blue screen. dont know for how long though. try that maibe might work for you
So I recently bought the Korean LG G3 (F400) and the first thing I did was rooting it, which was a breeze. Of course to root it I needed to install the LG Mobile Drivers, which I did and were working completely fine. Then I decided to take a little risk and attempt to flash CWM recovery (I did not know that I need to unlock the bootloader first or BUMP! the device) and well, flashed it the same way I flash stuff on my previous Samsung phones.
So now, when I try to boot the phone, I get the LG Logo and goes through with the boot animation, but after a little less than a second the boot animation fails and I get a black screen + the LED flashing blue and green and the phone remains like that. I tried factory reset but after I click yes it shows the LG logo then goes into a black screen (without the boot animation) + LED flashing blue and red.
So I tried finally going into download mode and attempting to return it to stock via LG Flash Tools, and like I said before the drivers were installed, but when I connect the phone to the PC it gives the message "Drivers were not successfully installed" and the LG Flash Tools fails to detect the phone. I checked within Device Manager and it says the LGE MTP device "cannot start".
So I'm pretty much stuck with a phone that doesn't boot, can't flash anything via adb or flash tools and no recovery installed. Can anyone suggest anything I can do to get this beast back up?
Try using this method http://forum.xda-developers.com/sprint-lg-g3/general/guide-fix-hard-brick-recovery-guide-t3132359
So i was unhappy with my rom so i tried flashing another rom on my lg g4 h815 which didn't work and i didn't seem to be able to install anything with twrp on my phone so i wanted to reinstall twrp which didn't work and now I have no recovery, and no rom on my phone and when i turn it on the lg logo appears and then i have a blackscreen, and then that repeats. the logo only appears for like half a second. when i try holding volume up and power the logo stays a bit longer, though my phone doesn't enter download mode. the LG bridge doesn't seem to recognize my phone even after installing driver, and the lg support tool gives me an error apparently but i can't read what it's saying, the error message is just blank. I'm grateful for any help i can get with this. thanks a lot in advance