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I just got a new LG g3 sprint variant yesterday. Worked fine for about an hour. Started crashing. Green Screen with crash handler with options to reboot or dump. It would boot up and then crash again. Also received a Kernel crash black screen. So I decided to flash new dll file and tot file using lg flash tool. Put into stock download mode (firmware update Screen) and started flash. Went to 19% the screen went black acted like it turns off and disconnects and fails. Tried 4 different cords with not very different results. the furthest it got was 49%. Now it is stuck in firmware update screen. I remove battery and turn on phone it goes to lg boot screen and then firmware update. If the phone is off and I plug into wall charger the screen shows battery symbol with spinning thing and then firmware update screen comes on. Please help. Thanks for any input in advance. Posted in Sprint g3 section as well but no answer yet. Thanks
chelstromj said:
I just got a new LG g3 sprint variant yesterday. Worked fine for about an hour. Started crashing. Green Screen with crash handler with options to reboot or dump. It would boot up and then crash again. Also received a Kernel crash black screen. So I decided to flash new dll file and tot file using lg flash tool. Put into stock download mode (firmware update Screen) and started flash. Went to 19% the screen went black acted like it turns off and disconnects and fails. Tried 4 different cords with not very different results. the furthest it got was 49%. Now it is stuck in firmware update screen. I remove battery and turn on phone it goes to lg boot screen and then firmware update. If the phone is off and I plug into wall charger the screen shows battery symbol with spinning thing and then firmware update screen comes on. Please help. Thanks for any input in advance. Posted in Sprint g3 section as well but no answer yet. Thanks
Click to expand...
Click to collapse
Follow this guide.
http://forum.xda-developers.com/showthread.php?t=2799647
Read it. You might get Download Fail can not restart to download mode a few times. Keep trying, use different usb ports restart computer, try again, restart phone to download mode. I must have got that message 50 times then all of a sudden it worked. Its a pain but see how it goes. There is another way but it is a pain and involves lots of setup.
Be sure to download the right dll and tot files for your model.
scarecrow2012 said:
Follow this guide.
http://forum.xda-developers.com/showthread.php?t=2799647
Read it. You might get Download Fail can not restart to download mode a few times. Keep trying, use different usb ports restart computer, try again, restart phone to download mode. I must have got that message 50 times then all of a sudden it worked. Its a pain but see how it goes. There is another way but it is a pain and involves lots of setup.
Be sure to download the right dll and tot files for your model.
Click to expand...
Click to collapse
Thanks. I have tried few more times and re downloaded files. I have got a little further. 94%
I now have a Factory reset status big red number 2. not 3. I'm only on my 15th try so i'll keep going. thanks for the input.
Return it. You have a hardware problem that no amount firmware flashes will cure.
Sent from my LG-D855 using Tapatalk
Jessooca said:
This will fix your RED 2. I had the same issue.... basically after you load the .dll and the .tot file, in the lower left corner select BOARD DL instead of usb and after it flashes you'll end up at a screen, click on the "yes" then hold the Power button and tap "Normal" on the screen, it'll reboot and your phone is now fixed. No red 2.
http://forum.xda-developers.com/lg-g3/development/problem-returning-to-stock-try-t2862463
Click to expand...
Click to collapse
Thanks so much. so far so good. I'll update later after I play with it.
still have problems
I'm getting two different crash screens now. A green one that say Demigod crash handler:tz and a black screen about a kernal crash. Any ideas on these issues?
chelstromj said:
I'm getting two different crash screens now. A green one that say Demigod crash handler:tz and a black screen about a kernal crash. Any ideas on these issues?
Click to expand...
Click to collapse
Can you get into download mode? If so try this guide http://forum.xda-developers.com/lg-g3/general/guide-10-step-repair-guide-kdz-bootloop-t2862742
scarecrow2012 said:
Can you get into download mode? If so try this guide http://forum.xda-developers.com/lg-g3/general/guide-10-step-repair-guide-kdz-bootloop-t2862742
Click to expand...
Click to collapse
I will try this when I get home thanks.
chelstromj said:
I'm getting two different crash screens now. A green one that say Demigod crash handler:tz and a black screen about a kernal crash. Any ideas on these issues?
Click to expand...
Click to collapse
I had identical issues on my G2. I had to persevere with firmware flashes to get rid of root. That was simply so that I could return it under warranty. Believe me this is a hardware issue that will persevere through whatever firmware you flash. Your motherboard needs to be replaced. If you are not rooted I would return it now. If you are rooted then you need to carry on until it shows unrooted in the box at the bottom of software update screen. Good luck.
Sent from my LG-D855 using Tapatalk
corrsea said:
I had identical issues on my G2. I had to persevere with firmware flashes to get rid of root. That was simply so that I could return it under warranty. Believe me this is a hardware issue that will persevere through whatever firmware you flash. Your motherboard needs to be replaced. If you are not rooted I would return it now. If you are rooted then you need to carry on until it shows unrooted in the box at the bottom of software update screen. Good luck.
Sent from my LG-D855 using Tapatalk
Click to expand...
Click to collapse
I have not rooted it. bought from individual off the street. The box was sealed and battery sealed. Sprint also said that it had clean esn and had never been activated. Sprint is saying that the Demigod crash handler green screen is a crash due to root and will not return.
chelstromj said:
I have not rooted it. bought from individual off the street. The box was sealed and battery sealed. Sprint also said that it had clean esn and had never been activated. Sprint is saying that the Demigod crash handler green screen is a crash due to root and will not return.
Click to expand...
Click to collapse
If your confident it has never been rooted and it is shown as unrooted I would keep on at them. I've no idea about US consumer legislation but I would guess that they need to provide some evidence that you rooted it.
Sent from my LG-D855 using Tapatalk
I have everything ready to flash stock firmware. Now my computer isn't recognizing phone. Says device in USB is malfunctioning and isn't recognized. Have reinstalled drivers from lg site, rebooted, different cords, download lg suite and nothing has worked. So frustrated . debugging mode is enabled. Developer enabled. Must be something on phone as other devices work. I am also able to get phone to boot normally the odd time. This is when computer can't see it. Restarting goes to green screen 90% of the time. Never had problems before with drivers and phone being recognized till green screen 2 days ago.
Update to OP situation?
I have only had my G3 since April 2015 bought it from best buy and today I had a green screen tz crash show up with demigod crash handler. I have never attempted to root or anything with this phone. I was wondering if anyone has an update with this situation. Recently updated gmail through play store maybe 2 hours prior to crash.
cipollone88 said:
I have only had my G3 since April 2015 bought it from best buy and today I had a green screen tz crash show up with demigod crash handler. I have never attempted to root or anything with this phone. I was wondering if anyone has an update with this situation. Recently updated gmail through play store maybe 2 hours prior to crash.
Click to expand...
Click to collapse
Any soloution to the problem? I had the green screen but now I can't even get to that anymore.
ArcticPat said:
Any soloution to the problem? I had the green screen but now I can't even get to that anymore.
Click to expand...
Click to collapse
It's not something you can necessarily view at will or should want to see again. Maybe try a logcat from adb or get a log report from phone recovery to find more info? I personally haven't had the issue happen since I last posted here. Good luck.
I'm on T-Mobile, and I upgraded from a G3 to a G4. Ordered the G4 from T-Mobile yesterday, got it a few hours ago. Earlier today, I went through the restore process for the G3 using the LG Flash Tool (essentially following these steps here). That all went fine. Shortly after that, without thinking, and without closing the LG Flash Tool, I plugged my G4 into my computer to charge it. I got confused for a moment when I noticed it restarting. The Flash Tool had picked it up, and was setting up to push the G3 firmware to it. I panicked, and unplugged the phone from the computer, right as the phone went to the "Firmware Update" screen. Now, whenever I turn it on, it just goes straight to "Firmware Update". Won't enter recovery mode, etc, etc... No matter what, just "Firmware Update".
Any help?
Simonzi said:
I'm on T-Mobile, and I upgraded from a G3 to a G4. Ordered the G4 from T-Mobile yesterday, got it a few hours ago. Earlier today, I went through the restore process for the G3 using the LG Flash Tool (essentially following these steps here). That all went fine. Shortly after that, without thinking, and without closing the LG Flash Tool, I plugged my G4 into my computer to charge it. I got confused for a moment when I noticed it restarting. The Flash Tool had picked it up, and was setting up to push the G3 firmware to it. I panicked, and unplugged the phone from the computer, right as the phone went to the "Firmware Update" screen. Now, whenever I turn it on, it just goes straight to "Firmware Update". Won't enter recovery mode, etc, etc... No matter what, just "Firmware Update".
Any help?
Click to expand...
Click to collapse
You done goofed OP. i dont think g3 method works on G4 from what ive heard. can you try to hard reset the phone? or if not connect to computer and use the terminal or ADB(i think its called) to restart to boot to the recovery menu
Phurkus said:
You done goofed OP. i dont think g3 method works on G4 from what ive heard. can you try to hard reset the phone? or if not connect to computer and use the terminal or ADB(i think its called) to restart to boot to the recovery menu
Click to expand...
Click to collapse
Well, it has the same download mode as the G3 (which is unfortunately the only thing it will boot into), so technically I should be able to flash the firmware the same way, only problem with that is, because it's so new, the .dll and .tot files aren't available anywhere.
I tried a hard reset from the phone, didn't work. I couldn't get ADB to pick up the device (since it only boots into download mode), so I couldn't reboot into recovery via ADB
Took it into a T-Mobile store, they couldn't do anything, as expected. Notated my account, and said to call. New phone was ordered and being sent out to me, should have it Monday
Simonzi said:
Took it into a T-Mobile store, they couldn't do anything, as expected. Notated my account, and said to call. New phone was ordered and being sent out to me, should have it Monday
Click to expand...
Click to collapse
that's good news, no sad face required. last time i did something that crazy it was me, my laptop, and my phone in a room for 36 hours with every software tool available. lol.
Read carefully on http://www.androidbrick.com/
Hi,
Read carefully this web site for helping http://www.androidbrick.com/
http://www.androidbrick.com/unbrick-all-qualcomm-snapdragons-from-qualcomm-hs-usb-qdloader-9008-if-you-have-the-right-kind-of-rom/
Simonzi said:
Took it into a T-Mobile store, they couldn't do anything, as expected. Notated my account, and said to call. New phone was ordered and being sent out to me, should have it Monday
Click to expand...
Click to collapse
well at least your having it replaced. did the replacement cost anything?
sorry theres no fix to this right now. but i think its a little too early to mess with the G4
You have to restore you LG G4 to stock ROM.As your device is bricked you can't Flash via recovery.Download & Install LG Flash tool on your PC.Then download LG Stock Firmware according to your device model number.Then Flash via LG Flash tool.Below i share some helpful links
LG G4 Stock Firmware (Flashing Guide)-->>http://forum.xda-developers.com/g4/general/guide-lg-g4-stock-firmware-to-stock-kdz-t3107848
Another Guide-->>http://rootmygalaxy.net/unbrick-lg-g4-with-lg-flash-tool/
Hope this will help you and others facing this issue
Simonzi said:
Took it into a T-Mobile store, they couldn't do anything, as expected. Notated my account, and said to call. New phone was ordered and being sent out to me, should have it Monday
Click to expand...
Click to collapse
Actually there was no need to go to the store and get a new phone
You can easily flash G4 KDZs via LGUP, if you're stuck in download mode. Easiest game of your life. Sorry, that you had a lot of trouble, but keep in mind, that there's a way to get out of bootloops and such 99% of the time (well in fact 100% if it's a software problem). For future problems just check this thread. Easy to use, easy to get out of bootloops. Cheers
Follow_and_Feel said:
Actually there was no need to go to the store and get a new phone
You can easily flash G4 KDZs via LGUP, if you're stuck in download mode. Easiest game of your life. Sorry, that you had a lot of trouble, but keep in mind, that there's a way to get out of bootloops and such 99% of the time (well in fact 100% if it's a software problem). For future problems just check this thread. Easy to use, easy to get out of bootloops. Cheers
Click to expand...
Click to collapse
Thanks. But this was back in May, about 24 hours after it launched in the US. KDZ's weren't available then. Otherwise I would have done exactly what you said
Simonzi said:
Thanks. But this was back in May, about 24 hours after it launched in the US. KDZ's weren't available then. Otherwise I would have done exactly what you said
Click to expand...
Click to collapse
Oh sorry! I'm a bit late then :laugh: Didn't see the date.
I am new to this whole process. Last week I spent every night trying different roms on my E980 (AT&T) but none would work so I flashed back to stock 4.1.2 and rooted. Friday I made the mistake of doing an OTA upgrade to 4.4.2 but the phone continued to work fine until that night I tried to do a google search and the phone freaked out. Started vibrating and closing out screens like I was hitting the back button and then finally just went into a boot loop. Some times its the LG logo repeatedly and others it is the AT&T logo with the little jingle that plays. So I put the phone into download mode and tried to restore everything back to 4.1.2 using the flash tool but the flash tool will not pick up the phone being in d/l mode. Windows chimes like it should when its plugged in and the drivers are installed but the program will not start the software install to the phone.
What should I do?
Noggles10 said:
I am new to this whole process. Last week I spent every night trying different roms on my E980 (AT&T) but none would work so I flashed back to stock 4.1.2 and rooted. Friday I made the mistake of doing an OTA upgrade to 4.4.2 but the phone continued to work fine until that night I tried to do a google search and the phone freaked out. Started vibrating and closing out screens like I was hitting the back button and then finally just went into a boot loop. Some times its the LG logo repeatedly and others it is the AT&T logo with the little jingle that plays. So I put the phone into download mode and tried to restore everything back to 4.1.2 using the flash tool but the flash tool will not pick up the phone being in d/l mode. Windows chimes like it should when its plugged in and the drivers are installed but the program will not start the software install to the phone.
What should I do?
Click to expand...
Click to collapse
Someone please help me!
Noggles10 said:
Someone please help me!
Click to expand...
Click to collapse
Well I stumbled upon the solution by accident. Somehow the connection mode got changed to UART instead of USB. Once it was changed back the phone synced up perfectly and restored. The first time it errored out though for some reason but I retried and it worked fine.
Please excuse my ignorance but where do you change the mode to UART in the phone? I don't seem to find that option. Thanks in advance!
Sent from my iPhone using Tapatalk
Nttra said:
Please excuse my ignorance but where do you change the mode to UART in the phone? I don't seem to find that option. Thanks in advance!
Sent from my iPhone using Tapatalk
Click to expand...
Click to collapse
I don't know a whole lot but I do not believe there's a setting for to change that in the phone. That's why my phone wouldn't connect when the flash tool was set to sync via that method.
Good evening everyone,
I come to you guys with a very particular problem. The LG G4 in question is an H815T (Asian variant). Let me clarify right now, it was not bootlooping. This one was getting STUCK at the LG logo, it didn't restart to it multiple times, it just got stuck there one day after turning off by itself. It did go into the download mode, though.
It went into the first part of the recovery, but when you selected that you wanted to factory reset, it got stuck there. The only way to get it out of the logo or the stuck recovery was taking the battery out. Interestingly enough, the phone DID charge at the stuck logo, albeit not so much due to the screen being constantly on at full brightness.
An even more interesting fact... I managed to fix it! I flashed the KDZ corresponding to the latest LP for the H815T, after the process was done, it did bootloop. I found the YouTube video about flashing a certain file to deactivate most of the cores and said "what the hell have I got to lose?"
Flashed the KDZ and.... VOILA! It showed the Recovery Android doing its job at Format Resetting !
Something even crazier... The phone booted into AndroidLP, I was worried about the cores thing, but the phone seemed to work at full speed... I was surprised to run HWmonitor and notice that all of the cores were active. The phone was fully working!!! Or so I thought... Now I have TWO problems:
I cannot update to MM. If I try to update from the phone itself (because it does say there's a new version available) I go back to being stuck at the LG logo.
When I make a call the screen goes off... nothing I do will turn it on, and if the other person does not hang up, the phone will remain locked. However, if I plug in a headset everything works normally.
Is there anything I can do about these two problems? Please, leave your comments and questions, I think this phone is pretty weird and I found nothing else like it on YouTube or here on XDA.
Take care :good:!
Idk for the call but for the mm you could try using something like lg mobile update tool... Something like that.
Be warned cuz i dont know if it will bootloop.
PhillipDSX said:
Good evening everyone,
I come to you guys with a very particular problem. The LG G4 in question is an H815T (Asian variant). Let me clarify right now, it was not bootlooping. This one was getting STUCK at the LG logo, it didn't restart to it multiple times, it just got stuck there one day after turning off by itself. It did go into the download mode, though.
It went into the first part of the recovery, but when you selected that you wanted to factory reset, it got stuck there. The only way to get it out of the logo or the stuck recovery was taking the battery out. Interestingly enough, the phone DID charge at the stuck logo, albeit not so much due to the screen being constantly on at full brightness.
An even more interesting fact... I managed to fix it! I flashed the KDZ corresponding to the latest LP for the H815T, after the process was done, it did bootloop. I found the YouTube video about flashing a certain file to deactivate most of the cores and said "what the hell have I got to lose?"
Flashed the KDZ and.... VOILA! It showed the Recovery Android doing its job at Format Resetting !
Something even crazier... The phone booted into AndroidLP, I was worried about the cores thing, but the phone seemed to work at full speed... I was surprised to run HWmonitor and notice that all of the cores were active. The phone was fully working!!! Or so I thought... Now I have TWO problems:
I cannot update to MM. If I try to update from the phone itself (because it does say there's a new version available) I go back to being stuck at the LG logo.
When I make a call the screen goes off... nothing I do will turn it on, and if the other person does not hang up, the phone will remain locked. However, if I plug in a headset everything works normally.
Is there anything I can do about these two problems? Please, leave your comments and questions, I think this phone is pretty weird and I found nothing else like it on YouTube or here on XDA.
Take care :good:!
Click to expand...
Click to collapse
U already had flashed a firmware so check for sensors use an app called phone doctor plus download from playstore run its all sensors test see if it shows error and also is ur phone refutbished did u bought the phone new or used... U can also take it lg service center see what they have to say avout it
PhillipDSX said:
Good evening everyone,
I come to you guys with a very particular problem. The LG G4 in question is an H815T (Asian variant). Let me clarify right now, it was not bootlooping. This one was getting STUCK at the LG logo, it didn't restart to it multiple times, it just got stuck there one day after turning off by itself. It did go into the download mode, though.
It went into the first part of the recovery, but when you selected that you wanted to factory reset, it got stuck there. The only way to get it out of the logo or the stuck recovery was taking the battery out. Interestingly enough, the phone DID charge at the stuck logo, albeit not so much due to the screen being constantly on at full brightness.
An even more interesting fact... I managed to fix it! I flashed the KDZ corresponding to the latest LP for the H815T, after the process was done, it did bootloop. I found the YouTube video about flashing a certain file to deactivate most of the cores and said "what the hell have I got to lose?"
Flashed the KDZ and.... VOILA! It showed the Recovery Android doing its job at Format Resetting !
Something even crazier... The phone booted into AndroidLP, I was worried about the cores thing, but the phone seemed to work at full speed... I was surprised to run HWmonitor and notice that all of the cores were active. The phone was fully working!!! Or so I thought... Now I have TWO problems:
I cannot update to MM. If I try to update from the phone itself (because it does say there's a new version available) I go back to being stuck at the LG logo.
When I make a call the screen goes off... nothing I do will turn it on, and if the other person does not hang up, the phone will remain locked. However, if I plug in a headset everything works normally.
Is there anything I can do about these two problems? Please, leave your comments and questions, I think this phone is pretty weird and I found nothing else like it on YouTube or here on XDA.
Take care :good:!
Click to expand...
Click to collapse
I also got the same problem! How do you managed to flash KDZ when the phone is stuck at LG logo?
jinderation said:
U already had flashed a firmware so check for sensors use an app called phone doctor plus download from playstore run its all sensors test see if it shows error and also is ur phone refutbished did u bought the phone new or used... U can also take it lg service center see what they have to say avout it
Click to expand...
Click to collapse
Got it! The sensors thing was definitely it for the screen problem. I also read this is very common with many screen protectors in 5.1.
Do you have any ideas regarding the issue updating to MM?
willy792003 said:
I also got the same problem! How do you managed to flash KDZ when the phone is stuck at LG logo?
Click to expand...
Click to collapse
All good, Willy! Even is you're stuck at the LG logo, take your battery out, or it back in BUT DON'T TURN IT ON... Instead, try to access DOWNLOAD MODE. If you're able to do it, you can flash any KDZ you want, but be careful.
Sent from my GT-N8010 using Tapatalk
Yes ur right using a heavy screen protector will block all the sensors so ya try removing it... No issues in MM u can try OTA through wifi
PhillipDSX said:
Got it! The sensors thing was definitely it for the screen problem. I also read this is very common with many screen protectors in 5.1.
Do you have any ideas regarding the issue updating to MM?
All good, Willy! Even is you're stuck at the LG logo, take your battery out, or it back in BUT DON'T TURN IT ON... Instead, try to access DOWNLOAD MODE. If you're able to do it, you can flash any KDZ you want, but be careful.
Sent from my GT-N8010 using Tapatalk
Click to expand...
Click to collapse
your screen protector had the sensors covered . you need one with the cut out in the speaker and sensors..
So my mom had an LG G3 D850 from at&t. was totally fine, then she updated whatever she had to 6.0 and it started bootlooping. Tried the LG Flash tool with a tot stock firmware. Went through the whole process got the blue screen with the red 3, it restarted, kept bootlooping. Tried it again but then it got stuck on 5% for like 4 hours, unplugged it and now no matter what i do i cant get into download mode. It shows the LG screen then goes straight to firmware update (even if i dont hold vol up) and it says 910K Bxx QEM (the xx changes) I was able to get into recovery mode, recovered it. same thing. Im losing my mind a little bit here so any advice, or pointing me to a tutorial would be greatly appreciated. Ive looked all over the internet and cant find anything helpful apparently the qualcomm thing where you short the motherboard doesnt work for this phone either?
*flips desk*
If it is under warranty .send your phone to at&t to get it fixed.
Its not
Jahanzaibawan said:
If it is under warranty .send your phone to at&t to get it fixed.
Click to expand...
Click to collapse
warranty expired 6 months ago
evangelion117 said:
warranty expired 6 months ago
Click to expand...
Click to collapse
i have same
Qualcmomm method you are describing is just to bring your phone into download mode. I have done this to my brother's g3. You have to flash using LG flashtool using different settings and then hard reset your phone. If it doesn't solve your problem.try to replace battery and then use custom rom.
tried that
Jahanzaibawan said:
Qualcmomm method you are describing is just to bring your phone into download mode. I have done this to my brother's g3. You have to flash using LG flashtool using different settings and then hard reset your phone. If it doesn't solve your problem.try to replace battery and then use custom rom.
Click to expand...
Click to collapse
no matter what settings i set LG flash tool to it doesnt recognize the phone. and no matter what i do the phone jumps to the firmware update screen, it skips the download mode screen. I have two batteries and ive repeatedly switched them back and forth :/ even after reseting the phone with factory reset it goes back go the firmware update screen
evangelion117 said:
no matter what settings i set LG flash tool to it doesnt recognize the phone. and no matter what i do the phone jumps to the firmware update screen, it skips the download mode screen. I have two batteries and ive repeatedly switched them back and forth :/ even after reseting the phone with factory reset it goes back go the firmware update screen
Click to expand...
Click to collapse
Firmware update screen is the download mode.
Just follow the guide of hyelton to flash your phone.follow steps properly.
still bootloops :/
Jahanzaibawan said:
Firmware update screen is the download mode.
Just follow the guide of hyelton to flash your phone.follow steps properly.
Click to expand...
Click to collapse
totally forgot to switch to com41, did everything exactly like that. got to the red 3, restarted it, and it still bootloops. i guess ill try a custom rom cause this stock one isnt working.
apparently cant do custom roms either, I got it to boot the the set up screen for 5seconds befores it crashed so i guess im throwing it away cause im sick of looking at it.
evangelion117 said:
apparently cant do custom roms either, I got it to boot the the set up screen for 5seconds befores it crashed so i guess im throwing it away cause im sick of looking at it.
Click to expand...
Click to collapse
Try LG PC Suite go to option update error recovery it will download the stock rom flash it dont worry it will take some time so be patient also what happened is when ur g3 wasnt fully updated meaning it got stuck or turned off when updating
.hit like if its helps