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So I have an H815 and I was running the 7HD custom rom. I never had problems with my G4 until yesterday. I was at work and I got on the facebook app, then the phone froze. It then powered down and I got stuck in an infinite bootloop. I flashed a stock KDZ and still nothing. The phone turns on and is able to fully get into download mode. It does not do anything, it gets interrupted doing whatever it is doing and just powers of randomly and reboots. It rarely gets into the Android OS. I have done a regular flash and an emergency flash and still no luck. It's safe to say all my files are erased. And now it looks like I finally have a paperweight. Any help would be nice.
This happened to me on my H811. I suspected a storage failure in my case, as I couldn't do anything to help the phone, and it would always get to some point of loading before quitting on me.
Sent from my LG-H811 using Tapatalk
that sucks...
and with LG warranty removal good luck for telling them that this happens DURING normal usage and not during flash or something else
That happened to me on another phone. The problem was the eMMC (Flash Memory) died.
I was able to get a warranty replacement quite quickly by contacting the T-Mobile T-Force on Facebook. I'd recommend doing the same so you can have a fresh device in about 2 days.
This is the international version though. I do have T-Mobile service, but I dont know if they would replace a phone that I never bought from them in the first place. I might just have to get a new one.
I'm guessing it's the flash storage that died on my H815T (after flashing a backup I made of the system partition). I hope this doesn't indicate a problem with the durability of the G4's internal storage.
I bricked my rooted g4 and lg fixed it with a brand new phone no questions asked. Got lucky ?
Sent from my LG-H812 using XDA Premium HD app
How would I reach them? I remember I tried to ge a warranty replacement but I never got a reply..How did you do it?
XDA,
I just got into a bootloop while on the Facebook App and I pressed the home button. I read that it happens to random people, but I want to make sure that I am safe.
I rooted roughly 5 months ago, when I got this phone and I've never had an issue.
What are my options? If I call VZ/LG will they accept my rooted phone? Or can I fix this bootloop? Will using this method http://forum.xda-developers.com/g4/general/guide-lg-g4-stock-firmware-to-stock-kdz-t3107848 help me ?
Thank you,
-J
EDIT: My phone booted up, the apps were optimizing, but then it just rebooted back to the LG screen and now it's stuck there.
[removed by dentralp]
dentralp said:
Don't want to do fear mongering just keep people in the know...
If you are stuck on LG screen you could have the same issue as;
http://forum.xda-developers.com/g4/help/lg-g4-stuck-bootloop-t3268734
I had full bootloops apart from when MM was installed, it just sat there on the LG logo. Could be that your on MM with the issue?
I have tried LG Bridge, Flash Tool and LG Up with various different roms, both LP and MM nothing worked.
Mine is also Rooted, with the bootloader unlocked. LG UK have been sat with my phone for over a month - hopefully I will find out soon if they have fixed it using the warranty - but even if they do, mine is with LGUK not LGUS ...
Think what I am trying to say is, try all the methods and if it doesnt work send it for RMA with your fingers crossed :/
Click to expand...
Click to collapse
Just so I understand you, I basically have to RMA my phone? All the other options seem like they resulted in a bootloop. And RMA I'm assuming you mean using warranty?
And I'm not on MM.
Just out of curiosity, would the fact that I rooted my phone disqualify me for using mywarranty?
I guess you rooted with injected system.img. If you can go to download mode you could write the original system.img back, so then you are not rooted. Or you could write a KDZ file in LGUP.
ObiDanKenobi said:
I guess you rooted with injected system.img. If you can go to download mode you could write the original system.img back, so then you are not rooted. Or you could write a KDZ file in LGUP.
Click to expand...
Click to collapse
As far as I'm aware, simply restoring an original unrooted system.img backup will still show "Modified" in the download mode status, once it's been rooted. The only way to clear that status is by flashing the KDZ. (You can still keep your personal data with that option though.)
iamjerry123 said:
XDA,
I just got into a bootloop while on the Facebook App and I pressed the home button. I read that it happens to random people, but I want to make sure that I am safe.
I rooted roughly 5 months ago, when I got this phone and I've never had an issue.
What are my options? If I call VZ/LG will they accept my rooted phone? Or can I fix this bootloop? Will using this method http://forum.xda-developers.com/g4/general/guide-lg-g4-stock-firmware-to-stock-kdz-t3107848 help me ?
Thank you,
-J
EDIT: My phone booted up, the apps were optimizing, but then it just rebooted back to the LG screen and now it's stuck there.
Click to expand...
Click to collapse
Based on what I've read in the main bootloop thread, the bootloop issue is a hardware problem that requires the phone motherboard to be replaced so I don't think they will be able to detect the root during the RMA process:
...
I have received confirmation from LG that series from May, June, July and August are afflicted by this issue and that the revision number doesn't matter. They also said that it is not necessary that all phones in these series will fail, but that under certain circumstances (not disclosed to me) they will start producing the bootloop issue which is h/w bound.
...
Update: It seems not all bootloops are due to deffective motherboard as on some phones they were able to detect the root and refused the repair under warranty.
So maybe for some G4's stuck in bootloop there might be a solution to be soft repaired.
I saw this in another thread, can you try this?:
...
Using DL mode (device off -> press and hold volume up while(!) connecting to PC) and LGUP you should be able to push any KDZ on your device and get out of the boot loop.
...
I don't have the bootloop problem so I can't test it but it might.
What's the build date of your G4 (between May-August 2015?)? What are the 1st 3 digits of your phone's S/N?
If you root any phone you automatically void your warranty. There's no exception to this and I actually understand why they do that because most people don't need to be rooting their phones lol but if u find a KDZ you're str8, use the flashtool and you'll never get into a permanent bootloop and you can use your warranty. But most likely something you modified or something another app was doing caused the bootloop not a hardware issue. Also it'd probably the last thing you ever even thought that caused it lol
Sent from my VS986 using Tapatalk
Have you tried a hard factory reset? Usually helps
Hey guys my verizon g4 is stuck in bootloop and im not rooted, i cant get the past the lg boot screen, it stays on their for around 20 seconds goes black and back to lg screen.
I can get into recovery but none of the options do anything ive tried safe mode, usb debug mode i even tried factory reset they all just go back to the lg screen.
I was just watching a video on facebook when it froze restarted and now im stuck, ive been restarting it all day and i was able to get it to boot up twice but it froze again within seconds any help is appreciated
it might be the defective motherboard issue that people are having. you could try reflashing the system, but if that doesn't work you probably need a new motherboard/phone
Not an answer, but an experience.
I have an HTC ONE M8, VZW. I s-offed it and rooted it right when I got it. I began adding some of my google apps and it did what your G4 is doing, stuck on VZW screen.
Since I was s-off I was able to get a recovery in and ready. I was able to get a custom rom onto the phones external sd. I flashed it with the recovery and the flash took, no more vzw screen lock up.
Your experience makes me wonder what VZW is doing to force bootloops on unlocked or rooted phones with their retail products. Paranoid maybe, but I can see VZW deliberately adding code to stick it to rooted users.....................................I say this still knowing that many have rooted the current run of devices without issues...........................
luck
i read about the problems with the motherboard going bad, im assuming thats what happened to mine. Lg sent me a replacement under warranty
Update!
i called verizon they sending me a replacement. just to let you know i flashed 13B KDZ but the bootloop was still there i let my phone on and finally turned on quickly i did a factory reset and booted up normal and its working again. still im gonna send it back. just sharing my experience maybe for other people might work too.
killa408shark said:
Update!
i called verizon they sending me a replacement. just to let you know i flashed 13B KDZ but the bootloop was still there i let my phone on and finally turned on quickly i did a factory reset and booted up normal and its working again. still im gonna send it back. just sharing my experience maybe for other people might work too.
Click to expand...
Click to collapse
What is the 13B KDZ and how did you flash it? Im having same exact issue.
My G4 tanked over the weekend. I was browsing news and the phone locked up, then it shut off and turned back on. It just bootloops now. If I stick it in the freeze for a few minutes, sometimes it will boot to the OS where it starts to optimize the apps. It will get through about 20 before it shuts off and starts the bootloop process again. I haven't even been able to get the download mode to stay on, and when it does enter download mode, it is not detected by the computer. I think my problem is the motherboard. I'm just hoping that they aren't able to figure out I had it rooted!
I'm still waiting to hear back from Verizon about a replacement.
Does anyone have any ideas on how I can flash a stock rom back on this thing to try to save my tail? I am betting not since the phone won't stay on long enough to even flash the rom.
b3y0ndd34th said:
My G4 tanked over the weekend. I was browsing news and the phone locked up, then it shut off and turned back on. It just bootloops now. If I stick it in the freeze for a few minutes, sometimes it will boot to the OS where it starts to optimize the apps. It will get through about 20 before it shuts off and starts the bootloop process again. I haven't even been able to get the download mode to stay on, and when it does enter download mode, it is not detected by the computer. I think my problem is the motherboard. I'm just hoping that they aren't able to figure out I had it rooted!
I'm still waiting to hear back from Verizon about a replacement.
Does anyone have any ideas on how I can flash a stock rom back on this thing to try to save my tail? I am betting not since the phone won't stay on long enough to even flash the rom.
Click to expand...
Click to collapse
+
My phone was rooted and got into the bootloop also and I sent it in as is and nothing happened. So I think it would be fine to send it without the stock rom.
mainlygreen said:
+
My phone was rooted and got into the bootloop also and I sent it in as is and nothing happened. So I think it would be fine to send it without the stock rom.
Click to expand...
Click to collapse
Thank you for this information, this makes me feel a little better!
The replacement is already in the mail!
same issue of mine I was out then it cut off & wouldn't come back on but now it charges up & makes it to the boot screen
b3y0ndd34th said:
Thank you for this information, this makes me feel a little better!
The replacement is already in the mail!
Click to expand...
Click to collapse
did you send the faulty unit first or they are sending it on your complaint. I am outside US and my G4 got bootloop issue n i was wondering how to get the replacement through somebody as i wont be coming for another year.
thanks
bhuvesh89 said:
did you send the faulty unit first or they are sending it on your complaint. I am outside US and my G4 got bootloop issue n i was wondering how to get the replacement through somebody as i wont be coming for another year.
thanks
Click to expand...
Click to collapse
They mailed me a new one, no battery, no back. I put my battery, sim card, sd card, and back on the new phone, fired it up. Rolled it back, rooted it, then I mailed the old one back.
Personally, I love this phone, but I think I will be getting a nexus next.
Hi,
I've searched over xda and google before but haven't found anything relevant so I've decided to post my own problem.
My G4 freezed unexpectedly while listening to music, I had to remove the battery to put it off.
But it never passed the LG logo again.
So, i've been stucked on this LG logo, looking for an answer and found about this hardware issue but I'm not certain to get the same error.
It's not a bootloop (even if I sometimes got stuck in bootloop while trying everything to revive my phone), I have been able to get to the download mode and TWRP (which I don't have anymore because I went back to stock using LGUP and LG bridge), even though I hardly get to the download mode now (I sometimes manage to do it though). I've also managed to save my data when I've managed to enter TWRP (plug in, remove battery, push volume down + power while putting battery in) which, people with hardware issue haven't, as far as I know.
I've tried everything I could and wouldn't even be able to describe it all.
Do you guys know how I could be sure if it's hardware or software related ?
Last try: update via Lg Bridge, succeed but still stuck on LG screen.
Thanks a lot !
Flash a lollipop kdz via LGUP, then try the ILAPO (works only with lollipop, no marshmellow) metod, there is a thread on xda.
There is a video on youtube too
alinnsts said:
Flash a lollipop kdz via LGUP, then try the ILAPO (works only with lollipop, no marshmellow) metod, there is a thread on xda.
There is a video on youtube too
Click to expand...
Click to collapse
Thanks, I'm going to try this and let you know !
I gave a look on what you've suggested, but is that going to let me use the phone or only backup ?
From what I understood (and I might be wrong), this only allows to backup because the phone would be worthless...
bbsugar said:
I gave a look on what you've suggested, but is that going to let me use the phone or only backup ?
From what I understood (and I might be wrong), this only allows to backup because the phone would be worthless...
Click to expand...
Click to collapse
You'll be abble to use the phone, but it would be slower duo to the fact that with ILAPO you disable the "2 more powerfull" cpu cores... this metod let only 1 core active from the other 4, if you want to use the other two you have to gain root permissions and install an .apk to reactive the other 3. It's a litle triky but better than nothing I guess ��
PS: if you dont want to deal with all this bulls**it send it to LG
Same problem
This morning my Lg G4 also got stuck in boot Lg screen. Did you manage to fix your issue or got the data backup ?
sometimes flashing stock LP firmware fix it.. sometimes you must send it back to LG for repair..
localgh0st said:
This morning my Lg G4 also got stuck in boot Lg screen. Did you manage to fix your issue or got the data backup ?
Click to expand...
Click to collapse
I managed to backup, it's a weird trick and you need to have TWRP installed I guess:
- Remove the battery
- Plug your phone (I used my laptop but I'm guessing it also work directly from the charger)
- Push volume down + power
- Insert battery holding those buttons
I managed to enter TWRP and backup with this.
It didn't work at first, I had to try it several times.
I also read you have to keep holding volume down + power until the phone reboot itself once, and then you get access to TWRP but I tried so many times differently I don't remember which one worked best. Anyway, it worked for me that way.
I didn't fix the issue and I sent it to LG... I'm so frustrated, it's been 10 years I'm into this stuff and I always managed to fix everything
Hi guys,
So my G4 just came back from LG, they replaced the motherboard and that's it... A bit disappointed to not having been able to fix it myself but at least, it worked.
I didn't have to pay anything since it was a hardware defect, LG took care of it.
Thanks for those who tried to help, I hope this post would be useful for some with the same issue.
bbsugar said:
Hi guys,
So my G4 just came back from LG, they replaced the motherboard and that's it... A bit disappointed to not having been able to fix it myself but at least, it worked.
I didn't have to pay anything since it was a hardware defect, LG took care of it.
Thanks for those who tried to help, I hope this post would be useful for some with the same issue.
Click to expand...
Click to collapse
I'm having this same issue out of the blue. Is your serial number one of the infamous "before 509" ones? I'm on TMo with the H811, so it may not be similar at all....but I'm at my wits end. I've never had a spontaneous boot loop happen to me before now. It was always something I'd done.
Dramatdude said:
I'm having this same issue out of the blue. Is your serial number one of the infamous "before 509" ones? I'm on TMo with the H811, so it may not be similar at all....but I'm at my wits end. I've never had a spontaneous boot loop happen to me before now. It was always something I'd done.
Click to expand...
Click to collapse
Indeed, my serial number was 505 something.
I've been there too, if it's spontaneous, it must be this hardware defect...
bbsugar said:
Indeed, my serial number was 505 something.
I've been there too, if it's spontaneous, it must be this hardware defect...
Click to expand...
Click to collapse
Interesting... Especially since mine was a 509 or something. I guess they missed some units. Oh well, I just JUMP'ed early with my TMo plan to the G5. That was my second G4 after a similar issue 13 days into owning the first one back in November. Having your phone spontaneously die is quite a fun way to spend your anniversary -____-. I wasn't about to give that model a 3rd try. Thanks for replying.
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..