Hello,
Did a software update to my LG G4 H815 and now my phone isn't working. When I turn it on, the blue notification light starts blinking and I can hear the LG welcome screen, but screen isn't turning on. No sight of screen working, even when trying to access hard reset menu. Any solutions?
Best wishes,
Siim
After upgrading the first full boot can take up to several minutes which should not be interrupted. If you had waited a long time (20 minutes should be more then enough I think) and it is still black screen you should connect your phone to a pc. Install adb drivers if you haven't already and exec:
adb logcat
The other think to check is can you go into the recovery screen? Do you have twrp or cwm installed?
After upgrading, I experienced the same issue. Took it to service center (still in warranty). They said they changed the power chip. Excellent now, upgraded to MM. They load software on their power chip too.
Sent from my LG-H818 using XDA-Developers mobile app
I updated the phone with LG Bridge... No recoveries were installed. Took the phone to service center. Hopefully get it working again...
Related
Hello,
Today, while I was using my phone, it restarted itself and has been stuck at a boot loop almost entirely since then. It has successfully booted up 2-3 times but will usually restart itself within 30-45 seconds of booting and then will be stuck in a boot loop again. When it has started up its usually after it has been bootlooping for a while. I have an H811 , I'm rooted and using xTreme Rom v2.0. I have had occasional random reboots here and there before but the phone always booted right up again without any issues. I haven't done anything with root/recovery since early September.
I've tried doing a factory hard reset without any luck. My phone booted up after I tried the hard reset and it was like the reset didn't happen. I can't boot into TWRP. I can boot into download mode and I tried to reset using kdz. It got to 100% but the the phone restarts and is back in the boot loop (then the lg flash tool gets an error and force quits). I've tried removing my sd and sim cards, I've tried swapping to a different battery, I've tried leaving the battyer out and letting the phone cool down. Nothing is working. I have noticed that when the phone is going to boot up correctly the full LG animation plays. When the phone is going to boot loop I only get a static LG Powered by android image.
Since I tried and failed to reset to stock using kdz, the phone no longer boots up past the LG screen. I've redownloaded the kdz file and tried to reset again with the same results. When I have it in download mode Windows recognizes the phone but it says there's an issue with the MTP driver. I've reinstalled the drivers and I still get that the MTP function isn't working correctly.
Any suggestions?
Hey man u r just having my problem. There is a thread already for this http://forum.xda-developers.com/showthread.php?t=3233160
Did u do CSE flash? If not, try to connect via adb.
Sent from my LG-H815 using Tapatalk
I am having the same issue. I have T-Mobile G4 that is NOT rooted. I bought it on release day. I too would get random reboots, particularly after the recent security update. I also noticed that the operating temperature was really high, a lot lately. I thought it was a rogue app (clean master). Anyway, I updated a few apps and installed a few watch faces. Suddenly, my phone was drained prematurely. Plugged it into a quick charge charger when all the fun begins. Early on it would boot to the home screen but would reboot a minute or two later. Then it stopped booting to home. On two occasions that I caught, it was starting up like a firmware update just installed with the "Android is starting 1 of 143 apps" type of line. After seeing that and still not getting to home, I figured I might as well factory reset it. Well I was amazed to discover that a factory reset yields the same boot loop. All I get is the LG logo.
Defeated. I go to my local TMo retailer where I bought the phone only to find out that I have to wait for delivery of a replacement. I'm in Jump btw. I did notice that when the phone will boot to home screen for whatever length of time, the LED would work. The LED does not work during a boot loop. My research on this issue uncovered an alarming trend on the Internet. No solution other than replacement. No cause has been identified either. Without proof, these are my top suspicions: Quick charge, 128G SD, apps moved to SD. My hunch is quick charge. All of my chargers are Qualcomm certified quick chargers. and I use them 95% of the time. I would hate to add LG to my list of boycotted Android vendors under Samsung.
IrieBro said:
I am having the same issue. I have T-Mobile G4 that is NOT rooted. I bought it on release day. I too would get random reboots, particularly after the recent security update. I also noticed that the operating temperature was really high, a lot lately. I thought it was a rogue app (clean master). Anyway, I updated a few apps and installed a few watch faces. Suddenly, my phone was drained prematurely. Plugged it into a quick charge charger when all the fun begins. Early on it would boot to the home screen but would reboot a minute or two later. Then it stopped booting to home. On two occasions that I caught, it was starting up like a firmware update just installed with the "Android is starting 1 of 143 apps" type of line. After seeing that and still not getting to home, I figured I might as well factory reset it. Well I was amazed to discover that a factory reset yields the same boot loop. All I get is the LG logo.
Defeated. I go to my local TMo retailer where I bought the phone only to find out that I have to wait for delivery of a replacement. I'm in Jump btw. I did notice that when the phone will boot to home screen for whatever length of time, the LED would work. The LED does not work during a boot loop. My research on this issue uncovered an alarming trend on the Internet. No solution other than replacement. No cause has been identified either. Without proof, these are my top suspicions: Quick charge, 128G SD, apps moved to SD. My hunch is quick charge. All of my chargers are Qualcomm certified quick chargers. and I use them 95% of the time. I would hate to add LG to my list of boycotted Android vendors under Samsung.
Click to expand...
Click to collapse
Yah mine was also on charge while it happened. But it was on LG provided charger.
nipun1110 said:
Hey man u r just having my problem. There is a thread already for this http://forum.xda-developers.com/showthread.php?t=3233160
Did u do CSE flash? If not, try to connect via adb.
Sent from my LG-H815 using Tapatalk
Click to expand...
Click to collapse
Thanks. I'll try reposting this there. I did use CSE flash. Oddly enough it booted up once this morning for about a minute then got stuck and rebooted. Now its back in the boot loop.
IrieBro said:
I am having the same issue. I have T-Mobile G4 that is NOT rooted. I bought it on release day. I too would get random reboots, particularly after the recent security update. I also noticed that the operating temperature was really high, a lot lately. I thought it was a rogue app (clean master). Anyway, I updated a few apps and installed a few watch faces. Suddenly, my phone was drained prematurely. Plugged it into a quick charge charger when all the fun begins. Early on it would boot to the home screen but would reboot a minute or two later. Then it stopped booting to home. On two occasions that I caught, it was starting up like a firmware update just installed with the "Android is starting 1 of 143 apps" type of line. After seeing that and still not getting to home, I figured I might as well factory reset it. Well I was amazed to discover that a factory reset yields the same boot loop. All I get is the LG logo.
Defeated. I go to my local TMo retailer where I bought the phone only to find out that I have to wait for delivery of a replacement. I'm in Jump btw. I did notice that when the phone will boot to home screen for whatever length of time, the LED would work. The LED does not work during a boot loop. My research on this issue uncovered an alarming trend on the Internet. No solution other than replacement. No cause has been identified either. Without proof, these are my top suspicions: Quick charge, 128G SD, apps moved to SD. My hunch is quick charge. All of my chargers are Qualcomm certified quick chargers. and I use them 95% of the time. I would hate to add LG to my list of boycotted Android vendors under Samsung.
Click to expand...
Click to collapse
Sounds like the boot loop issue is a decent sized one- quite a few others, from different variants, having all having a similar issue. For me I was walking with my phone checking facebook when it restarted and got stuck. I definitely notice the LED issue too. I'm not on jump but will likely go into T-Mobile today and see what they tell me.
HappyPessimist said:
Sounds like the boot loop issue is a decent sized one- quite a few others, from different variants, having all having a similar issue. For me I was walking with my phone checking facebook when it restarted and got stuck. I definitely notice the LED issue too. I'm not on jump but will likely go into T-Mobile today and see what they tell me.
Click to expand...
Click to collapse
They will give u a replacement. that's all. but noone will say what's causing it.
Sent from my LG-H815 using Tapatalk
HappyPessimist said:
Thanks. I'll try reposting this there. I did use CSE flash. Oddly enough it booted up once this morning for about a minute then got stuck and rebooted. Now its back in the boot loop.
Click to expand...
Click to collapse
Exactly what happened to me. now after CSE flash of KDZ, it won't start at all. just boot looping. also after hard reset.
I bought my phone here in Singapore from Singtel when the phone first dropped so its a 815 SEA model.
Updated to marshmallow some time ago and everything seemed fine.
I have no idea what happened a few days ago after bringing my phone out of my pocket, it would not turn on anymore.
Now here is the issues.
1. Phone will go to reset mode to do a hard reset then you go through the prompts, it goes to little android guy following over with his guts hanging out and then it dies
2. I turn the phone on normally, it gets to LG, Life is Good then does and restarts a few times then dies
3. Went to download mode and that stays on for 15 seconds or so then dies and sometimes will go back to LG Life is Good and then dies
I downloaded the drivers for the phone, it seems to pick it up since the computer makes the noise that it is picking it up but LG Bridge and LG UP do not recognize the device.
No idea what to do at this point.
Thank you for any help.
Any luck?
Sent from my LG-H631 using Tapatalk
This is embarrassing, but I was trying to install Pokemon Go on my G4 and the phone got really hot and rebooted. It never came back. Just went into a boot loop. I found instructions online on how to do a master reset with the power button and volume down letting it up briefly when seeing the logo and then pressing it again and letting it boot. I answered the question about deleting all user data and then answered it again. It said it was erasing data, then froze for a few hours at "optimizing apps" on one of the steps while I left it plugged in. I eventually pulled the battery to get it to respond again and now it just shows the LG logo and then goes dark. While dark it doesn't respond to button presses or let me try again to power it on, etc.
Any chance of me getting this phone working again? Is there anything else I can try aside from the master reset that I've already tried?
Hello if you look under the battery and your serial number starts with 505 or close its dead.
Sent from my LG-H815 using XDA-Developers mobile app
Eudmin said:
This is embarrassing, but I was trying to install Pokemon Go on my G4 and the phone got really hot and rebooted. It never came back. Just went into a boot loop. I found instructions online on how to do a master reset with the power button and volume down letting it up briefly when seeing the logo and then pressing it again and letting it boot. I answered the question about deleting all user data and then answered it again. It said it was erasing data, then froze for a few hours at "optimizing apps" on one of the steps while I left it plugged in. I eventually pulled the battery to get it to respond again and now it just shows the LG logo and then goes dark. While dark it doesn't respond to button presses or let me try again to power it on, etc.
Any chance of me getting this phone working again? Is there anything else I can try aside from the master reset that I've already tried?
Click to expand...
Click to collapse
send it back for reapir.
hi, mine was 509. It died 2 weeks ago, showing only "LG life is good" if trying to boot it. No way into recovery. (did boot one time very slowly to lockscreen before the definitive death)
This seems to be the same for you.... dead CPU I suppose. I'm still waiting for the repair.
(curious about the 505 asserted here, since mine was higher)
Hello the first 3 digits of serial number indicate date of manufacture, and the early ones have a manufacturing defect.
Sent from my LG-H815 using XDA-Developers mobile app
Hello,
mine was 510 and died on me 4 weeks ago, (boot loop with only LG logo) as it died from overheating (or at least was very hot when die occured), I tried to cool it and it was "succesful"
It put it in the freezer for some time and then could boot it on TWRP and make a full backup (I left it in the freezer the whole time)!
boot at normal temp lead to black screen in 10-15secs. I sent it back for repair (motherboard replacement was made in less than 1 week by Lg France), I am now waiting the answer from Lg developer to unlock the bootloader again.
I guess you can at least try and see if you can have the same result as me.
Marc
G4 bricked, possibility of resurrection?
Click to expand...
Click to collapse
No.
Hello all, this happened recently today.
My phone just "shut off" into a dark screen and pressing/holding any buttons does absolutely nothing. I've plugged out the battery and tried to power it on again but it would do the boot screen then straight into a black screen.
I've also tried different batteries but that had no affect either.
The phone does not connect to my computer also.
Currently about over 2 years old, 5.0.1 i believe running the dragon root (i forgot the name but the post had a purple dragon i believe?)
Have you tried Download Mode?? If phone shows the LG Logo then I guess you have a change to enter download mode and recovery with a TOT or KDZ
PonchosoftX said:
Have you tried Download Mode?? If phone shows the LG Logo then I guess you have a change to enter download mode and recovery with a TOT or KDZ
Click to expand...
Click to collapse
I've tried going into download mode, but it went straight into the blank screen again. Would it still be in download mode?
the problem happen to the hardware. i think its Emmc card.
https://www.youtube.com/watch?v=gAUkXLR7eQI
Try that
Maybe it was a short circuit. Has your phone reached high temperatures to overheat? Have you tried replacing some parts or sending it to a specialist? Your problem is probably a hardware error.
According to you say you can not enter recovery, download mode, or load, based on all this an old g3 that I had, had the same defects and take it to the technician and told me that the motherboard had melted in some sectors, can Be that it happened to you.
NguyenTendo said:
Hello all, this happened recently today.
My phone just "shut off" into a dark screen and pressing/holding any buttons does absolutely nothing. I've plugged out the battery and tried to power it on again but it would do the boot screen then straight into a black screen.
I've also tried different batteries but that had no affect either.
The phone does not connect to my computer also.
Currently about over 2 years old, 5.0.1 i believe running the dragon root (i forgot the name but the post had a purple dragon i believe?)
Click to expand...
Click to collapse
i have exactly the same problem today 9th june. this is the damned LG hardware issue. this the 3rd LG G3 where it happened.
LG never again!!
Hello,
My wife's Sony Xperia XZ2 Compact with model number H8324 has an issue with booting or maybe the launcher getting stuck in a loop after getting to the lock screen for a split second.
The phone seems to boot like normal and gets to the lock screen, we are even able to punch in one or two digits of the 4 digit pass code. Then it goes into a loop of the notification bar and back button flickering. From then on the phone is not responding except for the power button which brings up the normal "Turn off, Reboot, and Lockdown" menu. The issue just started out of nowhere yesterday morning and we haven't been able to fix it yet. We haven't done any rooting or custom rom flashing, it's running the official Sony software but it's out of warranty.
Here's a video showing the issue. The video shows the whole boot process but the link takes you to the last part after the logos.
We would love to get some files off it so if there is a way anyone can help us with that we'd prefer it over a hard reset.
Things we've already tried
Turning the phone off and on again
Unlocking the phone in the split second the lock screen works, this is just too short to swipe up and then put in four digits.
Rebooting the phone
Booting while charging
Booting into safe mode (this has the same issue)
Connecting the phone with USB to a pc, the phone is recognized by Windows, but it doesn't share it's filesystem with Windows.
Connecting the ADB to it, alas usb debugging is not yet enabled on the phone
Trying to get into recovery mode, we haven't been able to get into the recovery menu. Googling seems to indicate it might be holding volume up + power button when the phone is off but then it doesn't seem to do anything at all.
We're currently trying to run out the battery of the phone to see if that will resolve the issue on it's own.
If anyone has any idea, we would love to hear it.
no solution from me. But I have exact same problem and tried same things. Yesterday I did not used the phone. Day before shut down, today tunred it on and it starts with the issue. Strange it happens to both of us at the same time frame. removing sims did not help either.
By holding down "volume down+power" I was able to boot in safe mode but the same issue occur; no way to get into the phone.
Yeah that's weird. Draining the battery did nothing for us. There was not much data that we wanted to extract from the phone. Most of it was contacts and an emulated Pokémon game save file. So my wife eventually reflashed the OS with Xperia companion which did actually resolve the issue of not being able to use the phone.
I faced the same problem today ,i have xz2 , yesterday it was 24% and today i found it 0% so I put it in the charger ,but I faced this problem