First of all, I have not rooted my phone or anything. Just kept in clean and didn't do anything strange with it. I always used the protection cover for my phone and never even dropt it.
The current situation is that I got the phone from someone else, so no guarantee.
One day I had a call and after I hung up the phone went dead. I just thought it went off so I tried to reboot but it didn't came any further than just some backlights. After several tries, I used another battery, I had the phone on the loader, both just didn't help.
Does anyone have any idea what to do next?
Great thanks.
take it to your service provider, but since you didnt buy it from the store, they might not be able to help you man...
I bought an unlocked h910 on ebay a little while ago and rooted it the day I got it by following the typical root guide. Everything seemed to go smoothly with rooting, and I have SuperSU and the stock rom. I have had terrible connection problems ever since rooting. I never actually used the phone with a sim before rooting it (my other device takes micro sim and I didn't have an adapter, do I got a nano and activated over the phone after rooting). As soon as I put the activated nano sim in, the phone would lock onto a tower and continuously drop and say "No service", then lock again, repeat repeat.
After a little while, the phone magically fixed itself and was working OK for the rest of the day. Then the next day, I started getting the No service problem again. I tried lineageOS with the werewolf kernel, but that didn't quite work out due to crashes. So, I figured I would do the typical restore procedure from this thread:
https://forum.xda-developers.com/v20/how-to/stock-att-h910-stock-recovery-boot-image-t3528060
That went through OK, and I figured everything was fixed, but then I started getting the No service problem again after a little while :crying::crying::crying:. At that point, I decided to do some reading and it appears that some folks with unrooted phones have had connection issues on the v20 that they got warranty replacements for. I am concerned that there may be a hardware problem that is causing the No service issue if other people have experienced this too. Unfortunately, since I never used the phone with a sim before rooting it, I don't know if it was working correctly before rooting or not. I can say that it was sold as "new, sealed box", however, with original packaging.
Now I am at a bit of an impasse. The service on the phone works sometimes, but is not reliable enough to be usable, so I went back to my other device and have had the v20 sitting around doing nothing for a bit now. I am tempted to send it back to LG for repair, but it has clearly been rooted already and since there are no kdz files available for the h910, there is no way to revert to complete stock. So I suppose I am hoping someone can give me some ideas here. I have been trying to figure this out for weeks now and haven't had much luck. As I see it, here are the options:
1. Perhaps this is a software problem that someone on the forums knows how to fix, which would be ideal. I have seen some threads regarding modem settings, but none of the ones I have seen apply to the h910.
2. If this is a HW problem, I could send the phone back to LG as rooted and effectively guarantee I will have to pay the repair cost. I have no idea how much that will be, but I would like to avoid it.
3. I could intentionally brick the phone and send it back claiming that it bricked itself. Seems ridiculous, but I have heard of this before.
4. Sell the phone as rooted. Haven't had much luck in that regard yet.
I must say that having a very unreliable phone has not been a pleasant experience so far. Can anyone offer some advice?
Does anyone know if LG is going to make a fuss about the phone being rooted if I send it back to repair? Can they at least reflash it to stock kdz for free?
Well, it happened... I was browsing XDA on my beautiful V20 when suddenly I'm looking a the boot logo.. and then a black screen. I tried to turn it on a million and one times, various battery pulls, plugging into every PC in the house (and it wasn't detected... at all). The only thing it would do is vibrate one time after holding the power button. I was at a loss.. If my computer couldn't recognize it, I couldn't fix it.
Thankfully, it was still under manufacturer warranty. I sent it in holding my breath, hoping they wouldn't be able to tell that I had Dirty Santa'd the hell out of the bootloader. As luck would have it, not even 24 hours later I received an email saying my phone had been repaired. And what did they do to fix my V20?
... they replaced the flash memory.
LG's track record with memory hasn't been the greatest the past couple of years, so I'm wondering if the memory bug is going to happen to us.
FYI: My V20 was a US Cellular US996 running WETA ROM with barely any tweaks other than what came with the ROM.
I have 2 v20s that I have bricked 3 times for various reasons. When I sent them off for repair, LG replaced the NAND twice, and the entire logic board once.
At the time I thought maybe it was just easier for them to replace the NAND than to re-flash it, but I think you may be on to something. Maybe they know that the NAND they used is flaky, so they don't even try and flash it.
-- Brian
Today on my way to work I was playing music through my bluetooth and the music stopped. I went to reset bluetooth and it took almost 3 mintues to turn off. When I went to turn it back on, it wouldn't. I powered off and reset the phone. After, it got stuck in a bootloop. LG logo for about 7-8 secs and restarts.
Before the bootloop, I was noticing a few weird things: A notification of USB Options was always up, was saying I was using my phone as a USB Power Supply. If I changed the options it would revert back to USB PwrSply. I noticed the battery life was getting a lot worse. Also, when plugged into Quick Charge it would not say "Quick Charging" anymore.
I can get into the Recovery menu, but all options revert to the bootloop.
I can get to the Download menu. After about a few seconds of sitting on the Download menu, it starts the LG logo bootloop.
I have not tried to flash another stock ROM. I have downloaded the LGUp program, Uppercut, LG Mobile Support Tool, and LG Mobile Driver. I also downloaded the previous 1BA firmware kdz file.
I believe I have the knowledge to reflash properly, but I do not want to make the phone worse or lose my data. Plus, I don't want to void the warranty.
TL;DR I have bootloop and want to save my data!
Any suggestions would be very much appreciated! Thank you!
Flashing won't help you, this is a hardware problem. You can try freezing then phone, seeing if it will boot, and then backing up your files a fast as you can. Alternatively, if that doesn't work, you can take a hair dryer and heat the phone up.
Either way, LG will definitely take care of it under warranty since those morons can't seem to make a decent heat sink that lasts. Every LG flagship phone since the G4 has had this problem. I am sure the V30 and G7 will be no different -- they just haven't been out long enough yet.
-- Brian
runningnak3d said:
Flashing won't help you, this is a hardware problem. You can try freezing then phone, seeing if it will boot, and then backing up your files a fast as you can. Alternatively, if that doesn't work, you can take a hair dryer and heat the phone up.
Either way, LG will definitely take care of it under warranty since those morons can't seem to make a decent heat sink that lasts. Every LG flagship phone since the G4 has had this problem. I am sure the V30 and G7 will be no different -- they just haven't been out long enough yet.
-- Brian
Click to expand...
Click to collapse
I was hoping that this wasn't the issue. I was hoping that it was from the 1CA update, because the other random problems seemed to have started when it updated. Should I at least try to reflash? Would reflashing to a stock/OEM ROM (the one i mentioned above) void the warranty?
Also, when I restarted the phone today, that was the first restart that I have done since the update. Not sure if that means anything, but maybe??? lol
No, flashing a KDZ does not void the warranty even by LGs terms.
In the US rooting your phone doesn't void the warranty either .. no matter what OEMs will have you believe.
-- Brian
runningnak3d said:
No, flashing a KDZ does not void the warranty even by LGs terms.
In the US rooting your phone doesn't void the warranty either .. no matter what OEMs will have you believe.
-- Brian
Click to expand...
Click to collapse
Awesome! That's definitely good to know. Thanks.
I'm going to attempt to downgrade flash it. If it doesn't work, I'll contact LG. I dont really care about buying a new phone. My data on it is worth WAY more to me than the phone. (Guess I really should start backing up my stuff XD )
If you have any suggestions as to recovering my data, even if it kills the phone, I'm all ears!
Update: I attempted to flash or just access the phone as storage using many different ways. While I was browsing for new answers, I kept the phone connected to my computer and left it bootlooping. Eventually, the phone battery died and booted up properly. The battery was at 1%, but everything loaded just fine. I was able to recover all my data and save it to my PC.
Thinking that this was a soft-brick due to the phone actually fully booting, I was going to attempt to root and flash. I let the phone charge to 100%. When I reset the phone to implement the root, the phone got stuck in a BOOTLOOP AGAIN.
Any ideas in why this would happen? Does this mean it's a software based bug, or hardware?
Dart_Fur said:
Update: I attempted to flash or just access the phone as storage using many different ways. While I was browsing for new answers, I kept the phone connected to my computer and left it bootlooping. Eventually, the phone battery died and booted up properly. The battery was at 1%, but everything loaded just fine. I was able to recover all my data and save it to my PC.
Thinking that this was a soft-brick due to the phone actually fully booting, I was going to attempt to root and flash. I let the phone charge to 100%. When I reset the phone to implement the root, the phone got stuck in a BOOTLOOP AGAIN.
Any ideas in why this would happen? Does this mean it's a software based bug, or hardware?
Click to expand...
Click to collapse
I'm not sure to be honest, your situation seems strange
Was it hot and was your phone in the sun during your trip to work? Overheating can make weird things happen.
lakingslayer said:
Was it hot and was your phone in the sun during your trip to work? Overheating can make weird things happen.
Click to expand...
Click to collapse
It wasn't hot at all, I had the A/C in my car on and it sets on a car mount that mounts to the air vent. It gets direct A/C. I didn't have it charging either.
All I did was connect my phone to Bluetooth, play a mix, and drive 15mins to work at 6am in the morning. It was still dark and cool out. The music stopped and I tried to reset bluetooth. It took forever to turn off and wouldnt turn back on. I reset phone and BOOTLOOP. ???
There is no damage to the phone physically. I don't think I've ever dropped it ever. It's gotten hot a couple times, but that was months and months ago.
I've never had a problem with this phone since I got it almost 2 years ago, since the 1CA update, I had a couple bugs, now this bootloop.
Dart_Fur said:
Update: I attempted to flash or just access the phone as storage using many different ways. While I was browsing for new answers, I kept the phone connected to my computer and left it bootlooping. Eventually, the phone battery died and booted up properly. The battery was at 1%, but everything loaded just fine. I was able to recover all my data and save it to my PC.
Thinking that this was a soft-brick due to the phone actually fully booting, I was going to attempt to root and flash. I let the phone charge to 100%. When I reset the phone to implement the root, the phone got stuck in a BOOTLOOP AGAIN.
Any ideas in why this would happen? Does this mean it's a software based bug, or hardware?
Click to expand...
Click to collapse
I hope you got your data off before you started messing with it.. your phone is dead.. Runningnak3d gave you a clear warning
Flashing won't help you, this is a hardware problem. You can try freezing then phone, seeing if it will boot, and then backing up your files a fast as you can. Alternatively, if that doesn't work, you can take a hair dryer and heat the phone up.
Click to expand...
Click to collapse
Hi everyone,
Last sunday, I processed to the last upgrade of my LGv20 H990DS (Received 1st notification about availability about a week before)
Upgrade went fine and phone worked ok after it. Note: I was using it with official updates / I did not root the phone
Through on next morning, I found that I was having the LG logo then black screen then LG logo ans so on...
Won t be sure now if phone was unplugged or not overnight.
I read different threads here and some check videos but so far nothing as worked.
Would like to have an idea if it is still worst trying fixing.
Among the stuff, I tried:
Factory reset by holding the Volume down button and Power then releasing Power and pushing it back:
I access the menu but after confirming the reset I am back in a bootloop situation
I also tried to connect the phone in download mode and use LG Bridge as I saw in a video:
I can enter the download mode but phone does not get recognized and then go in bootloop again
I saw other post mentioning fastboot or XDZ but haven t seen in detail as look more steps/complicated.
Was thinking checking first if it was worth trying and if maybe my issue was due to something not fixable by myself (Hardware...)
Thanks in advance for the help!
I've got exactly the same problem. Could anyone help, please?
Hi
I will be still blocked with same issue.
Tried to bring it to a few shops, but they could not do anything.
LG is not common phone here (Malaysia) so most saying they are not familiar, don t have firmware or spare part.
I m taking back the phone tomorrow and was planning to try
https://forum.xda-developers.com/v20/how-to/restore-v20-to-100-stock-bricked-devices-t3524903
see if using dll and lgup will do better.
or this
https://forum.xda-developers.com/v20/how-to/guide-lg-v20-to-life-t3827732
but i m not sure it will work since in my case it is not recognised and download mode doesn t stay on and phone goes back to bootloop?
One of the issue I thought was it might be due to usb connector, might the port is having issue as i used another cable as the lg one was not working anymore at some point?
If connecting phone, phone is charging but no connection can be done.
Was thinking trying to change the port but to do it here is not so easy as no spare part locally.
I don t have soldering tools here and going via a shop will cost a bit and long delay, before doing it would anyone know if it might solve the issue or I m going a wrong way and issue is not link to connector?
Thanks