Bootloop issue in 6xx - G4 Q&A, Help & Troubleshooting

Okay, I'm getting a LG G4 tomorrow. I was quite sure that If I get one manufactured in 2016, I won't have to face the bootloop issue. But then I heard people complaining about the issue even with the ones' S/N starting with 6xx. I also heard that it's due to a software issue not hardware like the previous ones.
So I was wondering what LG has to say regarding this new software problem? Should we expect a fix in the next update?Or, will I be safe if I get the phone and downgrade it to Lolipop from Marshmallow?

SirDarknight said:
Okay, I'm getting a LG G4 tomorrow. I was quite sure that If I get one manufactured in 2016, I won't have to face the bootloop issue. But then I heard people complaining about the issue even with the ones' S/N starting with 6xx. I also heard that it's due to a software issue not hardware like the previous ones.
So I was wondering what LG has to say regarding this new software problem? Should we expect a fix in the next update?Or, will I be safe if I get the phone and downgrade it to Lolipop from Marshmallow?
Click to expand...
Click to collapse
that's not a software problem ,is a hardware problem .

alecore said:
that's not a software problem ,is a hardware problem .
Click to expand...
Click to collapse
I am talking about the new ones. The 2015 ones had a "loose connector in the motherboard" which caused the bootloops but LG fixed it in their new phones but another bootloop issue arose but this time it's due to the new Marshmallow version of Optimus UX

SirDarknight said:
I am talking about the new ones. The 2015 ones had a "loose connector in the motherboard" which caused the bootloops but LG fixed it in their new phones but another bootloop issue arose but this time it's due to the new Marshmallow version of Optimus UX
Click to expand...
Click to collapse
are you sure about that they 'fixed' it ? Recently a phone with 603 s/n reported for bootloop failure. I'm not really sure that's a software problem caused by marshamallow because they will have know it (due to their tests on phone before releasing)

alecore said:
are you sure about that they 'fixed' it ? Recently a phone with 603 s/n reported for bootloop failure. I'm not really sure that's a software problem caused by marshamallow because they will have know it (due to their tests on phone before releasing)
Click to expand...
Click to collapse
only 1 phone? Well

Well how do you know that guy didn't screw up his phone himself? Like when flashing a custom ROM or something!

SirDarknight said:
Well how do you know that guy didn't screw up his phone himself? Like when flashing a custom ROM or something!
Click to expand...
Click to collapse
I don't about the phone you're talking about but my 509 was repaired with a 603 motherboard that only lasted 3 weeks before getting the bootloop issue itself. During this time the phone was hardly used as I was waiting for Vodaphone to unlock it and I don't flash my phones.

Hi, LG changed the motherboard of my lg g4 in 3 days. I had bootloop problems with my old s/n 505. That's ok, but my new serial number starts now with 610. It's good now? Anyone with new problems s/n 6xx?

Related

Marshmallow update caused bootloop

Hi all,
Just got news of the marshmallow being available to my LG G4 (H815). I was aware of the update having been rolled out to Poland and Korea before so I thought it was a safe bet.
I plugged in my phone, started the LG Bridge software which prompted me with the update. I went on and downloaded it, which happened without any issues.
However, when the process was over and my phone restarted, it went through the usual "app optimization" window and after that started boot-looping. I have the initial audio cue from LG playing every few minutes, with the same "app optimization" for 12 apps (when the first time it was around 90).
I initially left it for a while (5-10min) before i started losing patience. I removed the battery but that didn't change anything.
I initiated the Recovery mode, but it prompted me with a "factory reset" question, which I didn't feel like doing before having tried anything else.
My phone is not rooted and was running Android 5.1, the LG variant. I never fiddled with this phone.
Has anyone else experienced issues updating? Do you have any suggestions on what I can do to recover my data? Because for me, that's mostly what I'm concerned of.
Thanks!
Edit: In addition, I'm facing a new problem... while boot-looping, my phone is actually draining more energy from the battery than my charger can provide (yet, it's a 1,8A @ 5V).
It's now down to 10%, which I've been able to verify by removing the battery thus shutting down the phone, putting the battery back inside, and plugging the phone in while being off. However, this automatically turns on the phone, so it briefly displays the battery charging animation before booting... My phone was at 100% during the Marshmallow update.
Which S/N (serial number on your box) do you have? 505 and 506 are known for this issues..
appileh said:
Which S/N (serial number on your box) do you have? 505 and 506 are known for this issues..
Click to expand...
Click to collapse
Wow, wasn't aware of that... it turns out it's a 505...
Wh!teSh4dow said:
Wow, wasn't aware of that... it turns out it's a 505...
Click to expand...
Click to collapse
yes it can be a issue of the 505.. Not to scare you or anybody else (there are people here that are crying and closing threads because i talk things like this.) But 505 is a known issue that some of the motherboards have defects. I hope you can fix it for yourself or call the cheap manufacturer LG..
appileh said:
yes it can be a issue of the 505.. Not to scare you or anybody else (there are people here that are crying and closing threads because i talk things like this.) But 505 is a known issue that some of the motherboards have defects. I hope you can fix it for yourself or call the cheap manufacturer LG..
Click to expand...
Click to collapse
Are you aware of this being a reason for replacement units to be issued? I didn't buy it through LG directly but through amazon, so I'll get in touch with them, but just wanted to know if you've had any experience or know of anything regarding this. And thanks for letting me know.
Wh!teSh4dow said:
Are you aware of this being a reason for replacement units to be issued? I didn't buy it through LG directly but through amazon, so I'll get in touch with them, but just wanted to know if you've had any experience or know of anything regarding this. And thanks for letting me know.
Click to expand...
Click to collapse
Np chief. They will fix your phone, just say it is in a bootloop after LG's official update. Call Amazon or LG itself to fixe this problem. (you mentioned you didnt root anything etc so you are good to go boss).
appileh said:
Np chief. They will fix your phone, just say it is in a bootloop after LG's official update. Call Amazon or LG itself to fixe this problem. (you mentioned you didnt root anything etc so you are good to go boss).
Click to expand...
Click to collapse
I figured, they would just try to restore my device and send it back to me, so I tried it and it worked. I'm still disapointed for two reasons:
- I still lost valuable data which I can't retrieve any more
- I'm still stuck with my device which could very well be prone to other issues in the future (any future update ?)
There are issues with this phone because i had 3 Rma's because of motherboard and dead pixels. My wife has also dead pixel and has version 506. Just use your phone, Marshmallow update is out so maybe they changed something in the system to stabilize the motherboard.
Verstuurd vanaf mijn LG-D855 met Tapatalk

MM Causing LG G4 To Die ?

most of us who are using 505 are encounter some kind of bootloop and causing the phone to be dead the only known solution is RMA
Did you experience the same thing? As in series 505 motherboard that got replaced by Series 512 motherboard and software updated to MM?
Wow. It seems like a serious issue. I hope it will be patched soon. I am still on Lollipop though.
Anyway, if it is a widespread issue even after the mobo change, I am guessing G4 has a deep-rooted manufacturing flaw or really incompetent diagnostic (just change mobo to 'resolve' bootloop death).
Click to expand...
Click to collapse
anyone who send their phone whose has a changed of mobo(Motherboard) has re encounter this issue?
there's a thread in Q&A about this. issues were likely with the earlier version with 505 to 507 or 509. 510 and above doesnt seem to have that issue
I highly doubt all of the hundred thousands phones from 505 to 509 to have this issue. But there is such issue for sure. What is the reason no one knows or at least is not saying.
Sent from my LG-H815 using Tapatalk

Are all LG G4 with 6xx serials safe?

I don't want to risk spending $400 on a likely-to-get-bricked phone. I'd like to buy the H815 version with warranty. If I get the bootloop problem after buying the phone, is it possible to fix it with warranty?
No.
SirDarknight said:
I don't want to risk spending $400 on a likely-to-get-bricked phone. I'd like to buy the H815 version with warranty. If I get the bootloop problem after buying the phone, is it possible to fix it with warranty?
Click to expand...
Click to collapse
yes,you can fix it with warranty(unless you don't mess with the phone). So far only 603 has been reported for bootloop issue. No idea about others.
602, no problems so far..
.
I don't think any devices are 'safe'.
The problem took between 6 - 9 months to appear for most people.
There's no possible way any 602+ users can say they have been using the phone for 9+ months without this problem.
My H815 serial number start 509 release date 16 Sept 2015 still going strong. Currently running H81520D stock firmware and phone unlocked but not rooted. I have been on several other incl CM13 and no problems so far.
Sent from my iPad using Tapatalk
H815 S/N 601 have screen flickering problem.
OllieD said:
I don't think any devices are 'safe'.
The problem took between 6 - 9 months to appear for most people.
There's no possible way any 602+ users can say they have been using the phone for 9+ months without this problem.
Click to expand...
Click to collapse
Yeah, I agree. As far as 6xx series goes, not many people have reported but its too early to say its safe. But since this issue has been known by LG so they might fix the issue on all models which are in production. Hoping for the best since I have already ordered it!
Phoenix854 said:
Yeah, I agree. As far as 6xx series goes, not many people have reported but its too early to say its safe. But since this issue has been known by LG so they might fix the issue on all models which are in production. Hoping for the best since I have already ordered it!
Click to expand...
Click to collapse
Hope you get a recent model. i've had mine 2 months and its a 506.
Has LG figured out the real cause behind this problem? If some of the new phones have actually shown bootloop issues then that should mean LG failed to fix it.
Also, after fixing it from warranty, is there any possibility for the problem to occur again?
How many times will the warranty fix my phone?
SirDarknight said:
Has LG figured out the real cause behind this problem? If some of the new phones have actually shown bootloop issues then that should mean LG failed to fix it.
Also, after fixing it from warranty, is there any possibility for the problem to occur again?
How many times will the warranty fix my phone?
Click to expand...
Click to collapse
goood question, i have heard people sent their devices and cameback then it occured again.. this should have a lifetime warranty on bootloop issue only.
raptorddd said:
goood question, i have heard people sent their devices and cameback then it occured again.. this should have a lifetime warranty on bootloop issue only.
Click to expand...
Click to collapse
So, LG will fix it for me only once?
SirDarknight said:
So, LG will fix it for me only once?
Click to expand...
Click to collapse
no they said, they sent it again. i think if its unlocked bootloader it isnt covered.. i asked if phone was used would it be covered, they say yes 15 months from manufaacturing date.. am still thinking of getting one..
OllieD said:
Hope you get a recent model. i've had mine 2 months and its a 506.
Click to expand...
Click to collapse
Just received! Its 602!!!
I hope I will not end up with bootloop issue. :laugh:
hello,
are lg g4 models start with this serial MEZ660xxxxxx (1.1) BL safe from bootloop issue ??
hardware ver 1.1
date of manufacture is Sep, 19 2015
im gonna bye an international version with no warranty .... so im worry
I have 603, too early to tell if it will not bootloop.
Sent from my LG-H815 using Tapatalk
samitro said:
I have 603, too early to tell if it will not bootloop.
Sent from my LG-H815 using Tapatalk
Click to expand...
Click to collapse
what is the date of manufacture and hardware ver. ?
Safy4u said:
what is the date of manufacture and hardware ver. ?
Click to expand...
Click to collapse
ESN Date(Prod. Date): Mar 08, 2016
ESN Go Date: Mar 11, 2016
The box says 1.0 if this is the hardware version
samitro said:
I have 603, too early to tell if it will not bootloop.
Sent from my LG-H815 using Tapatalk
Click to expand...
Click to collapse
Same here. Got a 603 after I sent in my 506 for repairs. The 506 was running strong and bootlooped out of no where so that fear is still in the back of my head.

will my g4 bootloop?

Hi, just bought a second hand g4 with serial number starting 509 will the phone possibly bootloop? Also the phone is the Taiwan model and I currently live in the UK, will having the Taiwan model cause any problems? Thanks
It may Bootloop it may not. There is no definite answer. You may have problems with a non EU model in the EU. They may fix it or may not. You have to ask an LG service centre about this.
Riardon said:
It may Bootloop it may not. There is no definite answer. You may have problems with a non EU model in the EU. They may fix it or may not. You have to ask an LG service centre about this.
Click to expand...
Click to collapse
Thanks but is the 509 model known to update?
rmantech said:
Thanks but is the 509 model known to update?
Click to expand...
Click to collapse
If you ask if 509 is prone to Bootloop issue I think it is. Most bootloops happened on 505 though but the general consensus is the newer G4 you have the less chances for bootloop. Again there is no definite answer. We do not know the dirty details. We don't know which S/N is safe and if LG fixed the problem and from which S/N and after they did. We purely rely on public reports to draw conclusions. Up until now 6xx seems safe with only 1 or 2 ppl reported a bootloop on Reddit. Just make a backup and keep your data on the SD card. If you get a bootloop contact LG. They seem to be aware of the issue and fixing all broken phones even out of warranty some times.
Riardon said:
If you ask if 509 is prone to Bootloop issue I think it is. Most bootloops happened on 505 though but the general consensus is the newer G4 you have the less chances for bootloop. Again there is no definite answer. We do not know the dirty details. We don't know which S/N is safe and if LG fixed the problem and from which S/N and after they did. We purely rely on public reports to draw conclusions. Up until now 6xx seems safe with only 1 or 2 ppl reported a bootloop on Reddit. Just make a backup and keep your data on the SD card. If you get a bootloop contact LG. They seem to be aware of the issue and fixing all broken phones even out of warranty some times.
Click to expand...
Click to collapse
Thanks so much for the response!!! So do you recommend I return the phone as there is a risk of boot loop and the phone is from Taiwan so they may not fix it?
rmantech said:
Thanks so much for the response!!! So do you recommend I return the phone as there is a risk of boot loop and the phone is from Taiwan so they may not fix it?
Click to expand...
Click to collapse
yes theres a high chance it may bootloop.. and no UK wont repair your phone.. you must shipped to the country you got it from .. i say return. and get a phone with 6xx serial number.. there less reports with those serial numbers..
maybe @jinderation can chime in... hear hes story.
rmantech said:
Hi, just bought a second hand g4 with serial number starting 509 will the phone possibly bootloop? Also the phone is the Taiwan model and I currently live in the UK, will having the Taiwan model cause any problems? Thanks
Click to expand...
Click to collapse
I had taiwan h815 yes it did bootloop eventually there are reported 509s in bootloop also if u bought it used u wont have warranty from uk only taiwan that is if u have the original receipt n the warranty card in the box n u must have a friend in taiwan too who can go to lg center n have it replaced n i tried email n phone they didnt help me ... If ur going to use it longer period like a year forget it lots of frustration
And phones with serial 508?
catsado said:
And phones with serial 508?
Click to expand...
Click to collapse
supposely up until 510 were fixed.. yet ive seen 510 to one 604.
jinderation said:
I had taiwan h815 yes it did bootloop eventually there are reported 509s in bootloop also if u bought it used u wont have warranty from uk only taiwan that is if u have the original receipt n the warranty card in the box n u must have a friend in taiwan too who can go to lg center n have it replaced n i tried email n phone they didnt help me ... If ur going to use it longer period like a year forget it lots of frustration
Click to expand...
Click to collapse
I'm in the UK and have the same problem - a bootlooping TWN H815. It was purchased used last year, so no receipt or warranty card. I was wondering whether you had explored paying LG for an out-of-warranty repair? At this stage I'm looking at the best way of cutting my losses.
itm said:
I'm in the UK and have the same problem - a bootlooping TWN H815. It was purchased used last year, so no receipt or warranty card. I was wondering whether you had explored paying LG for an out-of-warranty repair? At this stage I'm looking at the best way of cutting my losses.
Click to expand...
Click to collapse
In US cost of repairs alone is 200US$ cuz of morherboard replacement either that or which u can get a used g4 at the same price so even if ur bootloops there is no point of fixing it....all i can say for u is to wait for atleast an year after the bootloop so the prices fall down for repairs....there is no way u can send it to taiwan also there is no warranty n recepit thats only even if u have a friend there...
Avoiding heat
Hi all am in same boat. Got a EU H815 an 506 hw1.0 and until a week ago had never heard about bootloop issue. I've had unlocked bootloader, rooted with custom ROMs nearly whole ownership and as a result have never had any heat up issues. After reading 100s of pages of the issue my conclusion is that it seems to be heat that affects a soldered component which eventually fails. So based on this theory I'm using Kernel Adiutor to control the throttling when CPU temp gets >55degc. It is only an educated guess but does seem logical. Hope it helps others
Meakii said:
Hi all am in same boat. Got a EU H815 an 506 hw1.0 and until a week ago had never heard about bootloop issue. I've had unlocked bootloader, rooted with custom ROMs nearly whole ownership and as a result have never had any heat up issues. After reading 100s of pages of the issue my conclusion is that it seems to be heat that affects a soldered component which eventually fails. So based on this theory I'm using Kernel Adiutor to control the throttling when CPU temp gets >55degc. It is only an educated guess but does seem logical. Hope it helps others
Click to expand...
Click to collapse
Ive been saying its a heat issue aince day 1 and no one would listen to me.
TheMadScientist420 said:
Ive been saying its a heat issue aince day 1 and no one would listen to me.
Click to expand...
Click to collapse
Definitely the cause. I did always notice with stock ROMs Genisys etc my phone got hotter than CM and logically it makes sense so I'm sticking with it :fingers-crossed:
Meakii said:
Definitely the cause. I did always notice with stock ROMs Genisys etc my phone got hotter than CM and logically it makes sense so I'm sticking with it :fingers-crossed:
Click to expand...
Click to collapse
Seems like the issue calmed down over the winter in the northern hemisphere. And now that the summer is in full bloom people are looping like crazy. Im hoping between being almost as far north as one gets in usa. So like 85 far. Is blazing here. Plus me doing the thermal mod im keeping my device cool enough to make it as i have no waranty so a mb replacement costs me about 200 dollars american.
I have a s6 and a couple other mid range devices. I wont hesitate to toss my g4 in the trash. I got mine on a trade in from my g3 i only paid like 150 for my g4 so nope not me. Unless i get one cheap.
If this was an automobile this would be a recall i dont understand why these devices arent recalled.
I saw a news cast talking about how they make devices so cheap and breakable "for the economy" why would u buy the newest devices out if your old ones are running quite perfectly they say. So this is for economic reasoning. So go ahead lg keep making s****y devices i will buy a new one but not from you.
Yea i want a g5 but i wont give more that 100 bucks for it in the fear of failure.
Like i said keep it up lg seal your economic fate........
TheMadScientist420 said:
Seems like the issue calmed down over the winter in the northern hemisphere. And now that the summer is in full bloom people are looping like crazy. Im hoping between being almost as far north as one gets in usa. So like 85 far. Is blazing here. Plus me doing the thermal mod im keeping my device cool enough to make it as i have no waranty so a mb replacement costs me about 200 dollars american.
I have a s6 and a couple other mid range devices. I wont hesitate to toss my g4 in the trash. I got mine on a trade in from my g3 i only paid like 150 for my g4 so nope not me. Unless i get one cheap.
If this was an automobile this would be a recall i dont understand why these devices arent recalled.
I saw a news cast talking about how they make devices so cheap and breakable "for the economy" why would u buy the newest devices out if your old ones are running quite perfectly they say. So this is for economic reasoning. So go ahead lg keep making s****y devices i will buy a new one but not from you.
Yea i want a g5 but i wont give more that 100 bucks for it in the fear of failure.
Like i said keep it up lg seal your economic fate........
Click to expand...
Click to collapse
They are always better options than LG out there...the credibility rate for lg is always has been the worst thats why there used phones are sold dirt cheap everywhere
Hi, my G4 had bootloop recently, motherboard was changed under the warranty. New motherboard was made in 04/2018. Is it known if newer motherboards still have a bootloop issues?
I cannot found any relevant informations. Maybe because nobody already have this old phone
Standa said:
Hi, my G4 had bootloop recently, motherboard was changed under the warranty. New motherboard was made in 04/2018. Is it known if newer motherboards still have a bootloop issues?
I cannot found any relevant informations. Maybe because nobody already have this old phone
Click to expand...
Click to collapse
they are all bad as far as i know. And yes, nobody has this phone as its later revisions bootlooped after warranty and its more expensive to repair this piece of crap than what it is worth even after repairing.
I have my bootlooped G4 in a drawer since 1 year ago.
I have a phone that's never bootlooped

Bootloop fixed?

Helio guys, I'm planning to buy a aecond-handed G4, but I've seen that there's a major issue with it, a bootloop problem caused by the motherboard.
My question is, Did LG repaired that problem on some new G4 models, I saw that phones starting serial number with 505 are the ones that will fail
Thank you
hi,
if you have a phone with serial 50x, then you need a new motherboard (phone) with 6xx
Aljecama12 said:
Helio guys, I'm planning to buy a aecond-handed G4, but I've seen that there's a major issue with it, a bootloop problem caused by the motherboard.
My question is, Did LG repaired that problem on some new G4 models, I saw that phones starting serial number with 505 are the ones that will fail
Thank you
Click to expand...
Click to collapse
You have to ensure that the serial begins with 603 or higher
also ensure that you do not buy a phone with an already replaced mainboard! Means the phone should be produced in 2016
.
Sent from my LG-H815 using XDA Labs
steadfasterX said:
You have to ensure that the serial begins with 603 or higher
also ensure that you do not buy a phone with an already replaced mainboard! Means the phone should be produced in 2016
.
Click to expand...
Click to collapse
Thanks for your reply:good:
So, phones with serial starting 603 and higher doesn't have this problem?
The one I'm planning to buy is this, I asked the seller to send me a screenshot of hardware info.
After seeing it, should I ask him for a serial number photo?
steadfasterX said:
You have to ensure that the serial begins with 603 or higher
also ensure that you do not buy a phone with an already replaced mainboard! Means the phone should be produced in 2016
.
Sent from my LG-H815 using XDA Labs
Click to expand...
Click to collapse
this is very interesting! How do you know that from SN 603 there are no more bootloops? Is there a statement from LG?
Aljecama12 said:
Thanks for your reply:good:
So, phones with serial starting 603 and higher doesn't have this problem?
The one I'm planning to buy is this, I asked the seller to send me a screenshot of hardware info.
After seeing it, should I ask him for a serial number photo?
Click to expand...
Click to collapse
1. let him pull out the battery and take a pic of the serial there (this is no guarantee though because if it was in repair the sticker could be replaced as well)
2. please consider to buy a h815 international(!) or h811 because only these both can be unlocked!
PinBot01 said:
this is very interesting! How do you know that from SN 603 there are no more bootloops? Is there a statement from LG?
Click to expand...
Click to collapse
Just my personal experience and opinion. There are no guarantees or official statements anywhere.
experience means:
I own 2 h815 and both having serial 603 and both are in heavy usage because of development and they are still alive.
regarding the background of my opinion:
LG acknowledged the mainboard issue in January 2016 (http://www.androidauthority.com/lg-admits-g4-bootloop-problem-hardware-fault-669603/) and so we can assume that beginning from then it should be fixed for any newer devices then that date. 603 means March 2016 so I think that beginning from this charge it will be safe. again no guarantees nowhere.
.
PinBot01 said:
this is very interesting! How do you know that from SN 603 there are no more bootloops? Is there a statement from LG?
Click to expand...
Click to collapse
he should get a tmobile h811.
well i can vouch for that too.
after readings lots of complains you can see the pattern that most 5xx failed. and keep failing. some are lucky thoug.
LG claims that from 511 upwards its fixed . but reports are different . only a few 601 and rare 603
it doesnt mean it wont theres no way to tell but chances will be low.
am running a 601.
I saw a poll somewhere (might have been here on xda) showing bootlloop data by SN and as expected most of the bootloops were on 5xx devices. But there were a few problems even on the newer devices.
It seems logical that refurbished units in the past 6 months or so should hold up. At that point LG had determined exactly what the problem was. However, I have read threads on folks who had their G4's replaced with refurbs multiple times. I just think it is a gamble when picking up a G4 because you never know if it will last, these things are like ticking time bombs. It reminds me of the RROD Xbox 360 problem a few years ago. Best bet is to get a warranty.
My personal experience was a G4 505 purchased on release from Verizon June 2015, bootlooped October 2016. Verizon replaced with refurb and SN 506 which has been running fine, no evidence of bootlooping.

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