Develop Bugs

Stay on G4 or move to OnePlus 3?

Guys, how do you think?
I have my G4 (S/N 512), camera is perfect, CPU is good, screen is excellent.
I don't care about updates, but I love Cyanogenmod, clean Android etc. I want to mod my phone, personalize it in every way I can. Unfortunelly I can't with locked bootloader. I could just unlock it, but I'm aware of bootloop. When it'll happen my phone will be just paper clip. So I'm thinking. The OP3 is near. OnePlus got great terms of guarantee. But still, I'm kinda in love with G4. I jumped from SGS3 to it. So it was my designed phone.
Anyway, what do you think? Will my phone brick? Move to OP3?

Stay until you get the bootloop (as you expect). It is kinda risk now to jump over to OP3. I know the rumoured specs are good but you wont loose by waiting a bit for some few reviews

lol op?Support epic joke.

Which serial number is your phone? I have a 510 device and i believe those are safe from the bootloop issue because those have the v1.1 motherboard. I unlocked the bootloader on mine because of this and it has been quite nice with CyanogenMod 13. However, like yourself i'm debating whether to upgrade the phone later this year. I don't 'hate' the G4, in fact it's a nice phone with a fantastic camera, screen and good performance. But there's something about it that i don't like, i bet this sounds stupid but it's just such a boring phone, honestly. Before this i had the OnePlus One and that felt like something genuinely special, and i kinda wish i'd stuck with that instead of buying the G4.
I doubt i'll go back to another OnePlus device because of their shocking customer service, if you end up with a bad device then it seems like you're gonna be ****ed for a few months. There was one person on Reddit who sent his phone back in February and still hasn't received it as of yesterday, like what the hell is that about. I'm going to wait and see what the new Nexus devices are like in about three months, i think that's the way forward for me because it would be nice to have a device which receives updates quicker than anything else, and always stays on top with the vast developmental community behind it. Only problem with those is the price and lack of a memory card slot, but we'll have to see what happens, maybe the prices will be a little more affordable this time to compete with the OP3 and similar devices.

What about Moto Z Force, if it's not only for US market? Depends on the price of course.

I just upgraded from my G3 to a factory refurb G4 and so far I really like it all except for the issue where you cannot wake up the phone by double tapping the screen like 99% of the time. There's supposed to be a way to upgrade the lg keyboard app unless you are, like myself, on Verizon in which case they so graciously removed all the useful settings menu items such as app upgrades, etc...

P650SE said:
Which serial number is your phone? I have a 510 device and i believe those are safe from the bootloop issue because those have the v1.1 motherboard. I unlocked the bootloader on mine because of this and it has been quite nice with CyanogenMod 13. However, like yourself i'm debating whether to upgrade the phone later this year. I don't 'hate' the G4, in fact it's a nice phone with a fantastic camera, screen and good performance. But there's something about it that i don't like, i bet this sounds stupid but it's just such a boring phone, honestly. Before this i had the OnePlus One and that felt like something genuinely special, and i kinda wish i'd stuck with that instead of buying the G4.
I doubt i'll go back to another OnePlus device because of their shocking customer service, if you end up with a bad device then it seems like you're gonna be ****ed for a few months. There was one person on Reddit who sent his phone back in February and still hasn't received it as of yesterday, like what the hell is that about. I'm going to wait and see what the new Nexus devices are like in about three months, i think that's the way forward for me because it would be nice to have a device which receives updates quicker than anything else, and always stays on top with the vast developmental community behind it. Only problem with those is the price and lack of a memory card slot, but we'll have to see what happens, maybe the prices will be a little more affordable this time to compete with the OP3 and similar devices.
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i have 601 how do i know what MB version i have?

If you want to hear my opinion for new phones:
Wait 1/2 to 1 year. Why?
• You know, if the phone will get its love by devs.
• It's also much cheaper.
• Many little hardware-bugs will probably be fixed.
3 good reasons to wait. New != better. Sad new world, I know. Except it's a Nexus: Same price until new one is released, same hardware - but devs will love it .

raptorddd said:
i have 601 how do i know what MB version i have?
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There should be a sticker on the inside of the box which states the serial number and has the motherboard version at the end in closed brackets. But as your phone is 601, it will have the updated motherboard and so you're safe from the bootloop problems.

P650SE said:
There should be a sticker on the inside of the box which states the serial number and has the motherboard version at the end in closed brackets. But as your phone is 601, it will have the updated motherboard and so you're safe from the bootloop problems.
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Click to collapse
thanks ill check it out.. but theres still people reporting bootloops even with 603. ??
i have it bootloader locked just in case. i own tmobile h811..

I think I am *very* close to going with the OnePlus 3. Just need a little more review/confirmation to make the jump.

Considering OP3 already has a CM13 build going and kernel sources out, I'd honestly get rid of the G4 while its still worth something. I would've done the same thing if it weren't for the fact my piece of garbage G4 decided to bootloop literally days before the OP3 release.

mfrey0118 said:
I just upgraded from my G3 to a factory refurb G4 and so far I really like it all except for the issue where you cannot wake up the phone by double tapping the screen like 99% of the time. There's supposed to be a way to upgrade the lg keyboard app unless you are, like myself, on Verizon in which case they so graciously removed all the useful settings menu items such as app upgrades, etc...
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Click to collapse
My double tap to wake used to work great. Then I got bootloop issue, had phone repaired from LG, and double tap to wake basically NEVER works. Not sure if it'd be worth a FDR or what.

qyrus said:
Considering OP3 already has a CM13 build going and kernel sources out, I'd honestly get rid of the G4 while its still worth something. I would've done the same thing if it weren't for the fact my piece of garbage G4 decided to bootloop literally days before the OP3 release.
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Mine bootlooped friday and I'm going to get the OP3 in the next few days. I'm trying to get my G4 repaired, if LG dont do it then I'll use my insurance to have it replaced. I plan on using the time I have without it to see how I lkthe OP3. If I like it, I'll sell the G4, if not, I'll sell the OP3.
I've read a lot of bad things about OP3's support, but in trying to get my G4 repaired, it can't be much worse than LG's (edit: since I made this comment, I've been on LG Chat on their website with a really helpful guy called Carl who's said my phone is covered with a 2 year warranty and they will fix it - much better than the cookie cutter email response team).

No removable battery on the OP3. They claim to charge their phone to 100% in 45 minutes. The G4 can be at 100% in about 3 minutes from shutoff to reboot with a fresh battery installed. I love my G4.

I loved my G4 till it stopped working and LG refuse to fix it because rooting voids the warranty.

P650SE said:
There should be a sticker on the inside of the box which states the serial number and has the motherboard version at the end in closed brackets. But as your phone is 601, it will have the updated motherboard and so you're safe from the bootloop problems.
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This statement is false and very dangerous for users. All smartphones, even with S/N starting with 60x are prone to bootloop problem. I have my LG G4 with v1.1 motherboard, S/N 602 and guess what happened to it...

Eumiro said:
This statement is false and very dangerous for users. All smartphones, even with S/N starting with 60x are prone to bootloop problem. I have my LG G4 with v1.1 motherboard, S/N 602 and guess what happened to it...
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Well, that's news to me. When i bought my G4 in December the bootloop problem had already become widely known, and i did extensive research into it on XDA and other websites, but at the time all 510 and 511 devices were deemed to be completely safe. If those devices were affected by the bootloop problem then i wouldn't have even considered buying it.

Eumiro said:
This statement is false and very dangerous for users. All smartphones, even with S/N starting with 60x are prone to bootloop problem. I have my LG G4 with v1.1 motherboard, S/N 602 and guess what happened to it...
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LOL, there are even cases of the new G5 bootlooping. LG has become such a joke. And it's a shame because the G4 would've been a perfect phone if they had caught the bootlooping and image retention issues while testing it.

duluc said:
LOL, there are even cases of the new G5 bootlooping. LG has become such a joke. And it's a shame because the G4 would've been a perfect phone if they had caught the bootlooping and image retention issues while testing it.
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i don't see any report of lg g5 bootlooping .

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.
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Thanks but is the 509 model known to update?

rmantech said:
Thanks but is the 509 model known to update?
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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.
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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?
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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
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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?
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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
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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.
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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
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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.
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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:
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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........
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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

Looking to buy a G4, Bootloop problems?

I'm looking into buying a (possibly refurbished) G4, but I read up that there's a bootloop problem on certain devices, how do I know if it's safe or not?
I've heard that serial numbers 505-509 and/or hardware revision 1.0 are the ones afflicted, but some people reported devices with the S/N 511/512 and HW revision 1.1 with said same problem.
Should I be worried with just buying a certified refurbished device from amazon/ebay with this floating around?
What should I look for to be safe?

There is no guarantee that the one you get won't bootloop on you. I bought a brand new 510 and it lasted 9 months before it bootlooped. Verizon replaced it free of charge. It really is a good phone apart from that. As long as you keep everything backed up, you should be OK, should it bootloop on you. Most everything nowadays can be backed up via the cloud.
Sent from my VS986 using Tapatalk

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.

Has LG actually fixed bootloops in newer models (SN601+)? Or can they still fail too?

Sorry if this has been answered before, I tried looking around the forum and couldn't find a definitive answer about this. Or perhaps people just don't know yet... Anyway, I own a G4 that developed the bootloop and LG agreed to help. I'll supposedly be getting a new replacement phone (mine is a Singapore variant, they're swapping it for a US carrier version instead). Hopefully all goes well and I get a fully functional replacement.
But i'm still concerned. Thanks to videos from CellularDR and others, the exact cause of the defect is known and fixable. If you have the tools and skill to delid the SOC, clean and de-solder the defective materials inside, and re-solder properly (which I don't). I'm sure LG is also aware of the way to fix it themselves if they were so inclined, though i'm not sure if I trust them to apply those corrections properly to prevent the problem from returning. It was initially believed they fixed models manufactured October 2015 and later (serial number beginning in 510). Mine however was a 510 and developed the problem. It can take time for bootloops to start too (mine lasted almost a year and a half), so even a 6xx or 7xx device that works at first may still bootloop later if the proper modifications were not made by LG.
So are newer "fixed" 6xx or 7xx models really fixed and safe from the bootloop? Anyone had any of these fail on them yet? I realize one way to tell- taking apart the Snapdragon SOC and see how the solder looks, but I don't expect anyone would have done this (nor expect them to).

Goatville said:
Sorry if this has been answered before, I tried looking around the forum and couldn't find a definitive answer about this. Or perhaps people just don't know yet... Anyway, I own a G4 that developed the bootloop and LG agreed to help. I'll supposedly be getting a new replacement phone (mine is a Singapore variant, they're swapping it for a US carrier version instead). Hopefully all goes well and I get a fully functional replacement.
But i'm still concerned. Thanks to videos from CellularDR and others, the exact cause of the defect is known and fixable. If you have the tools and skill to delid the SOC, clean and de-solder the defective materials inside, and re-solder properly (which I don't). I'm sure LG is also aware of the way to fix it themselves if they were so inclined, though i'm not sure if I trust them to apply those corrections properly to prevent the problem from returning. It was initially believed they fixed models manufactured October 2015 and later (serial number beginning in 510). Mine however was a 510 and developed the problem. It can take time for bootloops to start too (mine lasted almost a year and a half), so even a 6xx or 7xx device that works at first may still bootloop later if the proper modifications were not made by LG.
So are newer "fixed" 6xx or 7xx models really fixed and safe from the bootloop? Anyone had any of these fail on them yet? I realize one way to tell- taking apart the Snapdragon SOC and see how the solder looks, but I don't expect anyone would have done this (nor expect them to).
Click to expand...
Click to collapse
Nobody really knows.
But I can say that I do not trust any refurbished phone where the mainboard gets replaced!
I believe this is also a hot fix only and it differs from phones produced since 2016.
I own two 603 serials and well I'm a heavy user when it comes to stress test due to development. No issues so far.. But regular backups is a must always
.
Sent from my LG-H815 using XDA Labs

I did see a couple of people in another thread were claiming their 601 G4's bootlooped. So that is troubling to me. Though I also saw someone else claim that there were actually some cases of people lying on here about the issue happening to them (Samsung trolls or something to that effect). I haven't found any posts claiming any G4's with 602 and above are bootlooping.
When I spoke with LG tech support, they said that I would be receiving a replacement phone instead of repairing my original device. Due to it being from a different region. I do not know anything about the "new" G4 they'll be sending back though, except that I think it'll be a T Mobile H811 variant (at least that is the carrier I said i'd be using, they seemed to be allowing me to choose). I don't know if it's going to be a new device or some kind of refurbishment, nor the model number it will have.
I'll have to cross my fingers. And hopefully they honor the replacement and don't find any reason to refuse to help me. I took very good care of the device and didn't go messing with it apart from exchanging the original battery (which went bad for no apparent reason and actually physically inflated, had to get rid of it as it's a fire hazard).

I never saw any proof(!) for a 603 or higher device which gets boot looped. Only one refurbished and actually without any proof. That's why I do not trust any refurbished..
The fix was introduced in late 2015 but I personally believe it takes time to change the production process. This means you would get e.g. a 511 with the fix and and also without (I have no proof for it though) and depending on the time required to change all production paths this can take a while.
I believe that you can be save after 3-4 months after the fix was introduced so 603 and later. But well guarantees are elsewhere..
.
Sent from my LG-H815 using XDA Labs

i would say. from 601 upwards it still can happen but no like before with 505-510's seems there a re slim chances it will.
last ive heard was a 603 about 3 of them.. not bad.. compared to the 505's so id say chances are slimmer..

raptorddd said:
i would say. from 601 upwards it still can happen but no like before with 505-510's seems there a re slim chances it will.
last ive heard was a 603 about 3 of them.. not bad.. compared to the 505's so id say chances are slimmer..
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Click to collapse
My concern with assuming the reliability of 6xx models is the length of time it can take before a bootloop appears. My 510 lasted from January 2016 to May 2017 before it failed. Almost a year and a half. Though I do not know how typical my G4's lifespan was compared to others.
I don't know how typical that length of time is for others who bootlooped, but perhaps the reason so few 6xx devices have failed is because they're not old enough yet. Hopefully we don't see an increasing number of 6xx models failing as the year goes on.

Goatville said:
My concern with assuming the reliability of 6xx models is the length of time it can take before a bootloop appears. My 510 lasted from January 2016 to May 2017 before it failed. Almost a year and a half. Though I do not know how typical my G4's lifespan was compared to others.
I don't know how typical that length of time is for others who bootlooped, but perhaps the reason so few 6xx devices have failed is because they're not old enough yet. Hopefully we don't see an increasing number of 6xx models failing as the year goes on.
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yes true. about what you say.. but seems that reports are lower. nothing like the 5XX.

I've tried to find any accurate information regarding reliability of more recent versions, but haven't found any reliable source.
I had a 506, and it experienced bootloop after 12 months of moderate usage. It was repaired under warranty, and now it's 705 (motherboard was made in may 2017).
I just can't see any logic in producing crippled motherboards almost two years after cause of boot loop is discovered..

After 1 year and 2 months, my S/N 601 G4 just got bootloop last week. Threw it straight into the dustbin since that device was imported from the UK
just for the sake of the unlockable bootloader that doesn't exist in Asia.

My 511 just started bootlooping. Was able to get my data by setting it in front of my AC but will immediately reboot if it move it away.

Interesting fact is that motherboards usually fail after 1 year and 2 month (most likely). It was the same with my G4.

The replacement model LG sent me has a 701 serial number, so January 2017. Good. I guess this is the best chance of getting a bootloop free G4 that I can hope for. Though there's no telling if these models are safe either due to the time they can take to break. Can take a year or more to tell (and by then who knows if LG will even bother to help anymore).
At least for now though I once again have a working phone. It's also cooler thus far than my former G4, so maybe they did do something. Plus I now have a custom kernel and overclocking enabled on the big cores (though the custom governor settings might actually be helping thermals).