Develop Bugs

[Q] Galaxy Note 2 seems bricked, Can we turn it alive ?

Got galaxy Note 2 , totally bricked right now , Gave it to my friend and he returned me back with completely black screen. Could you please suggest me if anything i can try on this one.
Things i have tried so far
1) Tried with different battery no luck
2) externally charge battery with external charger no luck
3) checked all the connectors inside , all are looking intact
4) replaced charging port no luck
Seems like this device got bricked somehow, is there any way to turn it alive ??

Riffbox or jtag. Mine died last week this way it came back to life unfortunately mine have kind a issue with emmc so it will gonna die eventually again. I hope yours one is ok.

badtzo said:
Riffbox or jtag. Mine died last week this way it came back to life unfortunately mine have kind a issue with emmc so it will gonna die eventually again. I hope yours one is ok.
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Please consider me Novice in JTag field, Do we need different boxes for different devices, i have seen several videos on Jtag,I have sent mail to their US distributor bcoz unfortunately we do not have any in Canada. What's the success rate on these devices ?? Do we have any instructional videos or any support how to use RIFFBOX , just want to make sure if i would be able to use it before i make my order

I have just realised that you don't tell us if you have warranty... if you have it then use it. Cause the way I've told you before probably will void the warranty.
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I don't know how it works in your country but here in mexico, there are several External Service Centers (not official) they repare anything, softbrick, hardware brick, change the case cover, dialpad, etc. but it has a cost. If you buy the box just to repair your phone I think it will cost a lot of money to you since this boxes works with a lot of models of different brands (they are expensive) and you need technical knowledge about how to work with them.
In my case, the Service Center first tried with riffbox (cheaper and fast way) and it worked to turn on the phone in a couple of minutes, it was indicating there was bootloader broken so it worked when tried to rapair it but since my emmc memory was kinda buggy, it died the same day, so i left it again to warranty on the SC and they then tried with jtag this way they told me is like the "hard reset" since wipe and make again the partition system and install all the stuff, now works pretty well but they make a warning to me abut future deads because the final solution and the real one that needs my phone is to change the motherboard (they don't change just the emmc).
But if your emmc is ok, they probably just need to use riffbox maybe jtag but your phone will surely be ok again.
the cost for the reparation should be about 30-50 USD
If you don't know where is one of this external service centers on your town, try searching on google about riffbox, jtag service center in -your town-.

badtzo said:
I have just realised that you don't tell us if you have warranty... if you have it then use it. Cause the way I've told you before probably will void the warranty.
----
I don't know how it works in your country but here in mexico, there are several External Service Centers (not official) they repare anything, softbrick, hardware brick, change the case cover, dialpad, etc. but it has a cost. If you buy the box just to repair your phone I think it will cost a lot of money to you since this boxes works with a lot of models of different brands (they are expensive) and you need technical knowledge about how to work with them.
In my case, the Service Center first tried with riffbox (cheaper and fast way) and it worked to turn on the phone in a couple of minutes, it was indicating there was bootloader broken so it worked when tried to rapair it but since my emmc memory was kinda buggy, it died the same day, so i left it again to warranty on the SC and they then tried with jtag this way they told me is like the "hard reset" since wipe and make again the partition system and install all the stuff, now works pretty well but they make a warning to me abut future deads because the final solution and the real one that needs my phone is to change the motherboard (they don't change just the emmc).
But if your emmc is ok, they probably just need to use riffbox maybe jtag but your phone will surely be ok again.
the cost for the reparation should be about 30-50 USD
If you don't know where is one of this external service centers on your town, try searching on google about riffbox, jtag service center in -your town-.
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Click to collapse
Thanks a lot for this much knowledge about this product. I always help my friend fixing their phones and some of my good friends pay me for that. Its kind of part time job for me. I am just crazy to try something new in this field so I am not worrying about money part right now. That is why I am just seeking information how much it will cost and from where i can get information how to use this box. I guess we need lot of new things to learn before i start using it. Please let me know whatever u know about it, I am gathering knowledge from google too and other websites , Your help so far is very much appreciated. Please let me know what else you know about these riffbox or jtag ?

G4 bootloop: LG officially admits hardware fault, will repair affected devices

Hello, good news!
LG finally admits the problem. Then it will be easier for us to have our devices repaired/replaced! :highfive:
Some of you already shared links on several topics related to bootloop, I think it's better to create a new topic about it, as I wrote an article too for french customers
English: http://www.androidauthority.com/lg-admits-g4-bootloop-problem-hardware-fault-669603/ (official statement)
French: http://www.gamergen.com/actualites/...engage-remplacer-unites-defectueuses-269974-1
For european customers/people who bough it from UE reseller, no worries:
bel57 said:
P.S. furthermore, European Union stipulate under directive 1999/44/CE that it allows users to modify the software, root included. This modification *DOES NOT* void minimum warranty of 2 years on hardware supported by the manufacturer.
Voided warranty by "illegal" software modification has been classed as an unfair term and it's fought by U.E.
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Click to collapse
Sources
https://fsfe.org/freesoftware/legal/flashingdevices.en.html
http://www.bitdefender.com/security...nty-in-eu-but-opens-new-ways-for-malware.html
Already discussed here http://forum.xda-developers.com/showthread.php?t=1998801
EDIT: check out Svartsyn333 feedback
Svartsyn333 said:
Just called them and it's on its way back, should arrive within the next few hours! They told me it got repaired and all is fine. Owner check went through IMEI so no problem with forgetting to add the invoice, too. And no problem with unlocked bootloader and root either! I'm a happy girl now. I will come back here when it arrived and tell if they just repaired it or if I got a new device.
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EDIT2: Ok guys, I *finally* got my G4 back.
LG PROJECT P1 (H815 - LG G4)
IMEI changed
S/N 505x => 602x
Repair: SWAP motherboard, software update (20D)

But would we all be subjected to the warranty? Otherwise it's not different from before.
At this point it seems like they just realized what the problem is after wrongly sending back a few units as 'repaired' even though it's still having issues.

"Customers who purchased their G4 devices from non-carrier retailers should contact an LG Service Center with the understanding that warranty conditions will differ. "
If you purchased your G4 from a third party website/eBay, it's more difficult to get your warranty recognized.. best is buying it via carrier, LG official store and recognized sellers.

Are they also going to apply the fix during the production of newer LG G4s? because if not, it sounds like all lg g4 will experience the bootloop sooner or later and will only repair it after it has happened

Yes, no detailed information about it, but it seems that they already changed the production process weeks ago and they're just late to communicate on the identification of this breakdown.

bel57 said:
"Customers who purchased their G4 devices from non-carrier retailers should contact an LG Service Center with the understanding that warranty conditions will differ. "
If you purchased your G4 from a third party website/eBay, it's more difficult to get your warranty recognized.. best is buying it via carrier, LG official store and recognized sellers.
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Click to collapse
"For in warranty repair service, you must include a copy of the proof of purchase inside the product packaging returned to the LG Product Repair Center."

Well, I can't see any problem here. You need the original invoice, that's uuuh.. normal?

I just bought the g4 and sadly discovered that my S/N started with 505. Thanks god i did not unlock the bootloader. But I really want to unlock it to install custom rom. I'm thinking of sending my device to LG even if i didn't have the bootloop yet so i'll be sure not to get it after unlocking the bootloader and then having LG not repairing my phone. What do you think ?

Just use it and stop worrying, your device may not be broken as ours.. and no, you can't leave it to repair if it doesn't have the bootloop thing.

So where are all those people now who always wanted to prove not many people are being affected or it's a common thing to have problems when they first come in the market???? I wanna see their faces... I had to hear lots of things when I started writing about it. People made me believe maybe I am the only one annoying the surreal sound of the community. It makes me so happy to see this day which I was crying out loud to happen for so long.
Sent from my LG-H815 using Tapatalk

nipun1110 said:
I had to hear lots of things when I started writing about it.
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I feel you, bro. I went through all pages of your topic. It's a worldwide issue and it's a shame LG is so late to admit this problem. Well, finally you're right, our posts, our thoughts.. all paid off. Thanks mate.
Often when people are not concerned they tend to underestimate facts.. and this proves too much units are faulty.

bel57 said:
I feel you, bro. I went through all pages of your topic. It's a worldwide issue and it's a shame LG is so late to admit this problem. Well, finally you're right, our posts, our thoughts.. all paid off. Thanks mate.
Often when people are not concerned they tend to underestimate facts.. and this proves too much units are faulty.
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Thanks man.... Hopefully me and all the other suffered will have our devices repaired. Best of luck for all of us.
Sent from my LG-H815 using Tapatalk
---------- Post added at 03:04 AM ---------- Previous post was at 02:58 AM ----------
spartan268 said:
But would we all be subjected to the warranty? Otherwise it's not different from before.
At this point it seems like they just realized what the problem is after wrongly sending back a few units as 'repaired' even though it's still having issues.
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Yah, what "warrenty will differ" means, needs to be cleared out.
Sent from my LG-H815 using Tapatalk

Wish you all good luck in this initiative. As for me, I'll go to carrier shop tomorrow to get a spare unit. :good:

Good to see this thread. My phone just died this night and since then is constantly hanging at boot screen. No access to recovery and download mode, no recognition by the computer (only a few seconds, then it restarts and gets disconnected) so no kdz flash via flash tool either. Just sent out a repair request to LG. Now fingers crossed it falls under warranty as I unlocked the bootloader. I purchased it in June and this is clearly of one of the first produced series which has the hardware defect, s/n starts with 505.

Don't worry, LG must repair this harware issue, no matter if BL is unlocked or not.
If you want to wipe or recover your data, try the freezer method. It works.

nipun1110 said:
So where are all those people now who always wanted to prove not many people are being affected or it's a common thing to have problems when they first come in the market???? I wanna see their faces... I had to hear lots of things when I started writing about it. People made me believe maybe I am the only one annoying the surreal sound of the community. It makes me so happy to see this day which I was crying out loud to happen for so long.
Sent from my LG-H815 using Tapatalk
Click to expand...
Click to collapse
A lot of these 'people' don't really care or look into things until it happens to them.
Then all of a sudden there up in arms being your friend about the issue. It really only took a two second google search to see how widespread this is. On reddit there's a constant stream of bootloop posts if that's not enough proof.
Now? It's just crickets from the ones who were so keen on shooting this off as a small 'problem'. foh

bel57 said:
Don't worry, LG must repair this harware issue, no matter if BL is unlocked or not.
If you want to wipe or recover your data, try the freezer method. It works.
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Click to collapse
I have a backup on the sd card from just a few days ago. I was aware something is wrong as it started to have charging issues, so I made one to better be safe than sorry.

Good idea :good:
Unfortunately mine freeze too fast, I just had time to retrieve my data then wipe all via recovery.. now it's sent for repair.. :crying:

But I can't do anything before this issue occurs? My s/n also starts with 505...My only chance is to keep fingers crossed?:fingers-crossed:

Yo don't complain as your phone is working great, just enjoy it and keep in mind to backup your data to microSD/computer. There's a small percentage that it will brake one day.
I remember mine overheated few times, and it may have broke a hardware component.
If there's nothing to report on your device, then you don't have to worry.

Re-Lock LG-G4 warranty issue

Hi together,
I've sold a LG G4 eight weeks before. The phone was unlocked via the official LG developer method and cyanogenmod.13 was installed. The phone works well, but for 2 weeks the camera does not work any more. After resetting, the camera works fine for a few hours. I have reset and reinstall the original lg software via lg update tool but the camera defect is still available. I'm pretty sure that issue is a hardware issue.
To create a warranty issue, the bootloader must be re-locked again.
Do you have any ideal to (re-lock) lock the bootloader again? Otherwise I have to pay to repair a 8 weeks old phone.
Note: I'm new in this forum. Therefore it was not allowed to open a issue within the developer section.
regards,
dreas

You cant re-lock the bootloader. Unlocked is unlocked. Its written everywhere...no way back!

I've successfully send mine for repair after applying 24V to the battery contacts (batter removed) and frying the mainboard. It was the only way to get them to fix it and it worked.

maildaemon said:
I've successfully send mine for repair after applying 24V to the battery contacts (batter removed) and frying the mainboard. It was the only way to get them to fix it and it worked.
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Click to collapse
Which service point/country did you use? The IMEI number is well known for LG that this phone was unlocked. Did you use the official unlock process from LG itself?

Just buy a new camera off ebay. They're about $20 and fit it yourself
Sent from my LG-H815 using XDA-Developers mobile app

tavablub said:
The IMEI number is well known for LG that this phone was unlocked. Did you use the official unlock process from LG itself?
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Click to collapse
How would LG know this IMEI is unlocked? Having gone through the web process to download the needed files doesn't mean one has used them (like me).
http://forum.xda-developers.com/showthread.php?p=66285689
Unless the phone itself transmits its unlocked state *after it is actually unlocked*, LG can't claim it is unlocked just because you downloaded the files.

In E.U any software modification are legal by the law, and LG can't cancel the warranty, so if you are in Europe you have no problem.

mkiller88 said:
In E.U any software modification are legal by the law, and LG can't cancel the warranty, so if you are in Europe you have no problem.
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Click to collapse
i had no luck in germany.

mkiller88 said:
In E.U any software modification are legal by the law, and LG can't cancel the warranty, so if you are in Europe you have no problem.
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Click to collapse
That is not true. I've been in contact with several entities to be able to know if that was true and they always said that the warranty is void. There is always a chance they don't care you have the bootloader unlocked and still fix your phone but you shouldn't count on it. In short, if you are lucky you can get your phone fixed. I'm still waiting for LG's response to whether should they fix the phone if you had the bootloop problem and the bootloader unlocked but if the problem is not that I doubt they will fix it.

What entities would that be?
Problem is that companies don't like regional warranty laws, and will often play misinformed or ignorant of them, so they will inform you about *their* side of the story.
Fact is they *have to* honor them, but won't do so unless they are made to. Which often means the consumer has to take it further, which is time (and maybe money) consuming, so, many of us don't do it. And of course the companies know it and count on it.

EPa said:
What entities would that be?
Problem is that companies don't like regional warranty laws, and will often play misinformed or ignorant of them, so they will inform you about *their* side of the story.
Fact is they *have to* honor them, but won't do so unless they are made to. Which often means the consumer has to take it further, which is time (and maybe money) consuming, so, many of us don't do it. And of course the companies know it and count on it.
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I talked to the seller and lg itself. The thing is the time/money you will spend putting lg in court won't compensate for the phone. If they don't want to fix the phone they won't fix the phone unless you know some laywer that works for free
Sent from my LG-H815 using XDA-Developers mobile app

Exactly my point. So, several entities were basically LG. No consumer rights organization, no law googling, and yet you started your post with "That is not true".

EPa said:
Exactly my point. So, several entities were basically LG. No consumer rights organization, no law googling, and yet you started your post with "That is not true".
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Click to collapse
I'm sorry if I wasn't explicit enough. What I mean is: If LG doesn't fix your product you won't get it fixed unless you lose 10 years of your life worth in trouble. Even if you go to any consumer rights association you won't get your phone fixed before 6 months or so. Can you handle 6 months with no phone? My point being, if you want to keep your warranty don't unlock the bootloader despite the fact we are right we have no power to make the law count.

Agreed.

It's legal to unlock your bootloader in EU, but LG doesn't recognize that and they've answered me to proceed with suing them - they do not care Just go to a local repair shop - any would do, and tell them to apply 24V to the battery contacts - it will fry the mainboard and leave you with the possibility to return it for a repair. The phone acts as if it's in the Qualcomm mode - a know problem with the G4, so they will just replace the board and give you back the new one. Of course they don't know whether your bootloader is unlocked or not. Just don't tell them when bringing the phone to the repair center (duh)

maildaemon said:
It's legal to unlock your bootloader in EU, but LG doesn't recognize that and they've answered me to proceed with suing them - they do not care Just go to a local repair shop - any would do, and tell them to apply 24V to the battery contacts - it will fry the mainboard and leave you with the possibility to return it for a repair. The phone acts as if it's in the Qualcomm mode - a know problem with the G4, so they will just replace the board and give you back the new one. Of course they don't know whether your bootloader is unlocked or not. Just don't tell them when bringing the phone to the repair center (duh)
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Click to collapse
That seems to be the best answer to the problem. Fight fire with fire xD

sirsomething said:
I'm sorry if I wasn't explicit enough. What I mean is: If LG doesn't fix your product you won't get it fixed unless you lose 10 years of your life worth in trouble. Even if you go to any consumer rights association you won't get your phone fixed before 6 months or so. Can you handle 6 months with no phone?
Click to expand...
Click to collapse
Not it if you know how to argue with them like this guy
As a 'gesture of goodwill' they fixed it
My point being, if you want to keep your warranty don't unlock the bootloader despite the fact we are right we have no power to make the law count.
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Click to collapse
agreed even though i live in India and have no chance whatsoever of unlocking any bootloader.

Spillunke said:
i had no luck in germany.
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It seems this http://forum.xda-developers.com/showthread.php?p=64779773 guy in Germany was luckier than you.. maybe pm him?

After emailing lg they said I could send the phone to be analysed and if it was their problem they would fix it. However there is always the chance they say it was our fault but at least they won't reject it before knowing what the problem is
Sent from my LG-H815 using XDA-Developers mobile app
Edit: this is for LG Portugal

sirsomething said:
After emailing lg they said I could send the phone to be analysed and if it was their problem they would fix it. However there is always the chance they say it was our fault but at least they won't reject it before knowing what the problem is
Sent from my LG-H815 using XDA-Developers mobile app
Edit: this is for LG Portugal
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Click to collapse
can you post update please of your situation. when you get nay news about your phone.

Can I repair a bootlooping device myself?

I have unlocked my bootloader and rooted my device (H815, s/n 506*, EU); and therefore LG does not want to repair my LG G4 under warranty.
Can I repair it myself, maybe replace the motherboard or something? Does anyone really know what the exact problem is? Where should I get replacement parts?

You need to just put it back to stock then call back and don't mention that it was ever rooted. It doesn't matter if it was or not anyway.
Sent from my LG-H811 using Tapatalk

I already sent it in, so they know. I want to repair it myself.

whizz said:
I already sent it in, so they know. I want to repair it myself.
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yes replace MB yourself or use the modded TOT to use only 4 cores and big cores disabled

whizz said:
I have unlocked my bootloader and rooted my device (H815, s/n 506*, EU); and therefore LG does not want to repair my LG G4 under warranty.
Can I repair it myself, maybe replace the motherboard or something? Does anyone really know what the exact problem is? Where should I get replacement parts?
Click to expand...
Click to collapse
Mbs are about 200 dollars american. A little pricy in my opinion but one of the most simple setups ive ever seen

You can try all the methods mentioned above, have it fixed in a repair shop (they'll re-solder the flash chip) or even put it in the oven. But it won't help. It'll only work temporarily.

yep !Buy new mainboard and then replace .
BUt EU 2 year !!
If well know hardvwre issu i think lg don't refuse repair!!!Kick the frakking table mate good luck! see this:
http://piana.eu/root

@kabirjedi unlocking your bootloader do indeed void your warranty. He cannot do anything with it and link you posted is about installing CFW or rooting fw alone.

From my observations the processor is the only problem, more accurately, the two faster cortex a57 cores. Some how they broke hence the phone cannot be booted up as it returns that them 2 cores are unavailable. Thats why this tot method works.

TheRadziu said:
@kabirjedi unlocking your bootloader do indeed void your warranty. He cannot do anything with it and link you posted is about installing CFW or rooting fw alone.
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Lg admit o.day hardware issue must repair. for free.
Mate! LG not overwrite EU law.....
If not go to consumer protection and start
proceedings
100% win
ohh my 666.post

kabirjedi said:
Lg admit o.day hardware issue must repair. for free.
Mate! LG not overwrite EU law.....
If not go to consumer protection and start
proceedings
100% win
ohh my 666.post
Click to expand...
Click to collapse
Congratz on your 666th post
I agree with that it SHOULDN'T void warranty, but sadly it does and AFAIK in Poland no one managed to get it fixed for free with unlocked bootloader, even if this EU law was mentioned. I dont know how they manage to overwrite Eu laws but they sure know how to confuse the customer and leave him with 1600PLN bill (price for repair outside of warranty)
Luckly I just had unbranded FW + root + xposed without having bootloader unlocked so they replaced mobo without any problems.
Anyway I wish you best of luck in your case, OP. Do what @kabirjedi suggested, perhaps you will have more luck in your country

the way i see it. is no matter what phone is defective. i dont think a phone because of unlock bootloader will bootloop. it will brick for sure so they are very different things . but LG sees this a potential to make bootloop more easily affected. thats non sense.. theres phones like S2 running great G2 with bootloader unlocked running great.. this is hardware no sofware... maybe heat plays a role...only way i see it can trigger it is overclocking it... but if you unlock and debloat phone should runs better with less apps that are crap.. one exmaple is disable logd.. that helps the CPU.

raptorddd said:
the way i see it. is no matter what phone is defective. i dont think a phone because of unlock bootloader will bootloop. it will brick for sure so they are very different things . but LG sees this a potential to make bootloop more easily affected. thats non sense.. theres phones like S2 running great G2 with bootloader unlocked running great.. this is hardware no sofware... maybe heat plays a role...only way i see it can trigger it is overclocking it... but if you unlock and debloat phone should runs better with less apps that are crap.. one exmaple is disable logd.. that helps the CPU.
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Click to collapse
Time and time again it has been confirmed that this has nothing to do with bootloader being locked or unlocked. This is manufacturing issue that was firstly acknowledged when they recalled all Sprint models with 505xxx S/N but other providers/suppliers ignored it and carried on selling faulty devices just to meet sales targets. Make sales first and worry about the potential issues later is the common practice nowadays. For the suppliers it was always the possibility of either developing the bootloop or not. For LG replacing just motherboards still means a sold device at the end of the day. And don't worry in this competitive market companies do anything to meet the sales targets... Headaches for us -> small inconvenience for LG.

On reddit people suggested resoldering the CPU, I might give that a shot.

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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Click to collapse
Thanks but is the 509 model known to update?

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