yashsingh1/xdaforums huggingface dataset:
[Nexus 5X Q&A, Help & Troubleshooting] sfhub:
I am also guessing that if you open up the unit and fashion some sort of shunt from cardboard box then use non-conductive tape to tape ontop of cpu and memory chip so that when you put the phone back together, pressure is applied to the chips, you can probably get it working for a while, at least long enough to get data off of it.

Not a long term solution either, because the chips will probably overheat.

So the root causes for this problem MIGHT have been any of the following:

- the original solder balls were slightly unequal sizes making the solder connections weak for some of the connections weaker

- the substrate/motherboard may have been slightly warped causing uneven stress in some areas

- there may have been some impurities in the manufacturing process

- the heat profile may have been off for the type of solder used. Unlike lead solder, lead-free solder is non eutectic, which means the different metals in the solder melt at different temperatures (leaded solder melts completely at one temperature) If you don't heat to certain levels then increase the heat to other levels and the proper schedule, you won't get strong joints

- insufficient heat management could lead to undue stress on joints, possibly due to board slightly warping and adding stress to already weakened joints

- there are probably other explanations people in manufacturing can tell you

So your options to get things working are:

1) send it in for RMA, either Google, Project Fi, or LG

2) call your credit card and ask for warranty under their extended warranty program

3) stick it in the freezer and hope enough moisture or contraction is present to connect the fissure/crack that formed in the solder or the board warps back to a form that releaves pressure on the connector so it can form connection again

4) "reflow" the solder by heating up the chips using either precise temperature controlled hot air rework station or go ghetto and use something like a hair dryer or heat gun. reflow means you are trying to get the existing solder to heat up and melt to close the fissure/crack, but the underlying problem might still be there, like insufficient solder, warped board, solder impurities, poor heat management causing stress on joints, etc., so problem will probably return

5) "reball" using leaded solder balls of high quality (uniform size). This would be much more costly but would probably permanently fix the problem

reballing looks like this (video is for xbox360)

https://www.youtube.com/watch?v=atSQBCpgA1E

6) open up the unit and place some cardboard shunt to apply pressure to the CPU and eMMC chips to try and have the fissures closed when the unit is reassembled and downward pressure is applied on the chips.
[Nexus 5X Q&A, Help & Troubleshooting] InterrtuptoR:
Why is lg giving refunds, cant they fix it like that?
[Nexus 5X Q&A, Help & Troubleshooting] sfhub:
To fix these things for real, they probably need to figure out what went wrong with manufacturing and do a manufacturing design change. It is much cheaper to just give your money back. Even the parts they are using for repairs probably suffer from the same problem.

LG cannot reball using leaded solder balls (which would probably alleviate or eliminate the problem) due to environmental regulations. Reballing using leaded solder is more robust even with less attention to heating profiles (leaded solder melts all at the same temperature while lead-free solder is non-eutectic, meaning the different metals melt at different temperatures, so you have to be very careful in the heating of the board to follow a specific script) As a home user, if you want you can reball using leaded solder but it is an expensive and time consuming process.

LG can easily reflow your board though, but IMO that just pushes the problem further down the road because it doesn't fix the core issue of weakend joints, which might be solder ball quality problem, heating profile problem, design issue with not enough heat dissipation, or board warping due to repeated heat/cool cycles. It could be any one of those problems.

So reball using leaded solder is like using brand new more robust glue to fix the problem. Reflow is like crazy gluing the existing broken joints. I'm taking liberties in my descriptions.
[Nexus 5X Q&A, Help & Troubleshooting] deathstalker279:
Same thing happened to me after installing the N update. After flashing the stock ROM about 3 times, i gave it up.

After trying several times the region around the camera (rear) (processor i think) got quiet hot but, didn't stuck! It was booting fine without any freezes! Unfortunately, the battery was low at that time, so, it switched off.

After i got home, i charged it for an hour and tried to boot it. But it didn't boot and freezed and rebooted 69 times...

Some thing is really not good with the manufacturing process.

Share your device's batch number as only a few devices are facing this problem
[Nexus 5X Q&A, Help & Troubleshooting] wolfie1_0:
Sooo just as an update I had my device freeze and bootloop last night, I bought mine on launch and is therefore its out of warranty at this point.

I actually own a hot air rework setup and decided to give it a shot. about 20 min later and my phone is back up and running perfectly. I'll have to see if it stays working, I don't have any liquid flux on hand but figured I'd give it a shot anyways.

i focused my heat on the eMMC chip but couldn't locate my small tip for the setup so I probably got the CPU/RAM hot enough to reflow as well so I'm not really able to narrow it down for you guys very much. But i do have to thank the OP whom suggested it as a possible fault.

If anyone has any questions for me feel free to ask, I also wouldn't have any issues doing it for a small price for other people if they wanted to pay shipping to and from Canada
[Nexus 5X Q&A, Help & Troubleshooting] nesoor1230:
I have tried everything .. freezing , heating , removing battery , installing stock Roms . ADB fast boat. So on.. but no use.
[Nexus 5X Q&A, Help & Troubleshooting] krelvinaz:
Sure you have a LG Nexus 5X? You can't remove the battery on this phone or at least easily.
[Nexus 5X Q&A, Help & Troubleshooting] RyanEJ25:
I tried this and now the phone gets so hot I can't even touch it and the screen doesn't turn on. Its still read by fastboot so idk what I did. It was only 3 or 4 ribbon connectors. I give up back to google.
[Nexus 5X Q&A, Help & Troubleshooting] ACHILLES R32:
I'm having the exact issues like everyone else. I was able to access recovery and recover files from the SD. However Im now having a hard turning on the phone and when I do, I can get it into bootloader/ recovery but computer won't recognize it. So I can't lock the bootloader and unroot to send it in for repair. What do you guys suggest? As far a returning to stock and unrooting would it even be possible?

If not I'm probably going to send the phone as is and hope LG fixes it lol.

Sent from my Nexus 5
[Nexus 5X Q&A, Help & Troubleshooting] dtgo:
well let it be confirmed that heating actually fixes the bootloop issue , i was having this issue and i opened it up and heated as the post instructed and now its working
[Nexus 5X Q&A, Help & Troubleshooting] ACHILLES R32:
Tried to boot the phone and all I get is the red blinking light ant this point I'm just thinking about getting a pixel but 680$ for 32GB is insane. Hopefully LG fixes my phone sending it in on Wednesday

Sent from my Nexus 5
[Nexus 5X Q&A, Help & Troubleshooting] bhardwajshash:
Hello everyone

My friend is facing the same issue on his 5X. Problem is, he's in India, and this was an Indian purchase. The phone is out of warranty, so LG is asking for about $200 for a motherboard replacement.

Shouldn't they be issuing refunds or at least fixing it for free when it's an issue THEY have caused, regardless of the warranty period? Why rip customers off?
[Nexus 5X Q&A, Help & Troubleshooting] Nidstang:
Thanks for all your efforts in this thread.

I pre-ordered a N5X, received it shortly after launch, and have been using it ever since with absolutely no problems. Really like the phone. I update to the latest version every month through the OTAs that Google posts, have always been utterly stock, not rooted and bootloader is locked.

Tonight, my phone spontaneously rebooted twice. Each time it was stuck at the Google logo for 5-10 minutes, but both times it eventually rebooted itself. After the first time it rebooted itself again and got stuck again, but since that time it appears fine (last hour or so). Good thing, at least I was able to go into all my 2FA-protected accounts and make sure I have a second way in and also make sure all my data is backed up.

That said, is this the error correction you are talking about, or is something else going on? If it is the error correction, can I comfortably use the phone (I rely on this phone extensively for work -- text, e-mail, and voice calls)? Does this link correctly explain how to access the dmesg log referenced above and, if so, what exactly would I be looking for?

Sorry for all the questions. But there is a ton of FUD out there about this issue, and this thread seems the only real source of solid information.

Update: It's bootlooping again. I can get it running for about 15-20 minutes every so often, but then it reboots and loops again.

Update 2: Called Google support, they are shipping me a replacement.
[Nexus 5X Q&A, Help & Troubleshooting] deathstalker279:
You need to charge it for sometime. The battery is totally depleted.
[Nexus 5X Q&A, Help & Troubleshooting] dtgo:
UPDATE : this fix worked over night , now its dead again
[Nexus 5X Q&A, Help & Troubleshooting] ACHILLES R32:
Thanks for the reply , left the phone plugged in the charger for a bit. Then put the phone in the freezer for 15min .. Got it to boot into bootloader but computer can't recognize it ( wanted to lock bootloader and un root) but it froze and I have not tried since.

Sent from my Nexus 5
[Nexus 5X Q&A, Help & Troubleshooting] dtgo:
now no matter how i reheat it wont boot back up , is there another fix i could try if possible
[Nexus 5X Q&A, Help & Troubleshooting] deathstalker279:
1) Open device manager and check if you can find your device anywhere in unknown devices or android devices

2) If you can find it anywhere, select Properties > update driver > select android devices > done

3) If not, uninstall all android based drivers > reboot > reinstall only minimal fastboot drivers and then check if it gets detected.

4) If no, check if LG tool detects it.

5) Spoiled USB port or cable

6) Device effed

Uninstalling and reinstalling drivers worked for me.

Try it.
[Nexus 5X Q&A, Help & Troubleshooting] ACHILLES R32:
Thanks, Was able to turn the phone and access the bootloader. Flashef stock, went to relock bootloader phone froze and have not been able to turn it on since. Seems to turn on once a today or so. Will try in the morning lol. Friday its going to LG wether I lock the bootloader or not. Not sure what I will do at this point , almost got a pixel but then started reading about speaker issues. And decided not to deal with more problems ?

Sent from my Nexus 5
[Nexus 5X Q&A, Help & Troubleshooting] Lfcamara:
LG didn't change the hardware earlier this year'? As I was reading that most people that is suffering this issue are people who bought the phone at launch (oct 2015 if I recall).

I bought this phone a week a go. As far the phone hasn't doing anything strange. The production Date of my N5X says 9/2016 so I should be safe for a while right?
[Nexus 5X Q&A, Help & Troubleshooting] Modder001:
Hey guys

So this hardware issue can be fixed using unbrick method ? I saw some thead regarding that in QnA section only

Thanks
[Nexus 5X Q&A, Help & Troubleshooting] sfhub:
Wow, 9/2016 is the latest I've seen for production date. I don't know if you'll be safe because LG hasn't released any details about when they realized the problem.

The reason you see so many postings with the 9/2015 or 10/2015 units is that was the largest production run and the ones where people are on the edge of running out of warranty. Before that, people just return under warranty and aren't in panic state. Also it seems to be taking aroun 10-13mo of heat/cools cycles before the solder joints develop microfracture and there was some publicity recently drawing attention to the issue.

My personal WAG guess is this is affecting maybe 1-2% of units, but when this type of problem should be affecting .01%, that is 100x more cases than normal and gives the impression of widespread failure due to the people posting.
[Nexus 5X Q&A, Help & Troubleshooting] sfhub:
If you have the hardware bootloop, it cannot be fixed using unbrick method.

If you have software bootloop it can.

Symptom of hardware bootloop is usually you are in the middle of doing some basic operation, the phone freezes, then starts bootlooping forever, especially if on a stock unmodifed phone.
[Nexus 5X Q&A, Help & Troubleshooting] Lfcamara:
Yes that's why ask if LG acknowledge the issue at that time.

By the way I know that my unit was produced 9/2016 by the first 3 digits of my S/N (609) so the first number is the year and 2nd a 3rd are the month. I am right?

I don't know if I should keep this device really as in my country all the phones are super expensive ( I bought this one because I'm in a trip and my Nexus 5 is almost dead) and we don't have LG customer service nor Google
[Nexus 5X Q&A, Help & Troubleshooting] ACHILLES R32:
Packed up my phone and sent to LG hope they repair it. Returned to stock but could not lock the bootloader. Phone froze after it was returned to stock. Have not been able to turn it on for 3 days. Will post updated once I hear back from LG

Sent from my Nexus 5
[Nexus 5X Q&A, Help & Troubleshooting] WhiteWidows:
I could have probably locked my bootloader but forgot before sending it to LG.

I was able to get in to fastboot mode and flash the stock Nexus images after it locked up and rebooted but get stuck on the Google boot image.

I hope LG doesn't be little *****es and deny my claim based on the unlocked bootloader. I only unlocked it after having reboot issues previously and wanted to flash a clean image. It didn't help. Few days later it bricked.
[Nexus 5X Q&A, Help & Troubleshooting] Modder001:
Oh no ... I'll better exchange my Nexus 5x for a new device

Can you tell me which one should I consider ?

Thanks

I have low budget now and hence I would like to buy a phone within 15k INR (~230 USD)
[Nexus 5X Q&A, Help & Troubleshooting] ZLevente:
So you was able to flash a stock system when you had a hw bootloop?

It's a good news, because we don't need to be worry about warranty if we got that problem :)
[Nexus 5X Q&A, Help & Troubleshooting] Psychofrantics:
OK guys. here is my rant.

I owned 16 gb nexus 5x h791. I bought it without warranty. Was using stock rom with elementalx nexus kernel (Hey, it is awesome. You must try it). Felt adventurous. Overclocked the cpu and change minimum gpu speed to 300 MHz. Bought my first app (nova launcher premium) from play store. Installed another app and bam.. N5X froze. Used volume up and power to restart it. To my dismay, I was stuck on google logo. F*** You LG.

Flashed factory images with no luck. Phone will not go past google logo. Flashed7.1.1 and 6.0.0. factory images. TWRP will not stick too. Tried two days with no luck. Screw you LG.

Went to market. Shopkeepers didnt have any idea. One said that I will reflow solder it. Agreed for 10 $. He reflowed but software was also corrupt. Didnt get past google. Thought I wasted my money. Went home despaired.

When I reached home, i saw that a blank screen is on. Some times recovery screen flicks. Fashed latest factory images and it booted. No I am scared to even restart it. Dont know how much time it will work. But one thing is sure. LG messed the solders. So anyone who is out of warranty should try it. It may work
[Nexus 5X Q&A, Help & Troubleshooting] WhiteWidows:
Yep, but I didn't even try to lock the bootloader. Some are reporting they cant
[Nexus 5X Q&A, Help & Troubleshooting] ZLevente:
Hm, maybe it's better to flash the stock rom, and disabling the 2 bigger core with this:

http://xdaforums.com/nexus-5x/help/bootloped-hw-please-try-t3505392

Then lock the bootloader (hope we can at this way and yes now we getting hardware and software bootloop mix :D )

and send back to LG.

I think they find out earlier the unlocked bootloader than the costum kernel.

But if the news are true, LG doesn't fix 5x anymore, they will refund you. So maybe they just try to turn on (yes now they see the UB, but can't see costum kernel) or enter stock recovery and if it's not succesfull, they refund you.
[Nexus 5X Q&A, Help & Troubleshooting] shonak24:
Is there a way to prevent those hardware issues? Maybe use custom kernel UC or something like that... I'm using nexus 5x and my warranty is about to run out
[Nexus 5X Q&A, Help & Troubleshooting] sfhub:
For hardware bootloop, I would say this behavior is highly YMMV.
[Nexus 5X Q&A, Help & Troubleshooting] sfhub:
If you could even flash the factory images, then it is likely you didn't have hardware bootloop in the first place.

If you want TWRP to stick, you need to install root (which modifiies the boot image) or modified boot image.
[Nexus 5X Q&A, Help & Troubleshooting] sfhub:
People are reporting they can't get refunds anymore.

Their options are to wait weeks for parts, get a G4 in exchange, or if you complain enough, sometimes they offer G5 in exchange.
[Nexus 5X Q&A, Help & Troubleshooting] Psychofrantics:
I am pretty certain that it was a hardware bootloop. I flashed images successfully many times but it will not boot past google logo. And I formated userdata plus cache every time. I formatted using stock recovery but no avail. I would try to boot twrp but it will be just a blank screen

I still have some problems. Today I tried to flash twrp and flash some mods but it froze midway. I have to flash factory image again. Than it frooze but restarted okay. So I am very scared to even restart it
[Nexus 5X Q&A, Help & Troubleshooting] nesoor1230:
I have the same case .I did the same process you did , the only difference that even twrp is working great . but all trials failed, the same freezing of boot animations. Also I have tried freezing and heating with no result. Now I send my Nexus 5x customers service awaiting for their action.
[Nexus 5X Q&A, Help & Troubleshooting] Cozmikk:
Reboot issue

With this freeze, did you get lines of different colored pixels on the screen? Sort of glitched out?
[Nexus 5X Q&A, Help & Troubleshooting] DMax525:
It seems like I've experienced the same issue. Is it possible that I get a full refund while I'm out of warranty? Did anyone do that? I bought it on 11/28/15
[Nexus 5X Q&A, Help & Troubleshooting] EeZeEpEe:
I think I have heard of people who were in your situation but not sure what they were able to do. If purchased through Google, didn't hurt to contact their customer support and see if they offer something.
[Nexus 5X Q&A, Help & Troubleshooting] DMax525:
Yeah, I've actually contacted them. And they offered me an officially refurbished 5X :D Do I have to try and claim a refund? It's not that I'm greedy, I am literally not sure that the same sort of thing won't happen to the replaced 5X in the future. I mean, the motherboard in it must come from the same factory with the same spoilage, right?
[Nexus 5X Q&A, Help & Troubleshooting] EeZeEpEe:
Yeah I figure it'll be a one time replacement kind of thing because I doubt they'll have any more left in a year or so. But who knows. For me, I just wanted another one to last until the Pixel 2.
[Nexus 5X Q&A, Help & Troubleshooting] DMax525:
Yeah, I wish I could afford the original Pixel at least. Well I think I'm gonna try and call for a refund. If they refuse, I'm gonna sell the refurbished one anyway though it's a bit low to sell the time bomb. But I should thank them even for this kind of offer 'cause they could've offered nothing at all since I'm out of warranty.
[Nexus 5X Q&A, Help & Troubleshooting] nesoor1230:
So if it was not bought through google and there no spare part how will the normal seller compensate me ?! . did anybody experience this case thanks .
[Nexus 5X Q&A, Help & Troubleshooting] DMax525:
In this case you have to contact LG and fill a repair application. If they really ran out of parts, they should offer you refund.
[Nexus 5X Q&A, Help & Troubleshooting] nitinvaid:
I have The Same Issue...:(:(

was using the phone on call and all of sudden it hangs and restarted and since then it stuck at google logo mine was unlocked with TWRP installed (why not thats why i bought nexus) sometimes i have managed to boot into recovery but it freeze there when i try to flash something and then again stuck at google logo i bought it from amazon india and yea its out of warranty bought it at release and the repair cost is like Rs 13000 which is like 200$ and i dont want to spend that much in this device do i have any solution to boot it it or just throw it????

EDIT: Sometimes it just stuck at recovery and start vibrating
[Nexus 5X Q&A, Help & Troubleshooting] zurik:
Try to boot into bootloader and flash the factory image with fastboot. But you will lose root and custom recovery. If the device remain into bootloop, is hardware issue.
[Nexus 5X Q&A, Help & Troubleshooting] JovieBrett:
Hi please help, I'm on step 5 but which heat sheet should I remove and how do I remove it?

EDIT:

Nvm, it's on the other side but it has a steel case on it so how do I remove it?

Also, can I ask what's these white lines are for?

And what are those two tiny gold pins are?

I hope these would all work as there's no other way like I can't even repair nor refund it to LG as my warrant has expired plus I only bought it from our local distributor here in the Philippines :'(
[Nexus 5X Q&A, Help & Troubleshooting] govindadas:
Just happened to me today, was just surfing the web in chrome on my N5X. I can get into fastboot mode, and it did boot into TWRP recovery once fully, but after attempting to back up photos, it backed up a few and froze then bootlooped. It almost booted normally a few times but froze on the colored circles animation.

Really bummed about my lost photos... warranty expired 3 weeks ago. I'm pretty pissed... luckily can get a replacement through nexus protect but have to pay deductible.

I can't imagine how I'd feel if it was a more expensive phone. Seems insane to pay so much for a device and have it only warrantied for a year! I tried to raise a fuss with Google but to no avail.

I'll try heating it up tomorrow. I just really want to get as many photos off it as I can.
[Nexus 5X Q&A, Help & Troubleshooting] Haik0:
Is this a region or batch specific issue or it can manifest randomly on any Nexus 5X in the world ?

I want to pick up a Nexus 5X and wondering if I can avoid/prevent this issue ?
[Nexus 5X Q&A, Help & Troubleshooting] JovieBrett:
I bet all 5X would suffer this problem, it's like your phone is sitting on a timebomb so it's better to avoid buying this, 6P and other LG devices

---------- Post added at 05:06 PM ---------- Previous post was at 04:54 PM ----------

Same with my situation, I can't accept the fact that my phone would all just die like this by it's because of its faulty hardware, the worse is Google and LG doesn't have any support outside US and Europe so we G4, 5X & 6P owners living in Asia just left out of the blue and litetally felt like threw $400 off the trash. I'm a student and it's even my first phone bought using my own money, I just hope heating the chip will fix this...
[Nexus 5X Q&A, Help & Troubleshooting] Haik0:
So you focused the heat mostly on that large Toshiba chip ? How is your phone holding up after a repair ? I wanted to get a second hand Nexus 5X for an affordable price (for a stock Android an good camera) and I was wondering if I can identify the issue before I buy ? or is it just too random to know anything about it before it manifests ?

Thanks for your report.

---------- Post added at 01:30 PM ---------- Previous post was at 01:22 PM ----------

Hey, thanks for sharing. Can you pleas give an update on the status of your 5X after the reflow ?

Thanks