OnePlus 6Ts Mainboard got Frazzled - OnePlus 6T Questions & Answers

Whilst on holiday my OnePlus 6T got short-circuited (mainboard frazzled). After sending it to OP repair service they wanted to charge €300 for the replacement and install. I've decided to do it myself. My question is: I've bought an OP 6T mainboard with the original IMEI number. What do I need after inserting said mainboard? Is the operating (Oxygen OS) preinstalled or am I going ROOT & Stock ROM it. Any helpful suggestions would be appreciated.

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[HELP] firmware selection? and OTA updates

Hey,
i hope you guys can help me because im drowning with information here...
to make along story short.. i bought 2 p8 lite from germany few months ago... both was working great.
one of them fell into water and got damaged...
to fix it, i bought "new" mainboard also from germany. when i assembled it i discovered that its branded (vodafone).
it loads much slower then the other unbranded phone, and the much more disturbing issue is that almost none of the sensors are functioning (proximity, accelerometer,gyro) and second sim is disabled.
as far as i know is not a hardware malfunction, and i think that maybe it can be fixed by flashing new firmware.
the current version of the board is ALE-L21C02B130
i wanted to ask few things:
1. how can i know with version is suitable to my phone now (i want to unbrand it and to enable second sim)
2. once i flash it with other firmware will i be able to get OTA updates
thanks for helping

Is the H872PR version the same as H872 (T-Mobile)?

Hello all, I have the LG G6 H872PR, it's from Claro Puerto Rico, they were selling them at $317 with tax for a couple of days so I grabbed one obviously....this version doesn't let me change the launcher to the app drawer version nor let me download themes, also LG Smart World just ask me to connect the watch if I side-load it....My question if someone knows is....could I flash the T-Mobile kdz? I'm pretty sure it's the same phone and the PR in the model it's just the Claro software...
You can?
Were you able to do it? I'm looking for answers too. Thanks
I'm having the same thoughts. Also, I wonder if we're eligible for the 2-year warranty promise(?), the site won't accept my IMEI as valid so I assume not.
Is from lg caribbean, not us
http://www.lg.com/pa_en
max_mitsu said:
http://www.lg.com/pa_en
Click to expand...
Click to collapse
I registered my device on that site, unfortunately only got a 1-year warranty.
follow up on original question
Did anybody was able to flash H872PR with T-Mobile software.
Thank you.
So, did any one do it?
Has anyone tried it? The H872PR got no update at all, but the H872TN and H872BK already got oreo. I had checked the firmware at- lg-firmwares.com- . I want to get oreo but I'm not going to risk it
Darwish M Sukri said:
Has anyone tried it? The H872PR got no update at all, but the H872TN and H872BK already got oreo. I had checked the firmware at- lg-firmwares.com- . I want to get oreo but I'm not going to risk it
Click to expand...
Click to collapse
If anyone is wondering,
IT DOESN'T WORK
I took the risk. I flashed H872TN oreo to my Claro H872PR and it won't turn on at all. I did researches and tried everything and it wont boot at all.
Please, DO NOT TRY IT AT ALL COST.
:crying:
Darwish M Sukri said:
If anyone is wondering,
IT DOESN'T WORK
I took the risk. I flashed H872TN oreo to my Claro H872PR and it won't turn on at all. I did researches and tried everything and it wont boot at all.
Please, DO NOT TRY IT AT ALL COST.
:crying:
Click to expand...
Click to collapse
That's because all the G6 devices have different partition layouts.
christopherrrg said:
That's because all the G6 devices have different partition layouts.
Click to expand...
Click to collapse
Do you have any clue how to fix it?
Should I send it back to the seller? ( I didn't bought it from an official LG store, but it does have 1 year warranty)
I have contacted the seller. I told them the phone just won't boot at all. I also asked if the repairing procedures broke the water proofing, will they send a new unit.
And they replied "We will fix it with no cost at"
Do they really know how to fix it and is it possible?
I'm currently in the same situation as this guy https://forum.xda-developers.com/lg-g6/help/g6-hard-bricked-t3757370
But his phone is already fixed by RMA https://www.reddit.com/r/lgg6/comments/815ug3/lg_g6_hard_bricked/
Will it work on my phone?
Darwish M Sukri said:
Do you have any clue how to fix it?
Should I send it back to the seller? ( I didn't bought it from an official LG store, but it does have 1 year warranty)
I have contacted the seller. I told them the phone just won't boot at all. I also asked if the repairing procedures broke the water proofing, will they send a new unit.
And they replied "We will fix it with no cost at"
Do they really know how to fix it and is it possible?
I'm currently in the same situation as this guy https://forum.xda-developers.com/lg-g6/help/g6-hard-bricked-t3757370
But his phone is already fixed by RMA https://www.reddit.com/r/lgg6/comments/815ug3/lg_g6_hard_bricked/
Will it work on my phone?
Click to expand...
Click to collapse
Sadly no I do not. My aplogies. I just thought I should throw my 2 cents in about the partitions.
@Denversmartphone may be able to help you. I've noticed he posts lots of logs involving repairing G6s but he never really explains how it's done. From the logs we can see he restores from SD card but that's where my digging ends.
no hope to repair lg g6 in hard brick..i repair lg g6 dead boot yes but not in sd card way..all the way i try was wrong.. lg g6 is not unbrickable..i repair with jtag pro box... but you can only repair the h870 and the h873, i repair my h871 with loader of the h873 but not fixit..yes the phone will boot and can connect to pc, but the driver of the lcd are "caput" so in practis i cannot see the lcd even if you put it one new..i cannot fix my phone until someone release a h871 kdz...for the h872 there isn't any hope..but specialy for the lg g6 there isn't any hope for fix the dead boot..hope someone one day will find a way to fix it in qfil
Lg G6 H87220a .kdz
Somebody can put the download link of the Stock Rom of the Lg G6 H87220a .kdz, that is the new version of Android Oreo. I can not find anything in google.
Denversmartphone said:
no hope to repair lg g6 in hard brick..i repair lg g6 dead boot yes but not in sd card way..all the way i try was wrong.. lg g6 is not unbrickable..i repair with jtag pro box... but you can only repair the h870 and the h873, i repair my h871 with loader of the h873 but not fixit..yes the phone will boot and can connect to pc, but the driver of the lcd are "caput" so in practis i cannot see the lcd even if you put it one new..i cannot fix my phone until someone release a h871 kdz...for the h872 there isn't any hope..but specialy for the lg g6 there isn't any hope for fix the dead boot..hope someone one day will find a way to fix it in qfil
Click to expand...
Click to collapse
That's where a leaked engineering aboot would help like the V20 guys got. Unfortunately it doesn't work for the G6.
LG has us guys all chasing a pot of gold. The G6 is the first phone I've ever had this much trouble with but it's such a beautiful device.
jfernan said:
Somebody can put the download link of the Stock Rom of the Lg G6 H87220a .kdz, that is the new version of Android Oreo. I can not find anything in google.
Click to expand...
Click to collapse
https://lg-firmwares.com/
I downloaded it from here
---------- Post added at 10:19 PM ---------- Previous post was at 10:11 PM ----------
So, what should I do now?
Should I send my H872PR back to the seller? I just contacted the seller and said that the phone didn't boot at all. He told me he would fix it for no cost. (1year international warranty) Do you think the warranty work in this situation?
I bought it from China(took 2 weeks to arrive). But it wasn't an official LG store. Can they fix it??
---------- Post added at 10:35 PM ---------- Previous post was at 10:19 PM ----------
Denversmartphone said:
no hope to repair lg g6 in hard brick..i repair lg g6 dead boot yes but not in sd card way..all the way i try was wrong.. lg g6 is not unbrickable..i repair with jtag pro box... but you can only repair the h870 and the h873, i repair my h871 with loader of the h873 but not fixit..yes the phone will boot and can connect to pc, but the driver of the lcd are "caput" so in practis i cannot see the lcd even if you put it one new..i cannot fix my phone until someone release a h871 kdz...for the h872 there isn't any hope..but specialy for the lg g6 there isn't any hope for fix the dead boot..hope someone one day will find a way to fix it in qfil
Click to expand...
Click to collapse
My last resort is to send my H872PR back to the seller under 1year international warranty. Does the warranty apply in this situation?
Do you think they can fix it?
also, is it worth waiting 2 weeks just waiting for my phone to arrive at the seller?
well...i suggest you yes to give back to the seller, you have to say to him that somethink going wrong when come the update to you..so say i just update my mobile and the phone doesn't boot anymore..they will repair for free if it is in waranty...they have a professional and expencive box i think for repair phone..only lg have a official kdz file and loader for unbrick..nobody can unbrick without rawprogram.xml and patch..i have the firehose ufs for the lg g6 but without rawprogram and patch.xml we cannot unbrick
@Denversmartphone
He took the risk and it was his own decision. He bricked his phone.
You give him an advice to lie and cheat the seller.
If you were his seller would you give him this same advice as well? [emoji35]
Montechristo said:
@Denversmartphone
He took the risk and it was his own decision. He bricked his phone.
You give him an advice to lie and cheat the seller.
If you were his seller would you give him this same advice as well? [emoji35]
Click to expand...
Click to collapse
we lie everyday..sometimes all humans make a mistake and sometime not..sometime we lie and sometime not..btw lie is not that bad in this position..because also smartphone seller lie to us...they can give to us a simple unbrick file..but they didn't in this way you have to spend more money because you must replace a motherboard..and now tell me it is correct pay all my money just because i want experimentation somethink? the phone is not broken the phone just need his file again..and why i cannot repair and im forced to replace a motherboard?
Montechristo said:
@Denversmartphone
He took the risk and it was his own decision. He bricked his phone.
You give him an advice to lie and cheat the seller.
If you were his seller would you give him this same advice as well? [emoji35]
Click to expand...
Click to collapse
Yea, I agree with you. I don't like to lie either. But, should I tell the seller the truth? that I tried flashing wrong firmware (H872TN to my H872PR) just to get Oreo 8.0?
I'm afraid that if I tell the truth, they won't even bother trying to repair the phone at all.
And, even if they did repair it, do you know how much does it cost?

need urgent help !!!!!!!!!!

Someone please help
Ever since i restored twrp backup of another k6 power marshmallow stock rom
I am getting imei 0 problem for both sims
And baseband version unknown
Now both sims are not working
And service center guys are saying motherboard needs to be replaced and its not cover under warranty
Please someone help me to fix it ?
gtsfreak said:
Someone please help
Ever since i restored twrp backup of another k6 power marshmallow stock rom
I am getting imei 0 problem for both sims
And baseband version unknown
Now both sims are not working
And service center guys are saying motherboard needs to be replaced and its not cover under warranty
Please someone help me to fix it ?
Click to expand...
Click to collapse
Same thing happened to me. It took them 4 weeks to fix it. They fixed the faulty motherboard free of cost. It is under warranty by my experience... is your device still in warranty??
Have you tried installing a fresh new custom rom ? I had the same problem, but after I wiped everything and installed a new rom it was fixed.
---------- Post added at 06:04 AM ---------- Previous post was at 06:03 AM ----------
Or try using Xposed Module to change IMEI
My Lenevo k6power 4gb has been quoted a problem of reversed current in motherboard and due to this my mobile phone gats heated within fraction of seconds after connecting to charging.
If battery is not connected to motherboard then also it's got heated within few seconds of charging.
Please help me
You have to restore your baseband.
Read the tutorial below, don't get your mainboard replaced.
The service center guys probably don't know what has to be done or they're trying to fool you.
https://forum.xda-developers.com/k6-power/how-to/guide-restore-baseband-k6-note-imei-t4007861
Hit thanks if it helped!
rah.

Root or development mode detected on brand new LG G6

Hello,
I get an issue on my brand new LG G6. After booting it for the first time, I loaded my gmail account and downloaded my apps. Then I performed the upgrade to come to the latest firmware version.
So, no modification was done regarding bootloader, root access or development mode. Anyway my bank app refuses to start with the message "Root or development mode detected". How is this possible ?
Anyone is experiencing the same behavior ?
Do a fresh install using LGUP and uppercut
Where are you buy this phone ? It looks like a refurbished product..
Device was buyed in a mainstream shop. Package seemed brand new.
I flashed device with stock firmware and it is ok now. How does it come they sell refurbished as new devices ?
simselain said:
Device was buyed in a mainstream shop. Package seemed brand new.
I flashed device with stock firmware and it is ok now. How does it come they sell refurbished as new devices ?
Click to expand...
Click to collapse
Normally if it is reconditioned it is necessarily indicated, it's weird, was there a sticker on the box for the sealed warranty?
The new G6 has a very thin plastic screen protector to affix basic, was it present?

Update LS993zv6 to stock Oreo

A local repair shop replaced the motherboard in my daughter's LS993zv6 (SD card pins got mangled by a broken carrier). Anyway, the new motherboard is an unlocked one, I guess, as it has no Sprint bloat and, more importantly to me, it's still on Android 7.0 from 2017 with the May 2017 security update -- BUT with no option for downloading updates. I looked through the various threads, but I'm still stumped. I need her to get the OTA updates including Oreo and the regular security updates!
scottegos2 said:
A local repair shop replaced the motherboard in my daughter's LS993zv6 (SD card pins got mangled by a broken carrier). Anyway, the new motherboard is an unlocked one, I guess, as it has no Sprint bloat and, more importantly to me, it's still on Android 7.0 from 2017 with the May 2017 security update -- BUT with no option for downloading updates. I looked through the various threads, but I'm still stumped. I need her to get the OTA updates including Oreo and the regular security updates!
Click to expand...
Click to collapse
I think you need to use LG Bridge.

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