Downgrade Nougat 7.0 to Marshmallow - T-Mobile LG V10 Q&A, Help & Troubleshooting

I was finally able to get LG to repair my V10 under warranty to fix that overheated processor issue! Which is great, I hear people were having trouble getting LG to respond. I just asked via Facebook messenger and things got rolling.
But now I received the phone back and it's got Nougat! Nooo!! The whole point of keeping the V10 was for the wide compatibility of rooting, Xposed, customization etc and now I'm afraid I'm stuck in Nougat hell. Is there a way to downgrade back to Marshmallow safely? I'm trying to search the answers but the results are somewhat chaotic. I read that a Samsung user was able to downgrade his S7 no problem. Please point me in the right direction, anyone.
Sent from my LG-H918 using Tapatalk

Not possible currently, unless some of the Devs can come up with a way.
Sent from my LG-H870 using Tapatalk

Crap. So if I try to flash a backup I made back in Marshmallow, I'll brick?
Sent from my LG-H918 using Tapatalk

Possibly, although i don't know for certain. Nor do I know how to flash a backup without TWRP or some other recovery.
Sent from my LG-H870 using Tapatalk

Sorry to bring this back up, but any news on this front?
Sent from my LG-H918 using Tapatalk

Dream Reality Syndrome said:
I was finally able to get LG to repair my V10 under warranty to fix that overheated processor issue! Which is great, I hear people were having trouble getting LG to respond. I just asked via Facebook messenger and things got rolling.
But now I received the phone back and it's got Nougat! Nooo!! The whole point of keeping the V10 was for the wide compatibility of rooting, Xposed, customization etc and now I'm afraid I'm stuck in Nougat hell. Is there a way to downgrade back to Marshmallow safely? I'm trying to search the answers but the results are somewhat chaotic. I read that a Samsung user was able to downgrade his S7 no problem. Please point me in the right direction, anyone.
Sent from my LG-H918 using Tapatalk
Click to expand...
Click to collapse
hello I'm in the same boat I got a V10 back from LG quote and quote repair shop and they f***** it up they f***** it up by first upgrading it to nougat and then be second they messed up the Google factory protection where I cannot log into my own phone. did you find a solution for downgrading from 7.0 to 6.0? in fact I had to V10 both of them useless pieces of crap 1 overheated hard brick and then the other is this LG shop defect thinking about switching to Samsung

Dream Reality Syndrome said:
I was finally able to get LG to repair my V10 under warranty to fix that overheated processor issue! Which is great, I hear people were having trouble getting LG to respond. I just asked via Facebook messenger and things got rolling.
But now I received the phone back and it's got Nougat! Nooo!! The whole point of keeping the V10 was for the wide compatibility of rooting, Xposed, customization etc and now I'm afraid I'm stuck in Nougat hell. Is there a way to downgrade back to Marshmallow safely? I'm trying to search the answers but the results are somewhat chaotic. I read that a Samsung user was able to downgrade his S7 no problem. Please point me in the right direction, anyone.
Sent from my LG-H918 using Tapatalk
Click to expand...
Click to collapse
I have seen that h901 30b and 30c both are on ARBv2. And luckily 20j and 20l are also on ARBv2 while 20e is on ARBv1. So it would be safe to downgrade an h901 from 30b or 30c to 20j or 20l using LGUP without any problems actually.

rizkhan999 said:
I have seen that h901 30b and 30c both are on ARBv2. And luckily 20j and 20l are also on ARBv2 while 20e is on ARBv1. So it would be safe to downgrade an h901 from 30b or 30c to 20j or 20l using LGUP without any problems actually.
Click to expand...
Click to collapse
I will be researching this point, thank you. I'm not sure what ARB is.
Sent from my LG-H918 using Tapatalk

Dream Reality Syndrome said:
I will be researching this point, thank you. I'm not sure what ARB is.
Sent from my LG-H918 using Tapatalk
Click to expand...
Click to collapse
You can find the kdzs here.
Edit: Try using uppercut to flash if lgup fails.

rizkhan999 said:
I have seen that h901 30b and 30c both are on ARBv2. And luckily 20j and 20l are also on ARBv2 while 20e is on ARBv1. So it would be safe to downgrade an h901 from 30b or 30c to 20j or 20l using LGUP without any problems actually.
Click to expand...
Click to collapse
i use, this method, but it does not work. as write in the lg g4 teme, it is necessary to edit kdz. as I understood, boot different for 6 and 7.
I have the same problem. bought h901 with android 7 without root & twrp
---------- Post added at 09:25 PM ---------- Previous post was at 09:16 PM ----------
https://www.youtube.com/watch?v=9Vk1TJ96eG4
firmware has already been modified. but what exactly is changed in it I did not understand (

rizkhan999 said:
I have seen that h901 30b and 30c both are on ARBv2. And luckily 20j and 20l are also on ARBv2 while 20e is on ARBv1. So it would be safe to downgrade an h901 from 30b or 30c to 20j or 20l using LGUP without any problems actually.
Click to expand...
Click to collapse
If I was to use this method, do I do "refurbish" in LGP Or "upgrade" In LGUP. I assume cause I would be going from 7.0 to 6.0 It would be refurbish. or does it not matter? I'm running the T mobile LGV10 H901 30c

BuildMineSurvive said:
If I was to use this method, do I do "refurbish" in LGP Or "upgrade" In LGUP. I assume cause I would be going from 7.0 to 6.0 It would be refurbish. or does it not matter? I'm running the T mobile LGV10 H901 30c
Click to expand...
Click to collapse
Use refurbish for downgrade. I guess it should matter.
@NestorRamUre
Did you use refurbish option or upgrade option (while downgrading from 30B to 20J or L)? May be you were using upgrade option, due to which you were getting the error. If so, try it with refurbish option.

rizkhan999 said:
Use refurbish for downgrade. I guess it should matter.
@NestorRamUre
Did you use refurbish option or upgrade option (while downgrading from 30B to 20J or L)? May be you were using upgrade option, due to which you were getting the error. If so, try it with refurbish option.
Click to expand...
Click to collapse
Yeah I tried it, and it just gets stuck on 7% and fails. So I flashed back to 7.0 and all is well.

why downgrade is possible on 961, but not possible on 901?! the same phone!

Still no decision to downgrade h901 from 30c?

rizkhan999 said:
Use refurbish for downgrade. I guess it should matter.
@NestorRamUre
Did you use refurbish option or upgrade option (while downgrading from 30B to 20J or L)? May be you were using upgrade option, due to which you were getting the error. If so, try it with refurbish option.
Click to expand...
Click to collapse
I used lgup to try to downgrade to 20L, 20J, 20e all don't work, tried Refurbish option, update option but all don't work, always failed. I think it's not possible to downgrade to marshmallow. LG sucks
Sent from my LG-H901 using XDA Free mobile app

I finally have an answer as to WHY you can't downgrade to MM even though ARB wasn't incremented.
When Nougat was released, the updated laf (download mode) to only flash KDZs that have a signature. MM KDZs don't have that signature.
If someone wants to get me the partition listing (instructions in the root thread), then you guys will have root again -- even on Nougat.
-- Brian

So we're you able to figure it out?
---------- Post added at 11:37 AM ---------- Previous post was at 11:34 AM ----------
runningnak3d said:
I finally have an answer as to WHY you can't downgrade to MM even though ARB wasn't incremented.
When Nougat was released, the updated laf (download mode) to only flash KDZs that have a signature. MM KDZs don't have that signature.
If someone wants to get me the partition listing (instructions in the root thread), then you guys will have root again -- even on Nougat.
-- Brian
Click to expand...
Click to collapse
Were you able to figure out if one could downgrade to mm on v10 h901?

No, it is not possible unless you are rooted, but I finally have a working root method for Nougat. Just waiting on @famewolf to provide me some information to see if it needs to be modified for the V10 (working on G4 and V20).
-- Brian

Fully working root for Nougat: https://forum.xda-developers.com/tmobile-lg-v10/general/root-h901-nougat-t3773942

Related

Rooted Lollipop to Marshmallow

Can I use LGUP to flash the .kdz for marshmallow over my rooted lollipop image using upgrade option in LGUP? Yes I want to lose root. I miss android pay to much.
Yes, as long as it's the whole .kdz image and not the update it will do a complete wipe of your phone to factory.
Is there a non OTA method to get to MM from LL?
drewcam888 said:
Is there a non OTA method to get to MM from LL?
Click to expand...
Click to collapse
http://forum.xda-developers.com/lg-v10/general/kdz-download-lollipop-kdz-10c-lg-servers-t3332348
go down till you see vs990 then click the link for 22A
use lg uptool to upgrade or refurbish your phone
please note, if you do want root, you are screwed to downgrade
LASERWOLF452 said:
http://forum.xda-developers.com/lg-v10/general/kdz-download-lollipop-kdz-10c-lg-servers-t3332348
go down till you see vs990 then click the link for 22A
use lg uptool to upgrade or refurbish your phone
please note, if you do want root, you are screwed to downgrade
Click to expand...
Click to collapse
these links still good?

RS988 KDZ or TOT pre v11c download that works

Does anyone have a firmware link for the RS988....im looking for pre V11C files.
I'd be willing to give you a tip for it!
Jesus, are you there?
hahah
https://lg-firmwares.com/lg-rs988-firmwares/
None of those are pre 11c. I can not say that those files even exist except for at LG and they never released anything besides 11c kdz for the USA rs988. Even so i don't think you could flash without bricking your phone because the anti roll back number for those is 0 and anything 11c and up has anti roll back of 1.
SPARTAN_TECH said:
https://lg-firmwares.com/lg-rs988-firmwares/
Click to expand...
Click to collapse
Ah sry i misread it thought was asking for 11c kdz
I flashed the RS98810d_00_0716_ARB01.kdz from that link and then proceeded to flash back to 11C from that link and then updated to 11D and stopped since I wanted to remain on Marshmallow for Xposed. However I wouldn't want to remain on 10D since it is Brightpoint and not what you want to be on with a non-brightpoint phone. Why are you wanting to be below 11C? You can't unlock and root your phone unless you are on 11D.

LG V30 H932 Unlocked Bootloader but Updated by mistake.

Ok, so first I apologise if this has been posted, but upon searching I found nothing.
Ok, so I unlocked my bootloader when I was still on 10d, but my friend updated my phone (I left it at his house to tamper with, never thinking he'd update it) and now is on 20o and has the October 2018 security patch.
All that to say, can I still achieve root (or twrp or magisk?) though my V30 has been updated but because my bootloader is unlocked?
And I'm quite familiar with rooting and unlocking bootloaders but LG phones throw my brain into a haze.
Any help would be appreciated, and thank you in advance.
RyanMychael said:
Ok, so I unlocked my bootloader when I was still on 10d, but my friend updated my phone (I left it at his house to tamper with, never thinking he'd update it) and now is on 20o and has the October 2018 security patch.
Click to expand...
Click to collapse
As long as you friend was "messing up" your phone why didn't he at least update you to the latest Oreo firmware? Some friend. T-Mobile H932 20o is old.
RyanMychael said:
Ok, so first I apologise if this has been posted, but upon searching I found nothing.
All that to say, can I still achieve root (or twrp or magisk?) though my V30 has been updated but because my bootloader is unlocked?
And I'm quite familiar with rooting and unlocking bootloaders but LG phones throw my brain into a haze.
Any help would be appreciated, and thank you in advance.
Click to expand...
Click to collapse
You searched and found nothing and know nothing about rooting the T-mobile H932? I find that hard to believe since the T-mobile H932 has been rooted since September 2018 and the thread is almost always prominently posted in the Guides section. Link posted below and the thread title is hilariously blunt and answers your question.
As you know or should know, for your T-Mobile H932, you will need to downgrade back to Nougat 10d to install TWRP and root. Ability to downgrade back to 10d has nothing to do with whether your bootloader is already unlocked or not. People on current T-mobile H932 20S can downgrade back to Nougat 10d to unlock bootloader, install TWRP and root.
As you know or should know, this method below is the only way to install TWRP and root the T-Mobile H932:
[ROOT] H932 - lafploit 1.5 (but you MUST downgrade to v10d)
(This method is ONLY for the T-mobile H932. Everyone uses the WTF method.)
Any further questions, please ask in that thread.
After you downgrade back to 10d, install TWRP and root, then you can use TWRP-flashable zip (ROM) to update to T-MOBILE H932 20S:
[STOCK] [H932] [20s] [Oreo] T-Mobile LG V30 Stock Collection (Includes Debloated)
RyanMychael said:
Ok, so first I apologise if this has been posted, but upon searching I found nothing.
Ok, so I unlocked my bootloader when I was still on 10d, but my friend updated my phone (I left it at his house to tamper with, never thinking he'd update it) and now is on 20o and has the October 2018 security patch.
All that to say, can I still achieve root (or twrp or magisk?) though my V30 has been updated but because my bootloader is unlocked?
And I'm quite familiar with rooting and unlocking bootloaders but LG phones throw my brain into a haze.
Any help would be appreciated, and thank you in advance.
Click to expand...
Click to collapse
Not going to make a long post.
Yes you can still roll back to 10D. Source? I bricked my device and recently just got it back from LG with the newest firmware on it. I'm rooted.
Sent from my LG-H932 using XDA Labs
BROKEN1981 said:
Not going to make a long post.
Yes you can still roll back to 10D. Source? I bricked my device and recently just got it back from LG with the newest firmware on it. I'm rooted.
Sent from my LG-H932 using XDA Labs
Click to expand...
Click to collapse
THANK YOU for the info.
I totally misunderstood it at first, but that's on me. Sometimes I'm dense.
What I should have said is, that it was unclear to me if I was able to root 20o or not.
Thank you either way.
RyanMychael said:
What I should have said is, that it was unclear to me if I was able to root 20o or not.
Thank you either way.
Click to expand...
Click to collapse
My post answers that question and tells you how. You have to downgrade back to Nougat 10d. Do you see the link?
Really, any further questions should be asked in that root thread AFTER you read the instructions.
ChazzMatt said:
THANK YOU for the info.
I totally misunderstood it at first, but that's on me. Sometimes I'm dense.
Click to expand...
Click to collapse
lol i love your super detailed, prompt responses. Keep it going man, you are our titan
RyanMychael said:
What I should have said is, that it was unclear to me if I was able to root 20o or not.
Thank you either way.
Click to expand...
Click to collapse
I've answered that for you.....
Sent from my LG-H932 using XDA Labs
I'll clarify, T-Mobile did not implement ABR. You are safe to downgrade to 10D as I said in my other post to you.
---------- Post added at 07:18 PM ---------- Previous post was at 07:12 PM ----------
ChazzMatt said:
THANK YOU for the info.
I totally misunderstood it at first, but that's on me. Sometimes I'm dense.
Click to expand...
Click to collapse
No worries. I had no idea if going back to 10D was safe or not. I tried it anyways since it seems LG will fix your device no matter what.
I also got my own device back. I put a piece of tape on the plastic sim holder. When I got my device back, that was the first thing I looked for.
Sent from my LG-H932 using XDA Labs
ChazzMatt said:
My post answers that question and tells you how. You have to downgrade back to Nougat 10d. Do you see the link?
Really, any further questions should be asked in that root thread AFTER you read the instructions.
Click to expand...
Click to collapse
??*
Okay so now I'm running into an issue where my phone is not recognized attempting to boot download mode or when booting into fastboot mode. Booting normally, the device is recognized.
RyanMychael said:
Okay so now I'm running into an issue where my phone is not recognized attempting to boot download mode or when booting into fastboot mode. Booting normally, the device is recognized.
Click to expand...
Click to collapse
Maybe you should ask in that thread.
RyanMychael said:
Okay so now I'm running into an issue where my phone is not recognized attempting to boot download mode or when booting into fastboot mode. Booting normally, the device is recognized.
Click to expand...
Click to collapse
Can you list all your steps?
Sent from my LG-H932 using XDA Labs

Downgrade from Pie to Oreo

Hi guys,
Pie is laggy and buggy on my phone. Like on battery saver mode vibration continue to work, and when multitasking it's embarrassingly slow! ... The overall experience is bad. A factory reset didn't solve anything.
I want to downgrade to Oreo 22j. Can someone please guide me on how to do it?
My phone is a stock H930 and I used LGUP to update.
Thank you
Blueice87 said:
Hi guys,
Pie is laggy and buggy on my phone. Like on battery saver mode vibration continue to work, and when multitasking it's embarrassingly slow! ... The overall experience is bad. A factory reset didn't solve anything.
I want to downgrade to Oreo 22j. Can someone please guide me on how to do it?
My phone is a stock H930 and I used LGUP to update.
Thank you
Click to expand...
Click to collapse
See post #2 of the EU H930 KDZ thread.
https://forum.xda-developers.com/showpost.php?p=79964731&postcount=2
It talks about how to downgrade for bootloader unlock, but it's still downgrading from Pie to Oreo. Same method.
Sent via open market LG US998 V30/V30+
Blueice87 said:
Hi guys,
Pie is laggy and buggy on my phone. Like on battery saver mode vibration continue to work, and when multitasking it's embarrassingly slow! ... The overall experience is bad. A factory reset didn't solve anything.
I want to downgrade to Oreo 22j. Can someone please guide me on how to do it?
My phone is a stock H930 and I used LGUP to update.
Thank you
Click to expand...
Click to collapse
Did you ever factory reset first?
Sent from my LG-H932 using XDA Labs
ChazzMatt said:
See post #2 of the EU H930 KDZ thread.
https://forum.xda-developers.com/showpost.php?p=79964731&postcount=2
It talks about how to downgrade for bootloader unlock, but it's still downgrading from Pie to Oreo. Same method.
Click to expand...
Click to collapse
Thank you so much. I am sorry, I missed that post
Back to smoothness again, feels so good. Hopefully next update will be better.
BROKEN1981 said:
Did you ever factory reset first?
Click to expand...
Click to collapse
Do you mean before the update? No I didn't. But I did after the update, which unfortunately resolved absolutely nothing.
Blueice87 said:
Hi guys,
Pie is laggy and buggy on my phone. Like on battery saver mode vibration continue to work, and when multitasking it's embarrassingly slow! ... The overall experience is bad. A factory reset didn't solve anything.
I want to downgrade to Oreo 22j. Can someone please guide me on how to do it?
My phone is a stock H930 and I used LGUP to update.
Thank you
Click to expand...
Click to collapse
My H930 was also laggy after the V30b OTA flashed with LG UP, even after the factory reset. Then I downgraded to 22j and flashed the V30b KDZ which became available in this time. Whole another world. Smooth as butter.
Edvin73 said:
My H930 was also laggy after the V30b OTA flashed with LG UP, even after the factory reset. Then I downgraded to 22j and flashed the V30b KDZ which became available in this time. Whole another world. Smooth as butter.
Click to expand...
Click to collapse
Hi Edvin73,
Sorry I didn't quite understand.
Did you receive an OTA update on your phone and it was laggy? Which method exactly worked well for you?
I flashed the KDZ available here on XDA with LGUP, and it was laggy for me.
Blueice87 said:
Hi Edvin73,
Sorry I didn't quite understand.
Did you receive an OTA update on your phone and it was laggy? Which method exactly worked well for you?
I flashed the KDZ available here on XDA with LGUP, and it was laggy for me.
Click to expand...
Click to collapse
No, I didn't receive the OTA. I flashed the leaked V30b OTA I got here on XDA. Because the experience on Pie was awful (choppy, very bad battery life) even after a factory reset, I reflashed 22j KDZ with LG UP and decided to wait for a official Pie roll out. Few days later, I found out that the official Pie upgrade is available through LG bridge. That did it. My phone is at least as smooth as on Oreo and the battery life is quite amazing but it obviously depends from personal usage. The only thing that seems different is the RAM management. Now uses more RAM with the same settings and installed apps. Regards.
PS: Completely stock, no root, no unlocked bootloader, no anything rather than complete stock.
Thank you for your answer.
Yes I also noticed that Pie uses more RAM than Oreo and the RAM management was bad and random. Maybe 4Go don't cut it anymore? I don't know.
Glad to hear that it's working perfectly for you. Unfortunately I can't update through LG Bridge, I get the "Cannot check the software version" error
It is the same for me, my battery life since I've updated my phone by OTA is awful, is it possible to downgrade without rooting my phone which I've never did?
Dual mode lgup in Android File Host
pr0de said:
It is the same for me, my battery life since I've updated my phone by OTA is awful, is it possible to downgrade without rooting my phone which I've never did?
Click to expand...
Click to collapse
See post #2 of the EU H930 KDZ thread.
HOW TO DOWNGRADE BACK TO OREO
https://forum.xda-developers.com/showpost.php?p=79964731&postcount=2
While it talks about how to downgrade for bootloader unlock, it's still just downgrading from Pie to Oreo. Same method, no matter the reason.
Downgrading to Oreo KDZ has nothing to do with root. It's just most people who downgrade are doing that so they can then unlock bootloader and root (on early Oreo).
But you can downgrade to most recent Oreo, whatever you wish.
Use the method in post #2, ignore the reason most people use it.
ChazzMatt said:
See post #2 of the EU H930 KDZ thread.
HOW TO DOWNGRADE BACK TO OREO
https://forum.xda-developers.com/showpost.php?p=79964731&postcount=2
While it talks about how to downgrade for bootloader unlock, it's still just downgrading from Pie to Oreo. Same method, no matter the reason.
Downgrading to Oreo KDZ has nothing to do with root. It's just most people who downgrade are doing that so they can then unlock bootloader and root (on early Oreo).
But you can downgrade to most recent Oreo, whatever you wish.
Use the method in post #2, ignore the reason most people use it.
Click to expand...
Click to collapse
Cheers I'm gona use this :good:
No issues on my device during the first week. Only stock Gallery app is slower and more laggy than before. It's like cache is not working there so every time I open some folder in Gallery it starts loading pictures from beginning which is causing lags.
Some other issues are there with Nova launcher and multitasksing, but this is due to this launcher. On stock everything is fine.
My LGUP showing "please use latest dll LAF protocol does not match"
Since I flashed v300l30f pie firmware on my lg v30 oreo. I started seeing this message "please use latest dll,LAF protocol does not match" .
I tried many common dll but nothing solved my problem.
Jxi581 said:
Since I flashed v300l30f pie firmware on my lg v30 oreo. I started seeing this message "please use latest dll,LAF protocol does not match" .
I tried many common dll but nothing solved my problem.
Click to expand...
Click to collapse
You need Dev Patched LGUP compatible with Pie.
You need to update to newest Dev Patched LGUP found in any of the Pie KDZ threads I maintain. Also found in Frankenstein thread.
Uninstall any prior version. Read Installation instructions carefully!
Can you provide me to the file for the pie patched dll. I am having the same issue
krayzieiyian23 said:
Can you provide me to the file for the pie patched dll. I am having the same issue
Click to expand...
Click to collapse
It's all here:
https://forum.xda-developers.com/lg-v30/development/h930-lg-v30-european-market-t3951898
krayzieiyian23 said:
Can you provide me to the file for the pie patched dll. I am having the same issue
Click to expand...
Click to collapse
We already answered that. Do you not read before posting?
Post #2 of this thread:
ChazzMatt said:
See post #2 of the EU H930 KDZ thread.
https://forum.xda-developers.com/showpost.php?p=79964731&postcount=2
It talks about how to downgrade for bootloader unlock, but it's still downgrading from Pie to Oreo. Same method.
Sent via open market LG US998 V30/V30+
Click to expand...
Click to collapse
Then again just above your question.
ChazzMatt said:
See post #2 of the EU H930 KDZ thread.
HOW TO DOWNGRADE BACK TO OREO
https://forum.xda-developers.com/showpost.php?p=79964731&postcount=2
While it talks about how to downgrade for bootloader unlock, it's still just downgrading from Pie to Oreo. Same method, no matter the reason.
Downgrading to Oreo KDZ has nothing to do with root. It's just most people who downgrade are doing that so they can then unlock bootloader and root (on early Oreo).
But you can downgrade to most recent Oreo, whatever you wish.
Use the method in post #2, ignore the reason most people use it.
Click to expand...
Click to collapse
Also told you 7 different places to get it in this forum...
ChazzMatt said:
You need Dev Patched LGUP compatible with Pie.
You need to update to newest Dev Patched LGUP found in any of the (6) Pie KDZ threads I maintain.
Also found in Frankenstein thread (in the instructions post).
Uninstall any prior version. Read Installation instructions carefully!
Click to expand...
Click to collapse

The touch does not work after installing h930 pie KDZ on us998 converted

Hello friends, I do not know if I have really damaged my phone. It is the h931 model converted to us998. Because of my desire to have a foot, I installed a KDZ of the European model h930. At the beginning the rom started without problems, after I noticed that it had no signal, I installed the Oreo us998 modem and it was still without a signal, so I went back to oreo us99820h and when it starts the screen it is welcome, the touch does not work for me. Any solution to this problem, I would appreciate suggestions and help. Thank you so much ♥
Yeriorlando said:
Hello friends, I do not know if I have really damaged my phone. It is the h931 model converted to us998. Because of my desire to have a foot, I installed a KDZ of the European model h930. At the beginning the rom started without problems, after I noticed that it had no signal, I installed the Oreo us998 modem and it was still without a signal, so I went back to oreo us99820h and when it starts the screen it is welcome, the touch does not work for me. Any solution to this problem, I would appreciate suggestions and help. Thank you so much ♥
Click to expand...
Click to collapse
You screwed up.
NEVER NEVER NEVER flash stock H930* firmware over any North American variants. It says so in all the Instructions.
You ignored all warnings. WHY? Every Pie H93O* KDZ and TWRP flashable zip says "ONLY for H930, H930G, H930D, H930DS. Do NOT ask if others can flash this!"
Flash back to US998 Nougat to repair your damage. PARTITION DL, all partitions in Dev Patched LGUP.
Then use one of the 4 workarounds in post #6 of the US998 PIE KDZ thread to update to US998 Pie.
Did you not read about those? They are mentioned top of post #2. Go to Post #6 of the US998 Pie KDZ. Workaround #3 and #4 work for everyone. Two people yesterday said #4 worked for them.
Here's one:
sisiimaji said:
This is great, I have follow Method #4 it works very well, I've been waiting for so long to achieved it . :good:
Click to expand...
Click to collapse
Go to first page and scroll down to post #6...
https://forum.xda-developers.com/lg-v30/development/us998-lg-v30-us998-us99830a000704-kdz-t3952256
same problem
ChazzMatt said:
You screwed up.
NEVER NEVER NEVER flash stock H930* firmware over any North American variants. It says so in all the Instructions.
You ignored all warnings. WHY? Every Pie H93O* KDZ and TWRP flashable zip says "ONLY for H930, H930G, H930D, H930DS. Do NOT ask if others can flash this!"
Flash back to US998 Nougat to repair your damage. PARTITION DL, all partitions in Dev Patched LGUP.
Then use one of the 4 workarounds in post #6 of the US998 PIE KDZ thread to update to US998 Pie.
Did you not read about those? They are mentioned top of post #2. Go to Post #6 of the US998 Pie KDZ. Workaround #3 and #4 work for everyone. Two people yesterday said #4 worked for them.
Here's one:
Go to first page and scroll down to post #6...
https://forum.xda-developers.com/lg-v30/development/us998-lg-v30-us998-us99830a000704-kdz-t3952256
Click to expand...
Click to collapse
Hello friend, thank you very much, method #4 worked perfectly for me. The problem is that the touch still does not respond .... Too bad!
woww.. It would be taking him to a technician or something. I didn't want to lose my phone that way.
Yeriorlando said:
Hello friend, thank you very much, method #4 worked perfectly for me. The problem is that the touch still does not respond .... Too bad!
woww.. It would be taking him to a technician or something. I didn't want to lose my phone that way.
Click to expand...
Click to collapse
Try temporarily flashing back to US998 Nougat via Partition DL mode, all partitions. See if that fixes touch. Then update to US998 Pie again.
same problem
ChazzMatt said:
Try temporarily flashing back to US998 Nougat via Partition DL mode, all partitions. See if that fixes touch. Then update to US998 Pie again.
Click to expand...
Click to collapse
The problem remains the same, brother. I just flashed Nougat and nothing.
Yeriorlando said:
The problem remains the same, brother. I just flashed Nougat and nothing.
Click to expand...
Click to collapse
I'm almost out of answers. All I can suggest is Partition DL to H933 Nougat. Temporarily. See if that works, then back to US998 Nougat, then update back to US998 Pie.
Is it possible your digitizer just happened to fail same time you were doing all this?
same problem
ChazzMatt said:
I'm almost out of answers. All I can suggest is Partition DL to H933 Nougat. Temporarily. See if that works, then back to US998 Nougat, then update back to US998 Pie.
Is it possible your digitizer just happened to fail same time you were doing all this?
Click to expand...
Click to collapse
Exactly, I think that by flashing that KDZ h930, some file or something that handles the hardware of the screen has broken.
fff
ChazzMatt said:
I'm almost out of answers. All I can suggest is Partition DL to H933 Nougat. Temporarily. See if that works, then back to US998 Nougat, then update back to US998 Pie.
Is it possible your digitizer just happened to fail same time you were doing all this?
Click to expand...
Click to collapse
Hello Friend. I've been thinking and well, could you tell me that a "Dump" file,? Could you solve the problem with that or is it more risky?
Yeriorlando said:
Hello Friend. I've been thinking and well, could you tell me that a "Dump" file,? Could you solve the problem with that or is it more risky?
Click to expand...
Click to collapse
Never used Dump file, so don't know. That's a function of LGUP where you can theoretically restore original partitions if you have a "dump" prior to making any changes. You've already made changes.

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