On 20a rooted with TWRP........want to downgrade to 10J MM (or 10d) keep root twrp - T-Mobile LG G5 Questions & Answers

Wondering if someone can give me little assistance.
So I am on 20a rooted with TWRP 3.1.1 but I want to downgrade to 10j MM.....(.10d would be ok too).....and I want to keep root and TWRP
1) So all the files I assume I need are here for 10J
https://forum.xda-developers.com/tm...ock-h830-10j-rom-flashable-zips-imgs-t3491363
2) What exactly do I need to flash in twrp, to properly downgrade to 10j from 20a, and keep root and twrp?
Say if I have all of these on the root of my phone
LG-H83010j-Flashable.COMPLETE-ARB01.zip
LG-H83010j-Flashable.Bootloader-ARB01.zip
LG-H83010j-Flashable.Modem-ARB01.zip
LG-H83010j-Flashable.Boot.zip
no-verify zip
TWRP 3.1.1.zip
does the COMPLETE zip also contain Modem, Bootloader and BOOT zips? or no?
Thanks much in advance.

Related

Root noob: downgraded, TWRP, rooted, flashed 6.0.1 now.....

Hey guys,
Got a Z3 with locked BL, decided recently I wanted to root the phone so followed the downgrade method, installed TWRP, installed 6.0.1 using this: http://forum.xda-developers.com/z3/general/stock-marshmallow-6-0-1-build-23-5-0-t3357509
That should have rooted the device and installed MM. MM seems to work ok but ES file explorer says there is no root. Also my TWRP recovery isn't working due to this problem (probably): http://forum.xda-developers.com/showpost.php?p=66232031&postcount=328
I'm a bit new to this but I can't seem to fix the TWRP problem without root access and I can't get root access without a custom recovery? I have Flashtool and tried to follow this method: http://forum.xda-developers.com/showpost.php?p=66232031&postcount=328
But I'm not sure how I'm meant to flash the required zips. Any help would be much appreciated, step by step would be a bonus xoxo
Tig
Flashed recroot before reboot?
Take a look here
http://forum.xda-developers.com/z3/general/d6603-5-0-2-flashable-stock-23-1-0-690-t3056361
Thanks, presuming I'd need to downgrade and root again. Trying to avoid that if possible...
Tig5 said:
Thanks, presuming I'd need to downgrade and root again. Trying to avoid that if possible...
Click to expand...
Click to collapse
http://forum.xda-developers.com/z3/general/recovery-root-mm-575-291-lb-t3435214

LG G5 H830 10a will not update

So I'm having an issue with updating my phone.
I have tried reading all of the threads, but so many things are still a mystery and are confusing. I haven't been able to get a full understanding of all of this.
I have a LG G5 H830 10a T-Mobile variant.
I am running Android 6.0.1
I have a custom recovery of TWRP
My phone is rooted with SuperSU also.
All I want to do, is to update my phone to Nougat. What is the process I have to go through? After reading all about it, here is my assumption:
I download Flashfire and use DisableService to disable my root and SuperSu, then I run the OTA Nougat update...
That didn't work. I got an error from TWRP that said:
"unable to flash update.zip from cache/update.zip, update is meant for "h1" device, your device is an H830"
Or something along those lines.
I have a Nandroid backup, so I'm not worried if I brick or soft brick it.
Any help please?
Thanks!
technocrat7 said:
So I'm having an issue with updating my phone.
I have tried reading all of the threads, but so many things are still a mystery and are confusing. I haven't been able to get a full understanding of all of this.
I have a LG G5 H830 10a T-Mobile variant.
I am running Android 6.0.1
I have a custom recovery of TWRP
My phone is rooted with SuperSU also.
All I want to do, is to update my phone to Nougat. What is the process I have to go through? After reading all about it, here is my assumption:
I download Flashfire and use DisableService to disable my root and SuperSu, then I run the OTA Nougat update...
That didn't work. I got an error from TWRP that said:
"unable to flash update.zip from cache/update.zip, update is meant for "h1" device, your device is an H830"
Or something along those lines.
I have a Nandroid backup, so I'm not worried if I brick or soft brick it.
Any help please?
Thanks!
Click to expand...
Click to collapse
You're not going to be able to update to Android N yet if you want to keep twrp and root. Only way to do it currently is if you have 100% stock phone and update via ota or using the zip file that was posted. If you don't care about root or twrp, update to 10j using the complete zip that autoprime posted and don't install SuperSU or dm-verity and let boot. You will have 100% stock and can take ota or use zip method. *** There is no current way to get root or twrp for t mobile version once on official android N yet *** So if root and twrp are important just wait until autoprime gets a chance to upload the flashable zip files for N to flash in twrp. You could also use cm or cm based Roms if you want android N, plus those are 7.1 stock is only 7.0, but if you want stock rooted just have to wait until it's released.
jeffsga88 said:
You're not going to be able to update to Android N yet if you want to keep twrp and root. Only way to do it currently is if you have 100% stock phone and update via ota or using the zip file that was posted. If you don't care about root or twrp, update to 10j using the complete zip that autoprime posted and don't install SuperSU or dm-verity and let boot. You will have 100% stock and can take ota or use zip method. *** There is no current way to get root or twrp for t mobile version once on official android N yet *** So if root and twrp are important just wait until autoprime gets a chance to upload the flashable zip files for N to flash in twrp. You could also use cm or cm based Roms if you want android N, plus those are 7.1 stock is only 7.0, but if you want stock rooted just have to wait until it's released.
Click to expand...
Click to collapse
Ohh okay, perfect thank you!
With that in mind, I had another question..
I have an LG V20 as well.
One thing I was thinking of doing was the following:
Unlocking the bootloader, putting a custom recovery like TWRP on it.
Make a Nandroid backup.
Then root it, and then go about my business. If something like this happens again and I want to update, I can simply do a Titanium Backup go to my Nandroid backup, restore it. Then update OTA, then reroot, run titanium backup restore, and then I'll be back where I left off.
will that work?
And one last question:
How would I go back to factory settings on my LG G5?
technocrat7 said:
Ohh okay, perfect thank you!
With that in mind, I had another question..
I have an LG V20 as well.
One thing I was thinking of doing was the following:
Unlocking the bootloader, putting a custom recovery like TWRP on it.
Make a Nandroid backup.
Then root it, and then go about my business. If something like this happens again and I want to update, I can simply do a Titanium Backup go to my Nandroid backup, restore it. Then update OTA, then reroot, run titanium backup restore, and then I'll be back where I left off.
will that work?
And one last question:
How would I go back to factory settings on my LG G5?
Click to expand...
Click to collapse
I'm not 100% sure but I don't think that would work as once you install twrp it modifies the recovery. IMG which would cause ota to fail. But on the other hand, you could most likely do the same method as the g5 to go back to official and take ota. Flashing the complete zip (if those are being created for the v20, haven't checked that thread as I don't own that device) and not re-installing the dm-verity or SuperSU will always reinstall the original boot.img and recovery.img and be 100% official stock. Hope this helps.
jeffsga88 said:
I'm not 100% sure but I don't think that would work as once you install twrp it modifies the recovery. IMG which would cause ota to fail. But on the other hand, you could most likely do the same method as the g5 to go back to official and take ota. Flashing the complete zip (if those are being created for the v20, haven't checked that thread as I don't own that device) and not re-installing the dm-verity or SuperSU will always reinstall the original boot.img and recovery.img and be 100% official stock. Hope this helps.
Click to expand...
Click to collapse
Thanks!
That helps a ton.
What is dm-verity though?
technocrat7 said:
Thanks!
That helps a ton.
What is dm-verity though?
Click to expand...
Click to collapse
The zip file we flash to disable force encryption (now this is part of the latest SuperSU zips).
jeffsga88 said:
The zip file we flash to disable force encryption (now this is part of the latest SuperSU zips).
Click to expand...
Click to collapse
Can you link to the latest superuser? Just wanna have it on hand for when the H830 N zip drops
carnivalrejectq said:
Can you link to the latest superuser? Just wanna have it on hand for when the H830 N zip drops
Click to expand...
Click to collapse
Here's the link to chainfires thread which will always have the latest beta supersu versions:
http://forum.xda-developers.com/apps/supersu/2014-09-02-supersu-v2-05-t2868133

Problem after flashing firmware and skipping Supersu

So recently I wanted to flash 20a via twrp on my G5 but it wasn't working. I reflashed 10i and my phone didn't want to boot up. So I decided to charge my phone after reflashing 10i once again without flashing supersu and I powered off the device and it turned back on with the "Your device is corrupt and it cannot be trusted sign" and so I tried to boot to recovery and my phone just factory reseted itself. I tried to boot into recovery with adb but to no avail. I even tried to flash 10d kdz and 10d tot both getting an error on LGUP and my phone is still stuck on firmware 10i. I even get an error when trying to update it with stock recovery. So now I have a phone with an unlocked boot loader and I cannot reroot again. Is there a way I can regain root? I knew I should have flashed supersu
RicardoSal24 said:
So recently I wanted to flash 20a via twrp on my G5 but it wasn't working. I reflashed 10i and my phone didn't want to boot up. So I decided to charge my phone after reflashing 10i once again without flashing supersu and I powered off the device and it turned back on with the "Your device is corrupt and it cannot be trusted sign" and so I tried to boot to recovery and my phone just factory reseted itself. I tried to boot into recovery with adb but to no avail. I even tried to flash 10d kdz and 10d tot both getting an error on LGUP and my phone is still stuck on firmware 10i. I even get an error when trying to update it with stock recovery. So now I have a phone with an unlocked boot loader and I cannot reroot again. Is there a way I can regain root? I knew I should have flashed supersu
Click to expand...
Click to collapse
I bet you didn't followed or read the 20a thread by autoprime nor did you bothered to read the TWRP thread as well. there's still a bug that prohibits you to downgrade from 20a unless you have a nandroid backup or a twrp recovery backup for the 10i. best option for now is to go back to 20a and wait for an update from the devs on fixing TWRP or try to follow the dirtycow method.
Jaistah said:
I bet you didn't followed or read the 20a thread by autoprime nor did you bothered to read the TWRP thread as well. there's still a bug that prohibits you to downgrade from 20a unless you have a nandroid backup or a twrp recovery backup for the 10i. best option for now is to go back to 20a and wait for an update from the devs on fixing TWRP or try to follow the dirtycow method.
Click to expand...
Click to collapse
The problem was that for some reason I couldn't update it but please pass the link to dirtycows :good:
RicardoSal24 said:
The problem was that for some reason I couldn't update it but please pass the link to dirtycows :good:
Click to expand...
Click to collapse
Look under the dev thread on autoprime topic about the stock N zips, if you read through last few pages you'll find all the links you need for recowvery to get root and twrp. Also if you're on 10i, why not just use lg up (make sure you either use older version or autoprime uppercut app) to flash 10D tot that already has twrp and then upgrade to stock 7 through twrp. Either way, all the info you need should be in last 3 pages of that thread by autoprime.
*** Edit ***
Just reread your post. If your getting errors flashing the 10D tot it's most likely due to you updating lg up, the .DLL, etc to install N. If so, uninstall lg up, and then download the lg up files and. DLL from the 10D thread. You can try uppercut app too as it's supposed to work between versions but I have not tested it myself. If all else fails then use the recowvery method.
jeffsga88 said:
Look under the dev thread on autoprime topic about the stock N zips, if you read through last few pages you'll find all the links you need for recowvery to get root and twrp. Also if you're on 10i, why not just use lg up (make sure you either use older version or autoprime uppercut app) to flash 10D tot that already has twrp and then upgrade to stock 7 through twrp. Either way, all the info you need should be in last 3 pages of that thread by autoprime.
*** Edit ***
Just reread your post. If your getting errors flashing the 10D tot it's most likely due to you updating lg up, the .DLL, etc to install N. If so, uninstall lg up, and then download the lg up files and. DLL from the 10D thread. You can try uppercut app too as it's supposed to work between versions but I have not tested it myself. If all else fails then use the recowvery method.
Click to expand...
Click to collapse
I've tried uppercut and I still get errors. I want to downgrade using the kdz file but the link is broken for me. Though I will try an older version of lgup. Thanks :good:
RicardoSal24 said:
I've tried uppercut and I still get errors. I want to downgrade using the kdz file but the link is broken for me. Though I will try an older version of lgup. Thanks :good:
Click to expand...
Click to collapse
Yeah not sure about uppercut. If you're still on 10i you should be fine using lgup to downgrade as long as you use the right version of lgup and h830 .DLL file. Also I'm not sure you can use refurbish option with kdz, but I know you can with tot. So maybe downgrade to 10D using tot and upgrade through twrp. If all else fails, use the recowvery steps on the above linked thread and you should be all good. Quick question, when you first start your phone, does it just show phone can not be checked for corruption or does it show the message can't be checked for corruption and visit this site... Etc. ? Reason I ask is the second message is updated bootloader and you won't be able to use lg up to flash MM firmware until you downgrade your bootloader.
jeffsga88 said:
Yeah not sure about uppercut. If you're still on 10i you should be fine using lgup to downgrade as long as you use the right version of lgup and h830 .DLL file. Also I'm not sure you can use refurbish option with kdz, but I know you can with tot. So maybe downgrade to 10D using tot and upgrade through twrp. If all else fails, use the recowvery steps on the above linked thread and you should be all good. Quick question, when you first start your phone, does it just show phone can not be checked for corruption or does it show the message can't be checked for corruption and visit this site... Etc. ? Reason I ask is the second message is updated bootloader and you won't be able to use lg up to flash MM firmware until you downgrade your bootloader.
Click to expand...
Click to collapse
Updated bootloader? I had no idea that was a problem. But since I'm on 20a i get the corruption message plus the link so O guess my bootloader is upgraded. How exactly DO you downgrade the bootloader?
I will mention that I'm stuck without twrp
RicardoSal24 said:
Updated bootloader? I had no idea that was a problem. But since I'm on 20a i get the corruption message plus the link so O guess my bootloader is upgraded. How exactly DO you downgrade the bootloader?
I will mention that I'm stuck without twrp
Click to expand...
Click to collapse
Okay since you have an upgraded bootloader and no twrp you will have to follow the steps in that post for recowvery which will give you Root and twrp. Once you have twrp, download the bootloader zip for whichever version you're planning on downgrading to (I.e. 10I bootloader if flashing 10i kdz) from autoprime and flash in twrp. You can also flash the complete zip (i.e. 10I complete zip) in twrp after flashing the 10I bootloader if you want to keep root and twrp (you will also have to flash SuperSU after flashing those files). But you can also flash kdz or tot with lg up after downgrading bootloader via twrp but you will lose root and twrp unless you flash 10D rooted tot.
jeffsga88 said:
Okay since you have an upgraded bootloader and no twrp you will have to follow the steps in that post for recowvery which will give you Root and twrp. Once you have twrp, download the bootloader zip for whichever version you're planning on downgrading to (I.e. 10I bootloader if flashing 10i kdz) from autoprime and flash in twrp. You can also flash the complete zip (i.e. 10I complete zip) in twrp after flashing the 10I bootloader if you want to keep root and twrp (you will also have to flash SuperSU after flashing those files). But you can also flash kdz or tot with lg up after downgrading bootloader via twrp but you will lose root and twrp unless you flash 10D rooted tot.
Click to expand...
Click to collapse
Can you please give the link to the thread you're talking about?
RicardoSal24 said:
Can you please give the link to the thread you're talking about?
Click to expand...
Click to collapse
The thread is:
http://forum.xda-developers.com/tmobile-lg-g5/development/stock-h830-20a-rom-flashable-zips-imgs-t3511294
If you're just trying to get twrp and root to downgrade look at the last 5 or so pages and look for the recowvery post. Once you do that visit:
http://forum.xda-developers.com/tmobile-lg-g5/development/stock-h830-10j-rom-flashable-zips-imgs-t3491363
and download the bootloader zip and then boot into twrp and flash the bootloader zip. Then you can use lg up to flash kdz file or tot file. If you want to do everything from twrp and skip lg up step just download the complete zip from the 10J thread and flash in twrp after flashing bootloader, then if you want to keep twrp and root make sure after flashing bootloader and complete zip in twrp flash SuperSU before rebooting.
jeffsga88 said:
The thread is:
http://forum.xda-developers.com/tmobile-lg-g5/development/stock-h830-20a-rom-flashable-zips-imgs-t3511294
If you're just trying to get twrp and root to downgrade look at the last 5 or so pages and look for the recowvery post. Once you do that visit:
http://forum.xda-developers.com/tmobile-lg-g5/development/stock-h830-10j-rom-flashable-zips-imgs-t3491363
and download the bootloader zip and then boot into twrp and flash the bootloader zip. Then you can use lg up to flash kdz file or tot file. If you want to do everything from twrp and skip lg up step just download the complete zip from the 10J thread and flash in twrp after flashing bootloader, then if you want to keep twrp and root make sure after flashing bootloader and complete zip in twrp flash SuperSU before rebooting.
Click to expand...
Click to collapse
Is there a video using the g5? I found only one and thats with the v20 and the guy in the video doesn't have much of a close up to his laptop
RicardoSal24 said:
Is there a video using the g5? I found only one and thats with the v20 and the guy in the video doesn't have much of a close up to his laptop
Click to expand...
Click to collapse
I don't think so but not 100% sure. If you follow the steps carefully you'll be fine. I didn't directly post the recowvery steps as I have not used this (I've had twrp and root since 10D). You can look on the v20 thread as it has a post for the v20 and our h830 recowvery method. Sorry I can't be more help with that specifically.
jeffsga88 said:
I don't think so but not 100% sure. If you follow the steps carefully you'll be fine. I didn't directly post the recowvery steps as I have not used this (I've had twrp and root since 10D). You can look on the v20 thread as it has a post for the v20 and our h830 recowvery method. Sorry I can't be more help with that specifically.
Click to expand...
Click to collapse
You were helpful enough :good:

Root Guide for Lg G5 Tmobile on 20i Nougat?

So I've been doing a little bit of research, trying to figure out how to root my phone. I read I needed to downgrade my Security patch to something lower than 20i. I can probably figure out how to root it if I had a guide to downgrade my phone. Anyway I thought I'd ask this amazing community for some help! Thanks guys!
tuff3r said:
So I've been doing a little bit of research, trying to figure out how to root my phone. I read I needed to downgrade my Security patch to something lower than 20i. I can probably figure out how to root it if I had a guide to downgrade my phone. Anyway I thought I'd ask this amazing community for some help! Thanks guys!
Click to expand...
Click to collapse
Just follow the steps to flash 20a in that thread with LGUP. No other steps required. Just do a factory reset then flash 20a then root. If your phone is buggy after flashing 20a do another factory reset then root. After rooting you can follow the guide to flash 20i using TWRP.
Sent from my LG-H830 using Tapatalk
Sdobron said:
Just follow the steps to flash 20a in that thread with LGUP. No other steps required. Just do a factory reset then flash 20a then root. If your phone is buggy after flashing 20a do another factory reset then root. After rooting you can follow the guide to flash 20i using TWRP.
Sent from my LG-H830 using Tapatalk
Click to expand...
Click to collapse
Could you link what is the better steps to follow
I already try downgrade flash 20a with LGUP, without success.
eekthecat said:
Could you link what is the better steps to follow
I already try downgrade flash 20a with LGUP, without success.
Click to expand...
Click to collapse
Here is link for downgrading using LGUP
https://forum.xda-developers.com/tmobile-lg-g5/development/stock-h830-20a-rom-flashable-zips-imgs-t3511294
Here is alternative method for downgrading using lg Flashtool
https://forum.xda-developers.com/lg-g5/how-to/bring-lg-g5-to-life-download-mode-lgup-t3565508
Here is link for rooting
https://forum.xda-developers.com/tmobile-lg-g5/how-to/guide-root-twrp-lg-g5-using-t3580264
Tell me outcomes
dksoni411 said:
Here is link for downgrading using LGUP
https://forum.xda-developers.com/tmobile-lg-g5/development/stock-h830-20a-rom-flashable-zips-imgs-t3511294
Here is alternative method for downgrading using lg Flashtool
https://forum.xda-developers.com/lg-g5/how-to/bring-lg-g5-to-life-download-mode-lgup-t3565508
Here is link for rooting
https://forum.xda-developers.com/tmobile-lg-g5/how-to/guide-root-twrp-lg-g5-using-t3580264
Tell me outcomes
Click to expand...
Click to collapse
thank you so much
I have previously tried to root after I went to 20l but wasn't successful. I read about how I needed to downgrade to 20a, then root. However, I had errors when I tried to install the 20a KDZ file with LGUP. My bootloader is unlocked. Does anyone know if you can successfully downgrade and root from 20l?
Update, I was successfully able to downgrade from 20l to 20a, root, then flash autoprime's 20l zip via TWRP. Here is the shortened version of the steps I used.
1. Turn off virus scanner
2. Have latest SU, No verify zip, and 20l flashable zip on SD card
3. Factory data reset on current version (was 20l)
4. Developer options enabled
5. Turn on USB Debugging
6. Plug in to computer, prompt comes up on phone, accept
Do all the steps to unlock the bootloader (mine was already unlocked since I previously tried to do this)
7. Run “Upper Cut” (after LGUP installed)
8. “Upgrade” with 20a KDZ
9. Now on 20a, fresh install, go back in and enable developer options
10. Turn on USB Debugging
11. Plug in to computer, prompt comes up on phone, accept
12. Use Minimal ADB and Fastboot to run all the commands from this post https://forum.xda-developers.com/tmobile-lg-g5/development/root-h830-20a-nougat-lg-g5-hard-t3542496
13. While in TWRP, wipe data, install op sys, install SU and no verify zips.
Quick question, i am using t-mobile H83020i only GSM network, if i downgrade to 20a do i lose GSM unlock?
(I read a lot about people with that problem when downgrading)

T-Mobile LG G5 on stock Oreo (H83030c)

Is there a way to install a custom ROM on a LG G5 running stock Oreo? Can the stock firmware be downgraded to one of the stock nougat builds to help with bootloader unlock and TWRP install?
subaron said:
Is there a way to install a custom ROM on a LG G5 running stock Oreo? Can the stock firmware be downgraded to one of the stock nougat builds to help with bootloader unlock and TWRP install?
Click to expand...
Click to collapse
Yes, you can downgrade 30c to 20a, then unlock bootloader and install TWRP.
Is there a guide on how to do this? Thanks
I never found a solution to this and ended up getting a new phone. But that new phone just brokeand I am back to using the LG G5 again.
So now I am looking for a way to downgrade to 20a and the files needed to unlock the bootloader.
Appreciate any help provided.
subaron said:
I never found a solution to this and ended up getting a new phone. But that new phone just brokeand I am back to using the LG G5 again.
So now I am looking for a way to downgrade to 20a and the files needed to unlock the bootloader.
Appreciate any help provided.
Click to expand...
Click to collapse
Here this should help
https://www.youtube.com/watch?v=EOwYONhW0xE
subaron said:
I never found a solution to this and ended up getting a new phone.
Click to expand...
Click to collapse
Hi subaron what version are you on now? If you are on the latest 30C then you need to downgrade to 20A stock ROM first.
You must download the 20A kdz file and flash it with UPPERCUT. Then you enable Developer Options and can follow the info in this thread on how to install TWRP recovery and root. The only thing different from those directions is: instead of SuperSU, install Magisk.
Once you have rooted 20A with TWRP installed, then you copy the 30C COMPLETE .zip to the sdcard, reboot into recovery, and install that and install Magisk once again.

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