[H910][Oreo][Stock][Rooted] AT&T LG V20 Stock Oreo rooted flashable zip

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rodogg88

Senior Member
Oct 30, 2010
63
15
good night all. I installed this rom into my h-910 maybe a year ago and it worked fine until i installed an update to magisk that threw a soft-brick (showed a lg crash screen). After reading some messages online, I went ahead and flashed the rom again and got the phone working. after installing a new version of magisk, the soft-brick came back. I one again reflashed the rom and since I didnt add anything to the phone, no loss for the second flash.

after flashing the phone and installing a stable magisk, i started to add my info back to the phone. I started noticing that some apps on my phone flicker black and white whenever i open them. not the entire app, just parts of it like the top of the app etc. it happens with a handful of apps and i notice doesnt really affect me using them.

recently, i noticed that the usb connection menu pops up and defaults to charging another device aka use your phone as a power bank. I dont know if its related. the LG theme app seems to crash when i am downloading a theme.

does anyone have any idea whats going on with my phone? if i need to get a new phone or flash the rom again? thanks

also, whats does the mk kernel do?
 

dornz

Senior Member
Feb 19, 2013
518
92
Hi sorry to here about that, handy phone they are, unfortuneitly,i dont have one anym0re and as it was passed on and ended up smashed as they do
 

Fouzzi

New member
Dec 28, 2020
3
0
ok .. I'll post it again
The Rom is stock untouched files from the 20H OTA
all that's added is a rooted boot.img and the Eng Aboot

if that breaks the Data blame LG ...All my phone's work fine on AT&T / Mint Sim and T-mobile after setting the correct APN
We have 4 H910 rooted on Oreo 20H no problems
Hi, what if I wanna flash the H91020H stock ? Can you please provide that ? :)
 

clsA

Senior Member
Aug 28, 2010
9,823
3,458
Central Florida
Hi, what if I wanna flash the H91020H stock ? Can you please provide that ? :)
The rooted rom H910_20h_Oreo_full_rooted.zip includes all the files of the stock rom
all you have to do is open the zip in winrar / 7zip
rename the current aboot to aboot.rooted
and boot to boot.rooted
and rename the 2 changed files they will likely be named aboot-copy to aboot
and v20h_stock_boot.img to boot

save the zip and flash it you now have stock 20H
 

xiaomiyaaa

Member
Feb 24, 2021
44
19
@clsA

Hello my friend :) I have a question, I have h910-10r.zip file which I can installs in TWRP... I have lineageOS now 18.1, but I want latest possible firmware update for LG V20 H910

Can i install 10r.zip in TWRP, then OTA update to latest update in stock LG then install lineageos in TWRP again over it? or it remove my TWRP recovery or break dirtysanta when i ota update? (I no need root i need just latest firmware + LineageOS :) )

i not care about fingerprint sensor , me not use it :)
 

clsA

Senior Member
Aug 28, 2010
9,823
3,458
Central Florida
@clsA

Hello my friend :) I have a question, I have h910-10r.zip file which I can installs in TWRP... I have lineageOS now 18.1, but I want latest possible firmware update for LG V20 H910

Can i install 10r.zip in TWRP, then OTA update to latest update in stock LG then install lineageos in TWRP again over it? or it remove my TWRP recovery or break dirtysanta when i ota update? (I no need root i need just latest firmware + LineageOS :) )

i not care about fingerprint sensor , me not use it :)
sorry but theirs no way to take an OTA update without loosing twrp and the patched aboot
the last rooted rom is 20h, their nothing to gain by going to 20i
 

xiaomiyaaa

Member
Feb 24, 2021
44
19
sorry but theirs no way to take an OTA update without loosing twrp and the patched aboot
the last rooted rom is 20h, their nothing to gain by going to 20i

hmmm :/ I not care about root... if I OTA to 20i is possible to dirtysanta or it not work anymore?

Do you know what is latest security patch LG v20 h910? is possible for you to make flashabl latest h910 stock firmware .zip no root with recently most the security patch? :/
 

clsA

Senior Member
Aug 28, 2010
9,823
3,458
Central Florida
hmmm :/ I not care about root... if I OTA to 20i is possible to dirtysanta or it not work anymore?

Do you know what is latest security patch LG v20 h910? is possible for you to make flashabl latest h910 stock firmware .zip no root with recently most the security patch? :/
No I have no idea what the last security patch does and no I have no intention of making another rom for this device
I had 4 at one time and they are all gone now. The oldest phone in my collection now is an Essential phone.
 
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xiaomiyaaa

Member
Feb 24, 2021
44
19
No I have no idea what the last security patch does and no I have no intention of making another rom for this device
I had 4 at one time and they are all gone now. The oldest phone in my collection now is an Essential phone.

ok thx

i want flash "H910_20g_Oreo_full_stock_Tested" from your androidfilehost... I flash in 20g.zip twrp and then I flash TWRP.img after 20g.zip before reboot device right? I need make to backup for modem or something like it? after this I format but keep vendor and install lineageOS above it is work okay? this way it give oreo firmware?
thx so mach my friend:))
 

parag0n1986

Member
May 3, 2015
23
2
35
LG V20
OnePlus 7T Pro
Hi
I have lgv20 h910.
I flashed h910_20h_oreo_full_rooted.
I flashed kernel h910_v1.4-beta13-mk2000.
And magisk flashed too.
Now i have crash.
When i have crash must press down volum and restart my phone.
Plz help for fix it.
I'm having the same issue... Won't even boot into TWRP. Can I flash the Full nandroid backup I have from an external SD card with no computer?
 

clsA

Senior Member
Aug 28, 2010
9,823
3,458
Central Florida
Did you ever solve this? Can I flash my TWRP backup from an SD card without a computer? H910 with same issue
If you can still boot to TWRP you can flash the rom again or flash the backup
If you have lost TWRP you have to start at the beginning and re install the eng Aboot with dirty santa

the mistake here is flashing magisk on the rooted rom
all you need is magisk manager the boot.img is already patched
 
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clsA

Senior Member
Aug 28, 2010
9,823
3,458
Central Florida
ok thx

i want flash "H910_20g_Oreo_full_stock_Tested" from your androidfilehost... I flash in 20g.zip twrp and then I flash TWRP.img after 20g.zip before reboot device right? I need make to backup for modem or something like it? after this I format but keep vendor and install lineageOS above it is work okay? this way it give oreo firmware?
thx so mach my friend:))
I never used Lineage on this device so I don't know if it works on oreo firmware or not ...sorry
 
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parag0n1986

Member
May 3, 2015
23
2
35
LG V20
OnePlus 7T Pro
If you can still boot to TWRP you can flash the rom again or flash the backup
If you have lost TWRP you have to start at the beginning and re install the eng Aboot with dirty santa

the mistake here is flashing magisk on the rooted rom
all you need is magisk manager the boot.img is already patched
Thank you very much for helping me out! So just follow the rooting method like normal and all should be fine? Can I just restore my TWRP nandroid backup one I get it to boot too recovery, or better to just start fresh like I haven't rooted it at all yet?
 

parag0n1986

Member
May 3, 2015
23
2
35
LG V20
OnePlus 7T Pro
Thank you very much for helping me out! So just follow the rooting method like normal and all should be fine? Can I just restore my TWRP nandroid backup one I get it to boot too recovery, or better to just start fresh like I haven't rooted it at all yet?
Update... I started entire dirtysanta method over. After the kdz flash my phone was stuck in a bootloop on the LG logo, but no more kernel crash. The only way I got it to boot to the system was to pull the battery for a few minutes and plug the phone in after reinserting the battery and it finally worked. Now rooted and running Lineage OS 18.1 Unofficial. I did a clean flash right from the nougat ROM to it, and so far everything works fine. Camera is a little slow, but I don't use it much. Thank you @clsA for helping me out and everyone else who posted problems for me to read through. I hope this helps someone else out!
 

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  • 1
    hmmm :/ I not care about root... if I OTA to 20i is possible to dirtysanta or it not work anymore?

    Do you know what is latest security patch LG v20 h910? is possible for you to make flashabl latest h910 stock firmware .zip no root with recently most the security patch? :/
    No I have no idea what the last security patch does and no I have no intention of making another rom for this device
    I had 4 at one time and they are all gone now. The oldest phone in my collection now is an Essential phone.
    1
    Did you ever solve this? Can I flash my TWRP backup from an SD card without a computer? H910 with same issue
    If you can still boot to TWRP you can flash the rom again or flash the backup
    If you have lost TWRP you have to start at the beginning and re install the eng Aboot with dirty santa

    the mistake here is flashing magisk on the rooted rom
    all you need is magisk manager the boot.img is already patched
    1
    ok thx

    i want flash "H910_20g_Oreo_full_stock_Tested" from your androidfilehost... I flash in 20g.zip twrp and then I flash TWRP.img after 20g.zip before reboot device right? I need make to backup for modem or something like it? after this I format but keep vendor and install lineageOS above it is work okay? this way it give oreo firmware?
    thx so mach my friend:))
    I never used Lineage on this device so I don't know if it works on oreo firmware or not ...sorry
  • 19
    Good Morning

    New: Well AT&T updated us to Sept Security patch
    here's the new Stock rooted rom > H910_20h_Oreo_full_rooted.zip > https://www.androidfilehost.com/?fid=1322778262904015326

    Tested by @darkknight200
    i dirty flashed over the 20g rooted setup. It booted up fine and works like normal.
    Now have to debloat att apps and restore twrp. This time i used twrp app to restore twrp right in system and it worked properly. Saves the hassle to go into fastboot to push twrp.

    All in all those are minor inconveniences, The zip is fine.
    Thanks allot man.

    After @NotYetADev posted his VS995 rooted Oreo We decided to give it a try on the H910.

    It's not perfect but it does work. You'll need to Format Data and flash the H910_20g_Oreo_full_rooted.zip + the Newest - H910_mk2000 kernel from recovery-twrp-h910-2018-10-18.img

    Your phone will be wiped and updated to Stock rooted Oreo so backup your phone first!

    If you have never rooted your H910 you'll need to use the guide here first > https://forum.xda-developers.com/v20/how-to/root-h910-v10m-t3664500

    Note: when you get where you would flash 10r just use my rom instead. Don't forget to flash the kernel after the rom
    Note2: Flash TWRP again before you reboot (Install / Install Image / recovery-twrp-h910-2018-10-18.img to Recovery

    It's also recommended to use the new TWRP for Oreo found here > https://forum.xda-developers.com/v20/development/recovery-twrp-3-2-1-0-t3720239
    Note: you'll have to flash TWRP back to the phone after flashing the rom and kernel because it installs stock recovery.

    If you have any problems getting DATA on any sim other than AT&T check this post to fix your APN > https://forum.xda-developers.com/showpost.php?p=79619740&postcount=244
    Thanks @StrikerTheHedgefox

    After your phone is setup be sure and install the Magisk apk

    Hide unlocked Bootloader warning boot screen by 4shared < This removes the ugly pink and black screen on reboot. I tested it and it works great

    Huge thanks go to @darkknight200 and @askermk2000 for the Idea and the kernel.
    3
    Can you just flash the Oreo rom from recovery and then flash TWRP recovery back from the same recovery session in TWRP without rebooting or do you neeed to boot up once into the Oreo version of the Rom with the stock recovery before putting TWRP back?

    ---------- Post added at 12:30 PM ---------- Previous post was at 12:27 PM ----------



    Did you check the MD5 hash on the download before installing it? You apparently also need to use the Oreo-compliant newer version of TWRP to flash it. There is a link for that in the main post.

    Hey, saw that this wasn't answered yet. Here is how I flashed both v20g and v20h. I did exactly what you're asking about. I flashed Oreo, then re-flashed the correct Oreo version of TWRP from the same recovery session. It worked both times. Obviously when I went from v20g to h, I did not fully wipe, I just dirty flashed right over it. There's no reason you can't just flash v20h directly, at least I don't think so; it should be a full image and not a differential update. These instructions will assume you're going from anything Nougat based to Oreo. You have to install the Oreo version of TWRP as your first step, and then reboot (from within TWRP) into recovery again. Don't try flashing Oreo using the older versions of TWRP. These instructions assume you're already on the proper version of TWRP!

    1. I made a full nandroid backup. I chose system, not system image and data, not the beta option that includes media. I usually just copy /sdcard over to /external-sd and rename it to /external-sd/.sdcard
    2. I went into the Wipe menu, and completely wiped "system" and then also chose the option to wipe "data" without wiping /data/media. Don't remember if it matter or not. Pretty sure it didn't, and my "internal SD card" was wiped. That's why I copied the entire thing in Step 1
    3. Flashed v20h ZIP
    4. Flashed mk2000 ZIP
    5. Flashed Magisk 17.1 ZIP - I've been informed this step is superfluous since mk2k is already patched for Magisk, but it didinstall Magisk Manager for me, so, do what you want.
    6. Flashed TWRP Image
    7. Went one step further and did all of my debloating before first boot! I've added two screenshots at the bottom to show what I copied off to the SD card and then completely deleted from /system/ - Wi-Fi Calling still works (AT&T customer)
    8. Wipe cache and dalvik
    9. "Fix Contents" (because you've been using TWRP to manually delete things in /system/)
    10. "Reboot to System"

    It powered up, went straight to the AT&T logo (when I went from v20g to v20h - when I initially installed v20g, it rebooted three times before I saw the AT&T logo) re-did all the odex / oat / Dalvik stuff ("Upgrading Android" screen) then the LG theme app undid all of my substratum overlays and restarted System UI. Which was nice, because normally when you forget them running before you update, you get stuck in a force close loop.

    What I deleted from /system/priv-apps/
    b4obs1W.png


    What I deleted from /system/vendor/app/
    pCdbqou.png


    SafetyNet a-OK :good:
    GTrlFqP.png


    You can probably get away with de-bloating more. I saw no need to; these were the most annoying, persistent, and/or resource intensive pieces of bloat aboard. Too lazy to check the screenshots, not sure if I trashed YouTube too initially, but I ended up deleting it from wherever it was and then also unlinking it from the Play Store because I use the Vanced Magisk module and I like to hit "Update All" without worrying about it disappearing.

    Good luck!
    3
    I would tell you to poke around thermal-engine-8996.conf and edit a few lines, but it isn't the same anymore and it looks like gibberish when I try to edit it. Previously it was plain-text and had a few very overzealous configuration options that damn near limited you to 500 ma charging almost all the time. Any temps above 40, the screen being on, you name it, limited charging speed.

    On the bright side, it looks like I didn't hhave to edit it on Oreo because I've been on v20h for a few days now and it works great!

    Debloating was a bit of a PITA - I use Facebook, but I don't wwant Facebook as a bloody system app! Seriously AT&T/LG?! Some of the apps kept bringing themselves back from the dead too!!! I finally used SD Maid Pro and completely nuked Lookout, Facebook, Facebook Installer, Facebook App Manager, all of the DirecTV ****, and every other AT&T app other than myAT&T which I just froze (disabled) and Device Help, which I froze in either Ti Backup or SD Maid because Android wouldn't allow me to disable it. Caller Name ID nuked too, the only ones I think I kept too was Hot Spots, and it's also frozen. Any remaining AT&T apps I went after and made sure they had absolutely 0 permissions left. I know one of them was actively redownloading **** like DIRECTV as I was uninstalling it. Assholes. None of said de-bloating broke Wi-Fi Calling or VoLTE. Thx again OP.

    Also, I don't remember where I saw it asked, but I can confirm that Oreo hasn't broken HDMI - it still works with my Microsoft Display Dock - SlimPort is DisplayPort over USB-C, and anything capable of handling that should still work.

    Only real nuisance is being unable to get Bromite WebView working, but it should work once I change the package name.

    And in case anyone is curious, none of my de bloating tripped Safety Net. If you somehow managed to, there's a Magisk module for editing device fingerprint that may help, here's mine from before I started cleaning up. I don't think any of it is personally identifying, but if it is, please tell me so I can edit it out
    Code:
    lge/elsa_att_us/elsa:8.0.0/OPR1.170623.032/181871124f959:user/release-keys
    3
    LOL -- so they check for stock recovery, and if it isn't there, then: "NO DATA FOR YOU!". I wonder if that was intentional.... I doubt it since they could have just as easily checked for the eng aboot and refused to allow data, or even boot.

    Glad you got it figured out ;)

    -- Brian
    2
    Seems the quality is getting worse on these cards recently.

    As I understand there's a lot of "pirating" going on with sd-cards. I was reading up on the matter a while
    back, and it seems it is to such an extent that you cannot be sure you got the real stuff almost no matter
    where you buy it from.

    Even if it's not outright fake wares, it could be the manufacturer itself who sells mislabeled or subpar cards
    in some cases.
    At least that is what I read, but it is not such a stretch to imagine it's true.

    One thing is definitely true; if you buy from Ebay... beware
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