yashsingh1/xdaforums huggingface dataset:
[G4 General] grantdb:
Just a side note after setting everything up with the stock nougat v29 using my original mm modem, baseband and custom kernel with majisk I have found that the nougat modem seems stable.

So flashing the G4_29a_N_modem_UsU.zip and the H812_UsU_baseband_flash-in-twrp.zip seems to actually have better stability and also seems to connect at a better reliability than the mm modem.

This is only my perceived opinion and has no basis in tested facts.

Cheers!
[G4 General] adam_s_459_:
I Have no intention of doing this, but i was wondering, what would be the concequences of flashing a rom meant for the h815 on a device with an h811 gpt compatibility? Would the Rom juet not boot or whoukd there be a hard brick? Just curious :confused:
[G4 General] tmvkrpxl0:
Hi, i unlocked my device with UsU, and i flashed custom rom. but youtube app and youtube replacement apps are lagging.. i know this is not caused by UsU or kernel or something else... it just rom problem.. but there is anyway to fix this? Using an optimizer app is not very helpful.. so i just need to use stock rom or another rom if i wan't to watch youtube without lag?
[G4 General] steadfasterX:
It may just not boot. The main reason for having the GPT compat check is the different partitions needed on boot. If a required one is missing it will hang or bootloop.

Depending on the ROM it may just boot regardless and the h815 ROMs are more strict then the h811 ones.

You can just try it without a big risk as long as you just flash the boot and system partition.
[G4 General] sdembiske:
Refer to post # 1264 ... or, flash the stock Nougat UsU rom in the Downloads section of the UsU unlock thread.
[G4 General] taujonlms:
My phone kinda got bricked

I'm done with the UsU. Everything went fine but I don't know how to flash the TWRP I don't have device debugging on and the phone turns on stays a few minutes and bootloops-ish. I really need help!
[G4 General] steadfasterX:
It sounds like you haven't followed the guide ?

What happens at step:

If the UsU flashing was successful (SALT will validate the flashing) continue

of the UsU flashing guide?

.
[G4 General] taujonlms:
DONE

It's fine now. I had an issue with fastboot drivers now it's fine flashed the TWRP everything works fine. But thanks.
[G4 General] jmorfeos:
H810 MM 20n ARB 2

Hi [MENTION=5545101]steadfasterX[/MENTION], thanks for your big work!! Nice to see some development for LG G4 H810.

I have this phone and use it in Argentina, but I have updated Android to MM but stills working erratic. 4G Network fall down erratically and has bad connection strength. And sometimes reboots itself. I have it with MM updated by OTA to 20n and I think ARB 2, I attach phone info (I can, newby) i66.tinypic.com/2ut6x5u dot jpg

I think after reading a lot on internet information that problem can be that I have an AT&T software and I'm not on his network.

Did you think that making you UsU and after them install your Nougat ROM AOSCP, I can resolve this problems?

Regards
[G4 General] Vishnuisgod:
hey steadfasterX

Im a touch concerned.... Everything I saw in SALT said h815. BUT when I try to enter recovery it goes into Android recovery... I think I messed up the TWRP install. But when Im in terminal and search for adb devices it says ls991. concern franken-phone..... it was supposed to be new..... at the end of the day I dont care too much, so long as I have a radio...... I just know I need to flash the right base band files....Im asking to make sure
[G4 General] sdembiske:
Just an additional note - thought I'd re-try installing the N modem followed by the H812 baseband on the latest AICP Sept. 07 H811 Oreo rom - result was the same as I found before on the AOSCP N and Lineage O roms - no sound at all.

Re-flashed the MM modem and sound is back, so it appears that this works only for the stock N rom.
[G4 General] ThePiGuy:
I'm not an expert as my G4 was officially unlocked but I believe that all devices show as an LS991 after being UsU'd as the leaked file used to create UsU came from an LS991.
[G4 General] kushki:
I wanted to thank sfx and the team for developing this amazing tool. I had a nice journey although short lived, but now my H812 is permanently sim locked after mistakenly I tried to flash stock kdz (forgot about all the warnings in the OP). Anyways, since I have a dud sitting on my table now for which there is no hope, I wanted to say good bye and thank you for all your hard work. I will keep trying to flash random kernel/modem/basebands here and there in the hopes that my phone can start working again someday.
[G4 General] Vishnuisgod:
cheers for that. Now that youve said that, I do seem to recall seeing something about that somewhere. Ive been watching this stuff since Jan.

Any ideas what may have happened when I tried to install twrp? All I get is Android Recovery....and the phone restarts alot now.....:confused:
[G4 General] najoor:
Depending on what your existing firmware is, after you install twrp and reboot, the firmware seems to try and reflash the original Android recovery into the system.

After you install twrp and before you reboot the system, root with magisk. This will solve the problem.
[G4 General] Korin67:
I could do it

Thank you for the good article. I bought inexpensive H815 from Alixepress, UsU'd and now enjoying Lineage 15.1. The description (and warning) is precise enough, that made it possible in my first try. What is curious is:

I bought H815 but I found when using SALT it is actually H815P. By Referring Aliexpress page, H815P does not support Band 1 in LTE that is crucial in my country. But the result for my H815P, equipped with UsU seems to support Band 1. Does the baseband package in the process convert H815P to H815? If so, what is the difference in baseband packages for different models (for H815 and H810 etc.).
[G4 General] sdembiske:
The only Oreo custom rom for the LG G4 updated so far with the August 05 Google Security patch is the Sept. 17 upload of [G4][13.1][TITAN] ~ AICP ~ [H815][H811][UNOFFICIAL]

If you haven't tried this rom as yet, I really recommend you give it a shot. It combines the best of Lineage O and others with some extra customization available. Don't think you'll be disappointed ... No Assert lines have to be removed (at least in the H811).
[G4 General] Vishnuisgod:
cheers najoor!

I got twrp flashed and such, but when Im trying to flash aoscp In get an error 7 in twrp. I googled it but... I dint understand why I get it. Google says its due to a different variant.... Im quite sure its a h815... and i grabbed the zip from steadfasterX's server.... thoughts?
[G4 General] kudlinux:
please help mine is H810. After flashing this rom from TWRP, it just boots back to recovery. Please let me know what wrong i'm doing.
[G4 General] najoor:
If you are 100% sure this is the right firmware, then check item number 13 in the second post of this thread (FAQ)
[G4 General] kong790:
Won't firmware update

I tried updating firmware through download mode on my h812 but it keeps saying unable to connect on salt. I'm using fwul with VMware and I have my USB ports enabled on VMware. I followed all the instructions. Updated salt, etc. Any tips?
[G4 General] nochamleben86:
Modification request for the Genysis Rom

Hi

I've done successfully the Unofficial Unlock UsU for my G4 H815. :good:

I would like to Install the Genysis Rom 4.9 MM

What should I delete or change in the ZiP file please ?

Any help is appreciated.

and thank you very much for the Great work. :cowboy:

[IMG="Zip file contents"]https://imgup.cz/images/2018/09/17/scshot.jpg[/IMG]
[G4 General] sdembiske:
"Do not flash any MM or N bootloader stack containing the file named: aboot. This will immediately lock your device and so definitively HARD BRICK!"

Note

: The rom contains a modem.image file - that should clue you in ...

Any time you go off from the custom roms for your device in the Downloads section in this thread you are increasing your risk, IMO.
[G4 General] kushki:
Not done yet..

Hey guys, turns out I still need my LG G4. The phone I ordered from Koodo is back ordered and I will not receive it for 3-4 weeks. Clearly, I cannot stay without a working phone for so long, I have decided to try to resurrect my G4 one last time and I would greatly appreciate your help. As mentioned earlier, I, by mistake, flashed a KDZ after having problems with custom roms in an effort to go back to stock. Of course the flashing failed woth the kdz, I still could flash the ALL ARB Nougat stock on it. After flashing I discovered that I cannot connect my SIM to any provider, it shows signal bars after a couple of minutes of booting but when I tried to make a call, it says emergency calls only. When I try to manually connect to my network, it says the connection is not allowed. For now, I just want to go back to the stock rom of MM. I was wondering if I could use the method in FAQ 20 in the second post.

If this can work, I would download the kdz for H812 on MM with ARB = 0 (by checking in SALT of course). I do not have the salt backup anymore as the USB drive wouldn't read or register. Also if I can follow this, does it matter which carrier specific KDZ do I use, as long as it is for H812, is MM and ha ARB = 0? This, because I do not remember if I had Telus stock or Rogers stock before USU'ing.

I know it is a lot to ask, but I would really appreciate the help here.

Thanks for reading my essay.
[G4 General] kong790:
NO SOUND

i rooted and everything fine. installed lineage OS and everything works perfectly except i have no sound. ive gone trhough all the sound settings and everythings turned on
[G4 General] smzubair:
Hi mine was lg h810 10o on LP. I overlook the caution that i've to be on MM before usu. Thats why i got problems and now i'm using same LP on my device. As of today i dont know the solution. But pls ask op of the thread"steadfasterx". He will guide you. As im just a user not a developer. But pls provide him as much details as possible, complete log files, from salt and from TWRP, exact model no and which rom u r trying to install.
[G4 General] sdembiske:
The only Oreo custom rom for the LG G4 updated so far with the

Sept. 05 '18 Google Security patch

is the Sept. 20 upload of [G4][13.1][TITAN] ~ AICP ~ [H815][H811][UNOFFICIAL]

If you haven't tried this rom as yet, I really recommend you give it a shot. It combines the best of Lineage O and others with some extra customization available. Don't think you'll be disappointed ... No Assert lines have to be removed (at least in the H811).

Note

:

Battery drain has been greatly improved

in the last couple of uploads,

making it currently one of the best (if not the best), custom roms for minimizing battery drain on our unlocked LG G4 devices

. The rom will be going Official very soon it appears (refer to post # 96 in the AICP thread). I gather from the post that Ril has been fixed, Encryption is working & SELinux is enforced for when the Official version is uploaded.

Addendum

: Issues have been reported today with the unofficial September 21st upload - use the September 20th upload until a new version is uploaded next week.
[G4 General] steadfasterX:
Which all will be included in LOS as well. Will just take a bit of time but then I will reschedule a global model build again
[G4 General] mwahahaa:
Whoops. I guess the wrong file was uploaded. I wonder if we are out of luck for this weekend.
[G4 General] renguer0:
Wow! This is really huge! Thanks and congratulations!!

Maybe it can help to another devices like g6 variants or this job needs to be started from the beginning in that case?

Enjoy it!!

Enviado desde mi LG-H870DS mediante Tapatalk
[G4 General] FoxyLove:
I hope that this problem will be fixed. I read that this rom is for all G4 models. I made a backup with TWRP BEFORE flashing, I tried to backup and my device stays with the LG logo and the Secure boot failed message. I don't know what to do now...
[G4 General] augusto1024:
Read item #4 in FAQ. It's just a cosmetic thing...
[G4 General] mwahahaa:
NfC is also not working with the stock nougat Rom on H812.
[G4 General] slim902:
Anyone have issues getting fastboot to install twrp? when i enter the fastboot flash command it just says waiting for devices and doesnt do anything. fastboot devices shows a device there so it is seeing my device.

Edit: Fixed by calling sudo fastboot flash recovery. in case anyone else is having the issue
[G4 General] fates13:
I just realized that phone calls aren't working at all either. Didn't notice initially because LTE was connected and working. I'm not sure at this point if this is a modem issue or a rom APN issue.
[G4 General] dark.blue:
wow.... this tools is awesome... [havent try it yet]

anyway, is H818[p] still being held?

the problem still hasn't been solved?
[G4 General] safwan ck:
OP its great of you to develop this

Please fix the issue of h818p and make it available
[G4 General] Guy Noir:
Invite needed

Seems likke steadfasterX has made the IRC channel carbonfusion-users invite only. So, steadfasterX, can I get an invite?

--

guynoirnpr
[G4 General] Mahziyar:
Hi i have h818 model and i installed h815 v29 rom with android nougat, should i wait for h818 fix or i should do it via h815 way? tnq for your topic :D
[G4 General] raptorddd:
CONGRATULATIONS.. my friend i knew youll pull it off.

i had faith in you. i still remember you saying you were going to stop unlock..you alsmost throw the towel LOL.. after so many days it paid off.

great job now collect the bounty .:D

great day for all those locked G4's

i have 2 words to say to you thank you

and to LG f*** you.
[G4 General] takamper:
I could follow all the steps, but I'm stuck at the part where it says "flash TWRP" how do I flash TWRP?

I read the entire post several times and all the comments before commenting.

is it with LGUP on windows?

thanks a LOT for this tool BTW you're a god

edit: neeeevermind. done it. will leave the method I used below if there's idiots like me stuck in here. I took it from a guide from technobuzz but I can't post links so I copied it and modified it for this method
[G4 General] Guy Noir:
Do NOT try to do it with the h815 way. I believe it will not work now anyway because UsU will kinow it is an h818 and not even try to unlock it due to the touchscreen error. What is your ARB? I also believe that you may have problems because you installed the v29 ROM. I believe that will put your device out of any hope because v29 ROMs are known to blow some fuses if the boot loader from v29 is installed. You may be out of luck in using UsU. steadfasterX will know best.

--

guynoirnpr
[G4 General] Mahziyar:
Ok i dont know what is ARB but i guess i should return to marshmallow for use this method tnx ;)
[G4 General] Guy Noir:
ARB is Anti_Rollback and is a state of fuse blowing of your device. LG and the carriers implemented this method to disallow any return to a lower version ROM. You really need to read and understand the first post of this thread before doing anything.

You should not try to return to MM yet because I believe it will not work with your device. Also you want to stay with Nougat, wait and consult with steadfasterX before doing anything.

--

guynoirnpr
[G4 General] th3y:
Hi guys, i have a H815P

SALT says that my phone is unlocked but he said:

-BASIC STEPS ARE:

- FLASH TWRP

-flash usu baseband

-flash custom rom

So, now i need to power off the phone and power on, copy the usu file baseband into my phone, go back into fastboot and flash twrp, flash usuband, right?

View attachment usulog.txt
[G4 General] Mahziyar:
Ok i get it tnx again
[G4 General] Guy Noir:
Mostly correct. The first thing you do is flash TWRP in fastboot. Then restart by pulling the battery and then using the right key/power sequences to reboot into TWRP. Then flash usu baseband using TWRP flashing. Then you are set.

--

guynoirnpr
[G4 General] trqzhangkai:
i unlocked my H815 TWN and flashed the AOSCP 5.2 successfully but the wifi didnt work and the mac-address is 00:00:00:00:00:00. i tried to solve it follow this post https://xdaforums.com/lg-g5/how-to/guide-fix-wifi-mac-address-changing-t3533841 but failed. can i recover the misc.bin to solve the problem?
[G4 General] hamed_forum:
my g4 h818p bootlooper on log lg when go on download mode dot go firmware update

can use here method?instal twr?or any work can go firmware update update new rom ?
[G4 General] steadfasterX:
jfi new LOS builds are near:

https://xdaforums.com/showpost.php?p=77708214&postcount=882

.
[G4 General] augusto1024:
Hi man! What Android Version did you have before unlocking? I'm thinking of unlocking my h815-L but Im kindda scared because i bricked my ls991 trying to unlock it :(
[G4 General] hamed_forum:
Can unlock h818p?
[G4 General] Jacte:
Hey guys. I'm getting "Your LAF firmware (1000004 / LG-815TR) does not support direct flashing. Flashing functionality disabled." error on SALT. I haven't unlocked my device yet, so I got scared a bit and did nothing with it. Can I continue with unlocking and installing a custom rom? Or is this a problem that should be solved first?
[G4 General] Jacte:
Still waiting for an answer...
[G4 General] ThePiGuy:
Logs? It's considered good practice to upload them whether you believe they are necessary or not - then [MENTION=5545101]steadfasterX[/MENTION] can see exactly what the problem is
[G4 General] Jacte:
Sorry, you're right. Here it is:

https://bpaste.net/show/1ba6433651f1
[G4 General] adam_s_459_:
You're good to go, you're phone just doesn't support they direct flashing functionality. "by direct flashing (only when available - SALT will show this option only when possible for your device)" so just flash one of the two other ways. :good:
[G4 General] Jacte:
Thanks so much for the answer. I'm gonna try it soon.
[G4 General] Jacte:
UsU'd and installed RR on my H815TR succesfully. Thanks for your help and especially thanks [MENTION=5545101]steadfasterX[/MENTION] for all his works.
[G4 General] tim455:
Hi guys,

I've done a little reading now, but am unsure about my way forward because of ILAPO issue.

Currently on ROOTed LP/LL with ILAPO fix... BUT the readme says i need to be on at least MM...

My phone is h815 TWN (so no official unlock) and I'm not sure if I can even move to MM without constantly hitting the ILAPO issue. Or does the phone just need to be on MM as a base without the need to actually boot the phone?

Do I just update to MM anyway and try to use UsU? will there be any issue booting? will there be an issue trying to boot TWRP?

thanks
[G4 General] steadfasterX:
you said: "with ILAPO fix"

what does that mean? There are several ways to minimize the ilapo but I guess you meant you flashed a TOT file for this?

Was your phone already caught up by the ILAPO? If so its maybe better to stay where you are as just flashing a ROM and/or booting it afterwards produces a high load = high temp = ilapo

If you still want to:

You could try to use LGup to flash MM (due to the TOT file you flashed it may reject that though) but do not boot it afterwards. It may auto-reboot after flashing so prepare to take out the battery when that happens and boot to the DL mode instead.

For the h815 you could do it even without flashing to MM first (while still

recommended

to try it with LGup first).

important thing is that you do a SALT backup before and follow all steps.

once completed the unlock you can flash the MM bootloader stack by following FAQ 20b) without the need of using LGup etc.

IF you flashed the special ilapo TOT file to fix your ilapo then this is gone after UsU'ing! That means UsU removes that fix from your phone.

Never ever flash that one again (or other KDZs / TOTs) after UsU'ing.

Not all is lost then as you can do your own ILAPO fix!

To use the ILAPO fix the following is required for

every

ROM (yes even for stock) and for

every new ROM release

which you want to install after being UsU'd:

https://xdaforums.com/g4/general/guide-create-custom-x-cores-boot-image-t3718389

plus: instead of flashing the regular TWRP just modify the latest TWRP like a boot image (so as described in the above link)

.
[G4 General] tim455:
sorry, yes. I flashed one of the original TOT files that were signed 'officially'. (I think it originated from a leaked LGE service guide)

I'd still like to try either way. Nothing really to lose. I'll follow your instructions and give it a go eventually.

Thanks steadfasterX.
[G4 General] steadfasterX:
yep thats what I assumed (e.g. http://leech.binbash.it:8008/unbricking/max4cores/)

Those contain an aboot file which will get replaced by UsU.

Well consider to use the thanks button on all useful posts ;)

good luck
[G4 General] lRaziel1:
H810 22c = v3

Im on MM 6.0. H810 22c = v3

Factory version:

LGH810AT-00-V22c-310-410-NOV-23-2016-ARB03

SW original version:

LGH810AT-00-V22c-ATT-US-NOV-23-2016-ARB03

Does that mean im ****ed, right?
[G4 General] jjcdennis:
I'm prepping to do this process and have a question. In the instructions you mention the following:

"If you see a "H811" there (gpt) you have to flash H811 ROMs later (if no specific ROM is available for your model)."

I just want to be sure because I found both a Lineage N and O rom available on the link you provided - http://leech.binbash.it:8008/. Can I use the H812 roms or instead use the available H811 roms?

My model is an H812 running firmware LGH812AT-00-V20z-302-220-Mar-27-2017+0, usu=no, arb 0.

If not may install this rom - https://xdaforums.com/g4/development/g4-aicp-t3812797
[G4 General] adam_s_459_:
You can flash any rom for either the H812 or H811 just don't forget to remove the assert line in the update script. (You shouldn't have to do this on H812 roms but I found it good to do it anyways because sometimes I still get an error.:()
[G4 General] jjcdennis:
This is a first for me on the LG G4, so I am not sure what the "assert line" is. I'm working on the original installation steps as shown on the first page.
[G4 General] adam_s_459_:
What I do is I download the rom, (I use the mixplorer app from xda labs for this next part) tap on the rom file, go to META-INF>com>Google>Android> updater_script open the file in text editor and delete everything from the top until you reach the words ui print. Simply hit save (it will take a while) and you're good to go
[G4 General] sdembiske:
... or ... reference post # 947 in this thread.
[G4 General] jjcdennis:
Thanks, I see what you mean and will grab MiXpleorer. Do you just run this off the phone?

I'm at the stage where I have to go through the setup on the phone and decide which rom to use. once it is unlocked. I will give it a try.
[G4 General] adam_s_459_:
I just do it on the phone
[G4 General] jjcdennis:
I have a question before I start flashing. In the Important note section I found the following:

1) Flash G4_29a_N_modem_UsU.zip in TWRP

2) Flash your baseband package (<model>_UsU_baseband_flash-in-twrp.zip) in TWRP again!! If you don't you will get bootloops, android hanging on boot or modem SoC crashes (blue demigod screen)

I just want to make sure that I am supposed to do this after flashing and booting TWRP? (as shown in the "Unleash Your Device section"). I ask because I'm curious why the instructions aren't included under the "Unleash" section.

My G4 currently runs H81220z.
[G4 General] sdembiske:
On the H812, the only time you need to install the G4_29a_N UsU modem zip plus the baseband package is if you are planning to upgrade to the LG stock N rom in the Downloads section in this thread.

For any other custom rom, N or O, you do not need to flash the N modem and baseband - if you do you will likely find you have no sound and possibly network connection issues. The only thing you need to do is flash your MM modem.bin file from your SALT backup or the MM modem.image from a SALT extraction of an appropriate carrier version of your MM kdz.

You do not need to flash the baseband in these cases

...
[G4 General] kjdoug:
no mobile data

Just flashed this on my h812 and everything works great except I can't make calls and it won't allow me to turn on mobile data. Which modem or whatever do i need to flash? Thanks in advance!!