yashsingh1/xdaforums huggingface dataset:
[G4 General] FoxyLove:
My H812 is now unlocked and I rooted it with Magisk.

I gonna try a Nougat rom :)
[G4 General] Yotam20:
815l

Hi if i have lg g4 g815L it will work ?
[G4 General] fil3s:
Just wanna show my screen -> About phone . again [MENTION=5545101]steadfasterX[/MENTION] I thank you for all the patience & effort u put into this project :good: and a big thanks from PayPal next week too.. ;)
[G4 General] FoxyLove:
I tried Nougat stock rom for ARB=0, and my device can't connect to any mobile network. So I can't call, send/receive SMS etc.
[G4 General] mertklic:
was your device H815 or his method changed it into H815?
[G4 General] fil3s:
H815T
[G4 General] fates13:
Also didn't work :( . Another issue that I've come across is that APN settings cannot be changed on VS986 for the Nougat roms that I've downloaded from your server. I think from what I could find on Google, that it has to do with the fact that the roms weren't built for CDMA phones (I had to delete the Assert line in updater-script to install the roms) so the configs to change APN's on CDMA phones haven't been set properly. This is a big problem because the MMS settings aren't configured properly for the Verizon APN so we are unable to receive texts on the device.
[G4 General] mwahahaa:
I have the same problem with my H812. I tried flashing the baseband alone and then the N modem but neither fixed it.
[G4 General] FoxyLove:
I think I know the problem : this rom is for LGLS991 model. I saw that on About Phone
[G4 General] steadfasterX:
1) yes h811 can be unlocked just in fastboot. The H811 is not listed on the LG website as that is the tmobile variant and so not managed by LG.

2) you can flash h811 firmware (same as your current ARB !) on the h810.. likely. .. but there is no 100% guarantee though.

3) IF that works for you there is no guarantee for signal well but it SHOULD work.. (the relevant parts like hardware init etc are ARB and signature verify related - both should be fine on that combination)

4) no guarantees for nothing. thats still a high risk to take and even when you in theory should be able to recover even the h810 firmware (by using correct QFIL files) its still nothing I can recommend

TL;DR

It can all goes well. I know about 2 or 3 ppl taken that route but again:

its a high risk, there is no guarantee for nothing and your device may not be recoverable (unlikely.. but possible)

.
[G4 General] kudlinux:
Hi steadfasterx. My model is H810. I did unlock with USU and install recovery but I cannot flash custom room of H810. It simply doesn't boot. Pleas e help.
[G4 General] steadfasterX:
Whats your firmware version? Wait for the upload of the backup files as mentioned in the aoscp thread.

.
[G4 General] G4_PITA:
Thanks for the quick reply steadfasterX,

I looked a little deeper into the H810 conversion and it's just too risky for me. I was not able to find a single thread which showed proof of success, oh well.

I take it UsU won't be working with ARB 3 anytime soon?

Thanks
[G4 General] steadfasterX:
Nope. Never.
[G4 General] kudlinux:
H81010o on Android 5.1. I was on Android 6 , but I had the same problem. I could only flash magisk in both cases. I do not understand what wrong I'm doing. Your help is appreciated.
[G4 General] thoiloidainhan:
Wow you are freaking amazing achieving all this by yourself. I regret giving my g4 away now :D
[G4 General] steadfasterX:
ok folks.

I guess I fried my g4 again. It seems to be a hardware issue (no

not

the ILAPO) and my warranty is over.

it happened while trying to fix current efidroid bugs (data permission issues, TWRP and more) and flashing several ROMs (impossible to count how many ROMs I flashed in the past..)

I'll try to get a replacement but well the chances are low.

This hardware quality is really a piece of..

.
[G4 General] kudlinux:
Mine could also be hardware issue? I'm following exactly your unlocking method, but only custom Rom is not booting at all in H810
[G4 General] fil3s:
:crying: don't give up ! You & kessaras & co made my crap day a lot brighter with the new aicp rom :crying:
[G4 General] cowsngrass:
I just acquired a different G4. It is supposed to be a US991. It's running 6.0 MM ver. 21a, ARB 2. Apparently the latest 6.0 is ver. 25a. I checked ARB of version 25a with SALT kdz extraction. It is also ARB 2.

However:

I removed the mainboard. It is stamped VS986.

All other information (SALT, phone settings) indicate US911.

GPT is H811 (SALT)

Obviously, a Frankenstein.

My main hope is to root the phone and debloat it to prolong battery charge. I would stay on Marshmallow, at least until the new ROMs are pretty much hassle-free.

Is unlocking this monster with UsU likely, or should I just get rid of it?

I've searched the thread and find info about identifying the Frankensteins, but nothing about working with them. Maybe not possible...:(

With TWRP and the backups, I'm nearly fearless. Without it, not so much!

Thanks for everything you're doing. SALT, FWUL, TWRP. Fantastic tools!
[G4 General] steadfasterX:
Well.. There is a good reason why you can't find much for frankensteins. The problem is it not 100% clear what they do to make it look like the model you bought. Tbh it's likely that at least for some models they change the PBL (read only primary bootloader flash) to make it work.

It's easy to find that out though but I never had my hands on such a model. You just need to share the basic SALT backup (just without misc, modemst1 / 2) and I can take a look.
[G4 General] Honza3s2:
Me too just patience :)
[G4 General] cowsngrass:
Here's the link:

https://drive.google.com/drive/folders/1tSSRz1sy7VXLlMuma5JduLurTNbUEDw1

Thank you. It's not the end of the world if phone can't be unlocked, but would be good to know one way or the other.
[G4 General] steadfasterX:
ok great. pls also share a screenshot of the SALT gui while that device is connected (ensure you hide your IMEI in the screenshot)

.
[G4 General] cowsngrass:
https://drive.google.com/drive/folders/1tSSRz1sy7VXLlMuma5JduLurTNbUEDw1

Note: there is no SIM in the phone.
[G4 General] windozeanti:
I have successfully usu unlocked my H815! FWUL rocks! Million thanks to SteadfasterX! :)
[G4 General] whitewolf1608:
Hello steadfasterX

Is this Rom stable?

I installed the latest TWRP Recovery in version 3.2.2-Preview.131_g4_N.

I do not understand what means> Your device need to be unlocked by UsU

I have unlocked the Bootloader in my LG G4 h815 by official.

> https://developer.lge.com/resource/m...Bootloader.dev

I kindly ask you for support on the forum or even though I unblocked

bootlader from the above link - can I still install this Rom?

The requirements of this Rom are:

Requirements

Your device need to be unlocked by UsU

Your bootloader stack should be on MM (see FAQ # 20 for how to upgrade your bootloader stack)

Latest TWRP - PREVIEW build: click

Clean modem partition (so no UsU baseband flashed) - see Installation topic for details

Please help my
[G4 General] sdembiske:
Please do not post the whole OP again and learn to shorten up your posts to be more concise - it is against forum rules to re-post the whole OP and frankly a waste of space and tends to piss-off thread authors and members in general.

I have already answered your question(s) here: https://xdaforums.com/showpost.php?p=77064959&postcount=4767
[G4 General] whitewolf1608:
Ok, I'm sorry I will not use the Quote option anymore.
[G4 General] Bcoates84:
Del
[G4 General] sdembiske:
Refer to the requirements and installation instructions here if you haven't already: https://xdaforums.com/g4/development/rom-lineageos-15-1-t3806615/

Also check out post # 1100 in this thread.

Issues tend to arise when: you have not installed the latest preview version of TWRP for Oreo; you have not wiped System and/or forgotten to Format Data; you have not flashed your SALT backup or extraction of your MM modem (using the recommended H81220X or higher versions). Suggest you try again and do a complete clean flash.
[G4 General] steadfasterX:
Read and follow FAQ #25a
[G4 General] steadfasterX:
I said you should read and follow FAQ #25a

25a)I have UsU'd but now in TWRP it does not show my model. Instead something like Chinese or strange characters.. How can I solve this?
[G4 General] Bcoates84:
Update

Hello there. I am not new to flashing roms and unlocking this was a new experance for me. Flaw is cool. I have been in linux before. Salt is well created good job Steadfester. This is my first time tring usu. I love the bypass to unlock. Haha. I have made apps for google play but it was a drag and drop system to make the app lol. I still had to put some code in to sign it and zipaline it. What code made salt was it java? Over here in canada ontario I havent seen to many jobs for coding. I hope u guys got a good job paying u over $100K. With my g4 I did end up starting over. Not sure why but for some odd reason I had to reboot back into recovery after a wipe/flash for twrp to recognise what I did. I did en up clicking on mount and un mount and this ended helping as well. I unmounted and remounted system as it wasn't recognized bc it was not mounted lol. I got lineage flashed with majestic running root. I have an old samsung s2 running lineage 13 = 7.0 i think? LOL. I held on to it bc my main phone was an stylo 2 at that time and couldent root that. Now I have a lg V20 i dont root my dd phone for warranty reasion. I got this g4 off my g.f when she got the P20. Now the G4 kicks butt butt. :good: . To U. You are a master devloper and I am honnered that I was able to be the tiny grasshopper !!! :laugh:
[G4 General] steadfasterX:
I'm glad that you're happy ;)

urgh.. really.. Java? Are you serious? Java is nothing I will ever touch (if I dont need to) ;)

Nope SALT is just bash and GTK+ and ofc a dash of magic..

Well its only >me< who is doing SALT, FWUL and achieved UsU (besides brave testers ofc) so sorry but there is only 1 single guy ;)

... and no my job isn't honored that much ;) well but it could be worse so I dont wanna complain

lineage 13 = MM / Android 6

Have fun!

-
[G4 General] glenrocks:
Issue remains on H812 + US ATT + Modem handshake..

WC is over and after disappearing, I am back... excuse me steadfasterX. I am online so please ping at IRC when u r available - I still have not been able to get handshake with carrier.. so might need ur intervention.

sdembiske, as I read, it seems that this build might help H812 phone I have, right?? Does it mean that the universal modem.bin in it works for H812 now?

and how r u? hope all well.
[G4 General] sdembiske:
I really don't know in your particular situation - all I can suggest is giving it a try to see if it does the job - your case is very different so I'll have to defer on this one. Hope you get there.
[G4 General] Bcoates84:
iso delete this scroll death. Ugh! :p
[G4 General] glenrocks:
Okay.. I will wait for steadfasterX first. Cheers!
[G4 General] laughmore:
flashing N modem caused LineageOS 15.1 not to boot. LineageOS thread advised MM modem which worked. Still no 5ghz wifi or mobile network with xfinity sim.

vs986 (2ba)
[G4 General] glenrocks:
I remember that LOS on H812 itself had issue with enabling 5Ghz wifi option.. Voice over wifi (seems thats what it ur problem), then it could be modem.bin issue (hope u have backups and/or use revisit steadfasterX notes on modem requirements). else wait for him to respond.
[G4 General] drotaru:
Does this unlock the phone from SIM lock also ?

Got a G4 locked on Canada H812
[G4 General] steadfasterX:
There is a reason why this thread exists: https://xdaforums.com/verizon-g4/orig-development/rom-lineageos-15-1-t3806635

There you will find that N modem will not work for your model (topic "Installation"). Check that thread first.

ok

no
[G4 General] f-rdni:
i have f500 device, can i use h815's custom rom ?

or i have to convert it to h815 first and then unlock it with uSu ?
[G4 General] steadfasterX:
Read the OP -> Requirements #3

Means: flash F500 MM latest. You can then later flash to N if you like to.

Do not convert or anything just follow the guide.

-
[G4 General] f-rdni:
in SALT written gpt compatibility is H815, but my G4 mainboard is F500

what is that mean ?

sorry if my English is bad
[G4 General] JMLS15:
Problem with LG G4 VS986 After Unlock.

Hello, i have a problem with my vs986 after unlocking it by USU.

After doing all the steps of the post.

1- Install twrp

2- Flash VS986_UsU_baseband_flash-in-twrp.

After that I turned on my phone again and realized that the call service was not working.

I tried to do all the instructions that you say in the post :

5e) I flashed UsU and now I have no cell service anymore:

If there is no UsU kernel for your ROM install a supported ROM and flash the UsU kernel afterwards.

I tried to do what I just mentioned but in the recovery menu of twrp says, after flashing a custom rom for the VS986 : (FAILED) E3004. This package is for device : g4,p1,h811 (The terms change depending from what version of the rom im flashing ( VS986, H811 ( GPT in SALT) this device is 3▧▧(▧▧. Updater process ended with ERROR: 7

The android version that I am using is 6.0 MM (VS98624C) (ARB 02)
[G4 General] sdembiske:
Did you remove the Assert line (first/top line in the updater script) in the rom? If not, do it - it has to be done when flashing a rom not specifically for your model but with the same GPT compatibility.

Try flashing your stock MM modem.bin file from your SALT backup or the modem.image file from the extraction of the MM rom you've been using to get your cell service working.
[G4 General] steadfasterX:
Upgrade to the latest TWRP version!!

Read and follow FAQ #25

Read and follow FAQ #13

The FAQ can help a lot..

.
[G4 General] JMLS15:
I already did what FAQ #25 says, but keeps showing the chinese letters.

It does not let me install any ROM for the VS986 and H811.

The ones that I already tried was :

aoscp_vs986_usu-4.2-20180421-unofficial

lineage-15.1-20180719-UNOFFICIAL-h811

And when I connect the phone to the computer it does not show me my model, it shows:

LG-UsU

and in adb it shows :

LGUSUff6299a5

Please, help me D:

---------- Post added at 09:32 PM ---------- Previous post was at 09:30 PM ----------

First I want to solve the problem of the rare characters.

I dont now how to do that "Did you remove the Assert line (first/top line in the updater script) in the rom? If not, do it - it has to be done when flashing a rom not specifically for your model but with the same GPT compatibility."

I will try to do that after resolve my first problem. "Try flashing your stock MM modem.bin file from your SALT backup or the modem.image file from the extraction of the MM rom you've been using to get your cell service working."
[G4 General] JMLS15:
I have the latest TWRP version for the VS986.
[G4 General] sdembiske:
With respect to the first issue, go through steadfasterX's suggested steps again from the referenced FAQ in his post above, making sure you are on the latest preview version (N or O) for the particular rom version (N or O) you are trying to install.

Refer to post # 947 for a How-to on removing the Assert line in the zipped rom folder you are trying to install.

When installing the particular custom rom you want, in the appropriate TWRP version, make sure you wipe

System

, Cache and Dalvik cache

and

Format

Data

, install gapps, flash/install your MM modem file and then your preferred root method and Xposed if desired.

Note

: The Thanks button at the bottom of the post is there for a reason. Please learn to use it when members are trying to help solve your issues.
[G4 General] JMLS15:
Yes, I did everything than steadfasterX suggested.

And I still can not solve the problem of the "25a)I have UsU'd but now in TWRP it does not show my model. Instead something like Chinese or strange characters.. How can I solve this?"

And that problem does not let me install any rom because it says it's not the right one for my device.

I am also trying to solve the problem of phone network but I can not solve it if I do not try to install another ROM.

Im using the stock rom (MM 6.0) (24c)

---------- Post added at 11:52 PM ---------- Previous post was at 11:18 PM ----------

When i try to flash the rom after Assert line remove it say "Invalid Zip file format"
[G4 General] sdembiske:
FROM the FAQ #25a): TWRP will detect the model now correctly. If not

share the TWRP log as described in the TWRP(!) thread FAQ 4a

.

... for steadfasterX to have a look at.

Try the Alternate Method, in the post.
[G4 General] JMLS15:
The alternative metod worked, but now i have other problem.

After installing a ROM and install that rom's kernel the phone did turn on but now is in bootloop.

I already tried 2 roms but all are stuck at bootloop>

lineage-15.1-20180719-UNOFFICIAL-h811 and h811_los_boot_build-4-oreo

aoscp_vs986_usu-4.2-20180421-unofficial and his kernel

Need help D>
[G4 General] steadfasterX:
Why not flashing the ROM which is made for vs986 first? LOS 15.1 for the vs986. Even linked in this OP.

When you have issues in TWRP I need the log (see my signature how to).

Also learn to use the thanks button as sdembiske mentioned already.

Also its bad practice to say "i use the latest version". Tell the exact version you are using. That goes for everything like ROM, TWRP and whatever.

Every UsU device gets detected as LGUSU in adb(!) but when opening the file explorer it should show the correct model. Again share the TWRP log. Share it or no one can help you.
[G4 General] JMLS15:
I flashed the rom for the vs986 first, i just was testing if the rom for the H811 will not bootloop.

the TWRP version is the twrp-3.2.2-PREVIEW-131_g4_N.img

Here is the recovery.log : https://bpaste.net/show/7541b33eb259

The rom is the lineage-15.1-20180719-UNOFFICIAL-h811

The rom version is Oreo

is not Encrypted.
[G4 General] sdembiske:
The TWRP version you are using is for Nougat (N), not Oreo (O). Use this link to download latest preview O version: http://leech.binbash.it:8008/TWRP/O/

Before rebooting, after flashing the rom, gapps, etc. try flashing your MM modem file ...
[G4 General] JMLS15:
I flashed the ROM again but now with the recovery OREO version, and the same, bootloop.
[G4 General] sdembiske:
Did you confirm that the the H811 Assert line was removed? - you have to ensure that it has been saved on the removal of it in Notepad ++, otherwise you will experience the same error. Using the H811 rom, you should also install the vs986 Oreo kernel from here: http://leech.binbash.it:8008/kernel/vs986-UsU/lineage/oreo/

Why not do as steadfasterX suggested and use the latest VS986 Lineage UsU O version rom from here?: http://leech.binbash.it:8008/lineage/oreo/vs986-UsU/

In TWRP, make sure you wipe

System

, Cache, Dalvik Cache and

Format Data

, install the rom, then immediately install gapps, (if using the H811 rom, install the vs986 Lineage Oreo kernel - it's not required for the vs986 Lineage O rom as it is built-in), flash your MM modem file, install your preferred root method and Xposed, if desired. DO NOT MISS ANY OF THESE STEPS before trying to reboot your device and don't forget the Thanks button ..., eh?
[G4 General] Shawn R:
Question. I have the h811... What's the fastboot command to SIM unlock my device?
[G4 General] lowtiertrash:
I have the US991 G4

I successfully flashed UsU. However, When I attempt to fastboot my phone soft bricks.

I can get into download mode fine, and my phone boots as usual. I checked my software and there are no visual changes. Have I overlooked something?

The only variable I have noticed is that people report their secure boot errors to be 1006, but mine reports as 1003. I don't know if that has any baring on my issue, but I'm stumped.

Just a point in the right direction really would be much appreciated, thank you.

update-

It seems that I can enter fast boot when not connected to my pc.

I've tried several usb cords. They don't seem to be the culprit.

I'm wondering if this doesn't pertain to my issue?

If anyone can help I'd reallllly appreciate it..
[G4 General] JMLS15:
I did all the steps one by one and again BOOTLOOP.

Here is the recovery log file :https://bpaste.net/show/8cf46f8929e7

Here is the kernel log file : https://bpaste.net/show/2dcb7c094928

Im using the G4_29a_N_modem_UsU flashing with TWRP
[G4 General] sdembiske:
Recovery log link isn't working - error 404.

Refer to [ROM][UNOFFICIAL][O][UsU] LineageOS 15.1 [VS986] - Read the OP!

NOW, note under Installation in that thread, the very first line:

If you have ever flashed the UsU baseband package: Clean flash the modem partition from your backup in TWRP. If you have no backup: TWRP flashable MM modems (N will not work)

i.e., as I've been stating ad nauseum, MM modem file, yet you tell me the N modem?

Refer to FAQ # 5a
[G4 General] JMLS15:
THANK YOU, the modem was the problem, installed the 24 c modem and it boots.

THANK YOU MUCH.

---------- Post added at 02:16 AM ---------- Previous post was at 01:59 AM ----------

Now the phone service is not working, i want to call and it ends the call.
[G4 General] cablematicman:
I was just following the instructions to USU my h812 (this is the second one, I did this before months ago and it worked perfectly) this time, after flashing the h812 baseband my device still shows up at "LG USU" on my computer and I can't flash Lineage15.1 for h812 USU because it gives error code 7 like the phone model number is incorrect. I'm forwarding my TWRP log because the instructions say to... any help will be appreciated. I'm going to keep trying...

this is the part of the installation that seems to have failed...

Flash the baseband package now: <model>_UsU_baseband_flash-in-twrp.zip

While still in TWRP choose REBOOT menu and reboot to RECOVERY (yes again!)

Notice: TWRP will show your REAL device model when connected to the PC now.

If not: SHARE THE recovery LOG (how-to for grabbing the recovery log is written in FAQ #4A)!

View attachment recovery.log

edit: I removed the assert line and flashed "lineage-15.1-20180720-UNOFFICIAL-h812_usu.zip" anyway, seems fine now.

nah, it still isn't right. it still says LG USU my other USU'd G4 says LG H812
[G4 General] sdembiske:
Are you with Verizon? The reason I ask is that [MENTION=6260190]fates13[/MENTION] had a similar issue with his vs986. Refer to his post

# 446 in particular to see the steps he followed to solve. Before proceeding however, confirm with [MENTION=5545101]steadfasterX[/MENTION], he may ask you to come over to IRC (Monday to Friday). You will get there, so don't freak out ...

The only thing to try currently would be to perhaps reset your network settings and check what is showing in your apn settings.
[G4 General] sdembiske:
Refer to post # 1100

In particular this part:

Before starting the actual rom installation in TWRP, wipe System, Cache & Dalvik, format Data, then install the rom, gapps, then, install/flash your stock MM modem SALT backup/extraction* file (I had no sound, when I installed the N modem), SuperSU (or Majisk if preferred) and Xposed (if wanted).

Make sure you wipe System

and

Format Data in addition to wiping cache and Dalvik cache. Don't install the baseband package but do flash your MM modem SALT backup/extraction file.
[G4 General] cablematicman:
Thanks for replying. You were correct that I forgot to wipe system, it was late at night, I shouldn't do these things when I'm tired. LoL

I started over... Wiped system and Format Data and Cache and Dalvik, and Factory Reset. installed the ROM, GAPPS and the LineageOS--addonsu-15.1-arm64-signed.zip but it's still identifying as LG UsU when connected to the computer while in recovery. when the phone is up and running it identifies as LG H812.

I did not flash my old MM modem because I didn't with my other G4 and I've had no issues, could that be what's causing this?

Does this even matter? My other one shows LG H812 even when it recovery.

Thanks again for responding. Cheers
[G4 General] sdembiske:
Are you using the latest TWRP preview download for Oreo? Use this link to download latest preview O version: http://leech.binbash.it:8008/TWRP/O/ if you're not and see if any difference.

If not, refer to FAQ 25a) in the OP.