yashsingh1/xdaforums huggingface dataset:
[G4 General] steadfasterX:
make a full backup in TWRP and ensure you check

EFS

there!!!

Copy that backup to your PC

BEFORE going any further - as its crucial important!

go into fastboot mode

fastboot erase modemst1
fastboot erase modemst2
fastboot reboot

if it still fails the easiest is to come over to IRC but I'm there tomorrow first.

(btw there is a tiny thanks button for useful posts here on XDA...)

.
[G4 General] roberto888:
Made my my phone bootloop, had to Wipe Data, Dalvik, and cache. Situation is still the same. No cellular. I am heading off to work now, I can come to IRC on Friday. Thanks for the help man!
[G4 General] ariehle:
first, this process has been amazingly simple and the phone is incredibly fast even w/out additional clocking but...

I have the same issue, everything works EXCEPT cell calls and texts, data works fine.

V96

usu'd

lineage 15 rom

gapps stock

any other info I can provide?

appreciate any input!
[G4 General] steadfasterX:
Yes sorry I forgot about formatting user data which is required as well . one thing you should do is to check if you completely lost the imei or if it's just an issue with the ROM.

You can do this by opening the imei boot screen . it works like this;

power of the device and disconnect any USB cable

then just press volume up and volume down the same time until you see the imei screen

you should see your imei and the serial is always empty. If you do not see your imei here we need to fix it first.

Please use your device model Thread and there use the search before because that is a known issue
[G4 General] bayr691@gmail.com:
Thanks steadfasterX. Now i'm much brave to unlock my device. Although i also found qfil files for F500.so after usu can i go back stock F500 rom. Basically can i revert usu by using qfil? Please help

Thanks again
[G4 General] steadfasterX:
No No No No. I said that billions of times already as that's

NOT

UsU related..

UsU or not: NEVER USE QFIL unless those files have been

VALIDATED

!

There are dozens of files out there claiming to be for a F500 or H815 or H81x but THEY ARE

NOT

!!!

THEY *WILL* CONVERT (irreversible) your device WITH NO WAY BACK!

When that happens device models like the f500 will

NEVER BE ABLE TO GET

mobile signal anymore! FORGET QFIL (unless the files have been validated)!

While its easy to validate those you need linux and know "how" ofc. If you are interested in the "how" meet me on IRC.

For the rest:

read FAQ #1

of this thread. Its totally clear written if you can revert your model or not (regardless of QFIL files for your device exist or not)

.
[G4 General] bayr691@gmail.com:
Oh my bad sorry2. I have been deleted those files after your response. I finally realized that there is no way to revert back F500 bootloader (aboot). But there is way to flash F500L partitions expect aboot right? Also is there any way to modify LG splash screen? That's good idea for me.

Thanks you. You are best developer.??

---------- Post added at 07:01 AM ---------- Previous post was at 06:53 AM ----------

It's me again. My device now on nougat firmware. So if i flash usu will it work? Or do i have to downgrade to mm.

Thanks
[G4 General] steadfasterX:
There is a tiny thanks button for useful posts on XDA ;)

when you say LG splash screen what do you mean exactly (there are 3 things which get displayed on boot)

Read the REQUIREMENTS topic in the OP. Especially #3.

Also consider to read through the whole OP again and through the FAQ as well.

.
[G4 General] bayr691@gmail.com:
Got it. Basically mean boot logo.
[G4 General] roberto888:
Hey! Yes, I can see my IMEI, and the S/N is empty.
[G4 General] bayr691@gmail.com:
Hi [MENTION=5545101]steadfasterX[/MENTION]

So is there anyway to modify or change LG boot logo? Since we have our device's raw resource (that holds all of boot graphics) i think that it's possible to change and modify.

---------- Post added at 10:18 AM ---------- Previous post was at 10:17 AM ----------
[G4 General] steadfasterX:
raw_resources do NOT hold all boot graphics.

we can break it down into 3 phases:

1) LG logo presented by the bootloader (we can not change that)

2) Verify-Boot result presented by the bootloader but loading pics from raw_resources (see here)

3) LG or custom ROM boot logo presented by the ROM

So I guess.. (as I still dont know which one you're referring to) that you want 2 or 3.

The second one is possible and me and [MENTION=8699949]ThePiGuy[/MENTION] tried to script a way to modify it (here) but its far from working (its NOT that easy)

The third one is easy and there are plenty of guides.

In ANY case this is the WRONG thread for these kind of things.

.
[G4 General] bayr691@gmail.com:
Thanks for your response. Verify boot means official nougat bootloader warning message does it? I realized that those LG device's LG Life's Good logo unchangable. I never post thread like this.

Thanks.
[G4 General] steadfasterX:
just read my post again and follow the links.

.
[G4 General] iannisb:
I recently bought an H815T off ebay.What the seller did not state was this device was an H815T not an H815EUR i wanted!

So my question is even if i unlock the bootloader what roms can i use? On my old G4 H815T i had the V30 port rom , can i use that one or not?
[G4 General] sdembiske:
Suggest you read or re-read the OP in this thread, in particular, LIMITATIONS / KNOWN ISSUES, points 1,2 and 3 and check the rom listings in the Downloads section that there is a link to.

So if you want to proceed with the V30, you must ascertain that those 3 points are met, i.e., no bootloader stack and no aboot file in any bootloader stack in the rom. I would suggest, in the LG G4 H815 V30 rom thread, you enter in the search bar there, bootloader stack, and see what pops up, so you don't screw up like one member did, before proceeding.

Note

: Unless you really know what you're doing, any time you go off from the custom roms listed in the Downloads link in this thread, you are increasing your risk ...
[G4 General] iannisb:
I just finished unlocking the bootloader , everythinig went fine. I backed up eveyrything including through TWRP as well. I wanted to root the stock rom so i used UPDATE-SuperSU-v2.46. Now the rom wont boot. I still have TWRP (but cant find the backup!) and fastboot . I can access the device through download mode but how i cant find the backup i did through salt;

Any solutions?

Scratch that. I did it. Its 05:40AM and im on Lineage! Thanks SteadfasterX!Which Root should i use ?

Scratch that too , i install the V30 port rom...
[G4 General] sdembiske:
If you're going to use SuperSU, you want to download SuperSU-v2.82-201705271822.zip and flash it in TWRP. You can download it from here: https://xdaforums.com/apps/supersu/stable-2016-09-01supersu-v2-78-release-t3452703 - choose the TWRP / FlashFire installable ZIP

Note: SuperSU is no longer in active development and the free app on Play Store is no longer available - if the .apk is installed it will disappear from view on reboots/restarts of the device and can only be accessed by secret code: *#*#1234#*#*

Magisk stable from here: https://xdaforums.com/apps/magisk/official-magisk-v7-universal-systemless-t3473445

Note: encryption will not work with Magisk but is the best root management app, IMO, with extra modules available

Lineage su: LineageOS Downloads - Extras from here: https://download.lineageos.org/extras

Note: The root option that steadfasterX uses, allows encryption but the management of granting root access to apps is lacking, failing to save settings for granting root access always for a number of apps, requiring them to have to be granted each and every time - annoying, IMO.
[G4 General] iannisb:
Thank you ! I accidentaly briched my device and just revived through qfil!
[G4 General] sdembiske:
Hmm ... I guess you never did read the OP thoroughly and completely, in particular under FAQ, let alone fully comprehend it ...

23) I wanna / I have flashed with QFIL. Is/Was that a good idea?

You could also have referred to post # 1454 on the previous page. No soup for you!
[G4 General] iannisb:
Well i am in an peculiar situation. After i bricked my device i used the 9008 qualcomm drivers and the 3 Boot files i have again TWRP and download mode . i direct flashed the USU through SALT and got an error messa ge ''your download mode is not supported!'' downgrade to LP or MM !
[G4 General] iannisb:
http://bpaste.net/show/f3fed5527096

please help . while salt unlocks the device fastboot commands are not executed when i enter the device in fastboot!computer doesnt 'see' the device?
[G4 General] steadfasterX:
SALT runs in download mode. Download mode is not fastboot.

The SALT logs show the unlock went fine.

If you have issues in fastboot show them and tell what system you're using (FWUL, windows, running virtualbox...)
[G4 General] Black6spdZ:
I'm surprised that this unlock has come for such and old device.. unlocked my vs986 just fine but until the bugs get worked out for Verizon service I don't suppose anyone has debloated the stock ROM? The less the better, even wouldn't mind Google services gone
[G4 General] iannisb:
i actually succed to instal this : https://xdaforums.com/g4/development/h815-nougat-stock-t3659860 BUT SIM doesnt work

i have this message as the android boots : current version is not available for user cant find matched cust for NTCODE=[FFFFFF,57] my device is recognized as ls991 after fwul/salt unlock
[G4 General] steadfasterX:
At the time when I started to find an unlock it wasn't that old ;)

No sorry I'm alone here.

There are only users wanting to USE but no one wanting to help in development. Especially when it comes to models not many ppl have (while the vs986 has at least more unlocks then some of the others).

So feel free to create one ;) Especially for debloating there are tools like AIK etc.

regarding LS991: consider to read the FAQ (#4)

the NTCODE is nothing serious (afaik) and for that search XDA as that has been asked /answered somewhere already.

You must flash the things in a structured order otherwise you mess things up.

So read the FAQ (I cant say it often enough it seems) especially #16 and assuming that you have a h815 (ONLY THEN!) flash the G4_ARB-any_v29a_FULL-STOCK-ROM_UsU.zip and the UsU stock kernel from here afterwards: https://xdaforums.com/g4/development/kernel-usu-patched-kernel-versions-t3763679

Then reboot and test again. If there is still not signal go into the android settings and set to GSM/2G and wait 10m. Still no signal set it back to 3G or LTE and wait again. Still no signal reboot once again.

.
[G4 General] Black6spdZ:
Don't get me wrong, not bashing this at all.. its great to see someone willing to do whatever necessary to prolong the life of a phone this day and age when most see them as disposable gadgets.. why else seal and glue in batteries. It saddens me to see even see this site is pretty much only a shell of its best days when the phone modding community wasn't split between 100s of different phones and expected EOL was more than 12 months. Who here knows what an XDA was? ;) My personal phone is a V20 and not giving it up until another phone comes along that is serviceable again. My work device is a vs985 only because it can run lineage, the G4 is sitting collecting dust but I see here there is hope!
[G4 General] iannisb:
regarding LS991: consider to read the FAQ (#4)

the NTCODE is nothing serious (afaik) and for that search XDA as that has been asked /answered somewhere already.

You must flash the things in a structured order otherwise you mess things up.

So read the FAQ (I cant say it often enough it seems) especially #16 and assuming that you have a h815 (ONLY THEN!) flash the G4_ARB-any_v29a_FULL-STOCK-ROM_UsU.zip and the UsU stock kernel from here afterwards: https://xdaforums.com/g4/development/kernel-usu-patched-kernel-versions-t3763679

Then reboot and test again. If there is still not signal go into the android settings and set to GSM/2G and wait 10m. Still no signal set it back to 3G or LTE and wait again. Still no signal reboot once again.

.[/QUOTE]

My mistake.Thinking after fwul/salt unlock the device in now a ''h815usu-ed'' , i could use this rom v29a.

I am taking this to another thread https://xdaforums.com/g4/development/rom-cypheros-4-2-t3782204
[G4 General] jjcdennis:
I have an issue where my screen goes black when I make a call and I can't wake it up. Ie: If I have to enter a number for an extension I can't make the selection as the screen is black. I have read a lot and came upon a solution that involved recalibrating the proximity sensor. I need the hidden menu number to do this, but I cannot find one that works. I saved the one that worked before root/Lineage flash, *#277635*#812# to my contacts, but that number no longer works. Was there a change to this access with root and/or flashing Lineage 15.1?

Device = H812

The hidden menu apk would not install.
[G4 General] steadfasterX:
the hidden menu will work only on stock ROMs. for this you can also use the hiddenmenu app.

Besides that I dont think that calibrating would fix it.. You can disable the behavior of the proximity sensors during a call in the android settings (iirc only on stock but maybe on custom ROMs other then LOS as well. in LOS 15.1 I cant find that option..)

.
[G4 General] jjcdennis:
would disabling the sensor help? Thanks for the 1.7 version, it installed. Unfortunately it stops when I hit the LG Hidden Menu key
[G4 General] steadfasterX:
do you have tested that on STOCK?
[G4 General] jjcdennis:
No I never did. I had the problem on stock and hoped that rooting and a Lineage rom would help.
[G4 General] steadfasterX:
i told you in my previous post already that the hidden menu (which includes the usage of that app of course) will only work on stock
[G4 General] jjcdennis:
Sorry I thought you sent me a link to a working apk. Do you think disabling the proximity sensor will help?
[G4 General] COKEMAN92:
I have a non fusing H810, but SALT reports the ARB as 3 and prevents me from going further to prevent damage (good idea). I understand that non fusing devices might be able to be flashed to a lower level and unlocked. I also understand it is a gamble and I might brick the phone. BUT is there a way to override the safety in SALT and unlock this device anyway? Or should I just blow it off and move on to another device?

GPT compatibility shows H811. Does that mean that I might be able to unlock using something else or is that really just indicate what ROMs I should use?
[G4 General] steadfasterX:
First show me that your device is non fusing ( pic ).

Yes it's possible to override that safety check in SALT but for this we need a tmate session (e.g. in FWUL)

GPT compatibility means you may can install a ROM for that shown model. We have 2 major partition table differences which I translated as h815 and h811. If interested in more details let me know.
[G4 General] COKEMAN92:
Having trouble getting the image to load. Guess not enough post even though I have been here forever... Pic is in my gallery if you want to go look. Should be the only one there

If it turns out to be that big of a deal, I'll just blow it off. This phone is having major reception and call quality issues since it was upgraded to MM. I have read a few reports that installing LineageOS fixed that for some people on this model so I was going to try that. It's not my phone, so unless it is really worth it to unlock this one, I may not bother. The actual user in not tech savy at all, so I might be about to cause myself more support calls than if I just have them get a new phone.

I took the phone apart to verify it's an 810. It is obviously a refurb. The main board says 810, but the lower part of the internal cover says f500. I suppose this could end up being a frankenstein phone.
[G4 General] mark324:
Question, The TWRP link you had was in the O (oreo) directory, I am on MM, do I need to download the one in the MM directory or is the one in the "O" ok to install?

Also in SALT I made a full backup before doing any unlocking or flashing, can I use that backup to restore my Phone to after unlocking.
[G4 General] sdembiske:
Refer to the following link for the appropriate TWRP version for your rom: https://xdaforums.com/g4/development/recovery-twrp-3-touch-recovery-t3442424

- Recommend to install the latest preview version for the rom version (MM, N or O) you're on at any given time.

Use the appropriate TWRP to backup your phone once you're ready. The SALT back up will come in handy when any problems arise when you're installing custom roms. The SALT backup is used to primarily currently to restore certain partitions etc., when specific issues arise.
[G4 General] mark324:
OK thank you, I'll go ahead now and unlock.
[G4 General] mark324:
So I am unlocked and twrp installed, no problem so far. I just wanted something clarified, one of the steps was to flash modem and baseband zips, the thing is I skipped those steps and booted fine, I flash these only when I change my rom, right? Say right now Im still stock MM, I'm planning on going to lineageos Oreo, that's when I should flash the modem for that ROM and baseband right? But the thing is with that ROM it says use MM modem, I shouldn't have to reflash anything right, since I'm already on MM,or does it get overwritten with the new rom.?
[G4 General] steadfasterX:
Topic "Making the baseband flashing obsolete" of the OP.

But why you skip steps of such a risky operation? You had luck not skipping more important steps. When it boots fine without you have an older MM release. Which model and firmware do you have?
[G4 General] mark324:
I just wasn't sure if I'm supposed to flash that N modem when I'm still going to be on stock MM os. What I understood from postings was,flash modem and baseband only when upgrading to different Android version, since I wasn't upgrading yet, I figured I leave that alone for now.

So far so good though, I have flashed LineageOS and Gapps, I haven't touched modem baseband neither since again, it said use MM modem cause N modem don't work,so I didn't flash anything since Im still on MM(I'm guessing,since I skipped those steps)

Please let me know if I should still flash that modem and/or the baseband

PS. I was on h812 MM rom 20z
[G4 General] steadfasterX:
There is a general rule: if everything works don't touch it!

Ensure you always do TWRP backups before you change things or install a new ROM. Ofc it's a good idea to do another backup when everything works ;)

Btw:

Another gernal rule is (on XDA): use the thx button on all useful posts ;)
[G4 General] mark324:
:good:Gotcha,thanks boss
[G4 General] strikerforce:
thank you very much [MENTION=5545101]steadfasterX[/MENTION]

---------- Post added at 05:40 AM ---------- Previous post was at 05:40 AM ----------
[G4 General] sananth:
First off, thanks [MENTION=5545101]steadfasterX[/MENTION] for keeping my VS986 Verizon LG G4 alive! I followed your steps, and as soon as I tried to take a backup (both basic and full), I get the following error:

ERROR: Calculated target size is too small!

I have uploaded the debug log here:

http://bpaste.net/show/9a310218d2c3

Could you please look into it when you get a chance? Thanks again for all your help!
[G4 General] steadfasterX:
as this is purely SALT related we go on here: https://xdaforums.com/g4/general/tool-salt-lg-revolution-t3717864/post77971603

.
[G4 General] jjcollector:
Hello,

I'm trying to get TWRP on a friend's VS986. SALT fails at the pre-test. Is there something I'm doing wrong or am I out of luck?

Thanks in advance!

http://bpaste.net/show/0e591f2e4306
[G4 General] steadfasterX:
Use the sdcard or external sdcard method instead of direct flashing.

AND do not skip the step for taking backup BEFORE unlocking. Keep that backup at a safe place.
[G4 General] jjcollector:
Backups are failing with the message "Calculated target size is too small!"

http://bpaste.net/show/412d23dbea24
[G4 General] jmorfeos:
Hi Again, I want to make Usu but when I open Salt it says that my GPT Compatibility is H811 but my phone case and Info says H810 :confused:

See picture below

That's could be the problem of my phone? Should I change ROM to H811 or change GPT to H810?

Thanks for any help, phone has a factory reset and without SIM Card sometimes is rebooting itself, very stange
[G4 General] adam_s_459_:
Your phone is an H810, and your gpt compatibility is H811. I see no problem....... You install either h811 or h810 ROMs (when available) just proceed with the unlock process...

EDIT: maybe read the OP again too
[G4 General] jmorfeos:
Thanks Adam, in OP is was clear to me that it was GPT compatible H810 but I read a few post after and they say that H811 is compatible.

So I have successfully UNLOCK my H4 H810!!!! Thanks [MENTION=5545101]steadfasterX[/MENTION] again!!! , now I'm trying to install AOSCP ROM
[G4 General] steadfasterX:
This is SALT related so moving discussion to here: https://xdaforums.com/g4/general/tool-salt-lg-revolution-t3717864/post78025362

.
[G4 General] conbak49:
All,

I have a Cricket/ATT G4 I rooted by flashing a rooted KDZ (@ least i think that's how I got root. It's been awhile...). My G4 is an H812 and the current software version is H81210g. I want to unlock it, but not sure how to proceed. From searching through this thread it sounds like I need to upgrade from LP to MM for the best chance at a successful unlock. It also sounds like from reading through this and other threads that I need to flash the correct version of MM so that ARB is less than or equal 2 and so that it is compatible with my current H81210g software(?). So what is the right KDZ to flash (through LGUP right?)? And what is the right process for flashing? Sorry if this has been answered elsewhere as I have been unable to find anything that sounded like a definitive answer.

Thanks!
[G4 General] sdembiske:
All stock H812's kdz's are ARB=0

Restore back to your stock LP first with LGUP-NEW, before doing anything (important)! Then use LG Bridge to upgrade to MM with an H81220x (x thru z minimum recommended MM versions for the unlock process to work successfully without issues when you start flashing custom roms). Backup your phone with SALT once you've upgraded to MM. You can check here for suitable kdz's, if needed: https://lg-firmwares.com/lg-h812-firmwares/firmwares/

Once you're on stock MM, then proceed to unlock ... following the process in the OP exactly, making sure you understand fully.
[G4 General] conbak49:
Thanks so much for this information! I did not know that about H812 kdz's being ARB=0 and had not seen that anywhere else.

I am already on Lollipop - flashed a rooted kdz way back when - so when you say "restore back to stock LP" is that I step I still need to take?
[G4 General] sdembiske:
Yes, you must restore back to stock LP (i.e., un-rooted) before upgrading to MM stock.

NB:

Don't forget

to click the Thanks button (bottom right of post), when members answer your questions or provide useful information when trying to help. It's an XDA courtesy -

please learn to use it

.