yashsingh1/xdaforums huggingface dataset:
[G4 Android Development] GrzechuPL:
How to fix mobile data ? i turn on mobile data and nothing work :/ LTE no working
[G4 Android Development] MatteoB92:
Have you tried to set the carrier's APN manually?

Inviato dal mio LG-H815 utilizzando Tapatalk
[G4 Android Development] kessaras:
Yes ofc you can
[G4 Android Development] t.kijas:
My phone doesn't remember auto-brightness settings and every time it setup it into max. Does anyone have similar issue?

And have u guys been successful with installation of TWRP into noughat? My phone says just "corrupted bootloader" and then it continues to boot into system, no recovery.
[G4 Android Development] kessaras:
if you had a corrupted bootloader the phone now would be dead. and i mean really dead.

so..... read again.

about recovery, we also have a recovery TWRP thread for that
[G4 Android Development] MatteoB92:
There isn't a way to recover the bootloader?

Just for curiosity [emoji5]

Inviato dal mio LG-H815 utilizzando Tapatalk
[G4 Android Development] kessaras:
bootloader is the first thing that comes up when you power on.

if it gets corrupted the pc will never see the phone again and it will never turn on again.

The pc will only see a board number , propably an error, i don't know exactly what it is.

The only way to fix is sending it to LG. Only LG has the tools to fix that, they were never released.
[G4 Android Development] steadfasterX:
Sure. The question is what you're referring to. The word "bootloader" means more then just a single thing. .

The boot process is splitted into several parts. One part (PBL the primary bootloader) is not writable without special hardware.

The PBL loads sbl1 the secondary bootloader and that one aboot etc. (every step verifies the next before executing it ofc).

Usually you will have nothing to do with PBL and well corrupting that is in theory possible (while very very VERY unlikely) but not by an user action. The only reason I can think of which could corrupt the PBL is defective hardware.

Again: Even when flashing a kdz the PBL will NEVER be touched.

So yes you can write / restore every part or the bootloader without special hardware - except the PBL.
[G4 Android Development] MatteoB92:
Thanks for the explanation guys, you were so detailed [emoji6]

Inviato dal mio LG-H815 utilizzando Tapatalk
[G4 Android Development] ExtremeZero:
Some constructive criticism:

Would be too much to ask if you guys wrote a "guide" on the first page that didn't assume the readers have prior knowledge?"

Do we really have to figure out how to root our phones when it would have taken you 1 min extra to add some extra text and links?

This is the main reason the common phone user doesn't use this. Even if you out in the time and do it once, when you want to do it on the next phone all the software has changed and you have to once again spend time from thread to thread.

Also, keep the written guide on the first page updated. The user shouldn't have to read through the entire thread to find out about any changes that might have happened.
[G4 Android Development] Hostilian:
You need to do some reading.. Yes, it may seem like a lot at first - but that's because it is..

It doesn't take much.. Do some googling and browsing to see how the methods compare.. Choose not to do it and you have a good chance of bricking your phone - or scaring the crap out of yourself when you try the upgrade. This process ain't plug and play, phone manufacturers don't want you to do this easily - they want you to buy a new phone!

Look at post 443 (in this thread) for the procedure I wrote down when I did my upgrade..

My poor phone was dropped at Xmas.. Broken screen - so got a G6 - and have since replaced the screen myself and it's working perfectly again..

Nougat totally transforms the G4.. It's superb!

#H
[G4 Android Development] kessaras:
xda is not a community for "beginners".

A beginner in xda is someone who has at least basic knowledge of what is a bootloader, what is kernel, what is rom, what is recovery, what is root and how to flash all these.

>> Even though there are guides all over xda to help someone learn <<

Those guides are there for this purpose. We can't go through all the small details every time we announce a rom. This whole thing is done in our free time.

free time = free, not much time left, we got to go to work too.

You didn't think that maybe i develop more than just a rom for g4 ? if i write down about rooting for example, then people will ask about that too. And then what will the other threads do ?

The other threads will remain unused and my thread will attract all humanity ? And how am i gonna deal with all of them ? Do you think i have 8 arms or am i gonna do "kagebushin" (shadow clone) ? :D

And about the changes you mentioned.

What changes ? LG stoped developing for their phones. They only offered Android O 8.0 as a goodbye gift to g6.

They already stated that they are out of this smartphone fight and started developing something new.

So you won't find anything new looking here. If it wasn't for Google to release their open source code for everything, then there wouldn't even be a development around here in g4 community.
[G4 Android Development] capricorn85:
Hi

Is it possible for someone to upload stock recovery of V29A? I downloaded and installed the one that plays nice with TWRP and don't want to download the whole thing again just for recovery.img.
[G4 Android Development] tmihai20:
[MENTION=4291915]capricorn85[/MENTION]: there you go, extracted from LG-H815_Official_v29A.zip. I hope this is the stock recovery you want. I hope the link will stay up as long as possible https://www112.zippyshare.com/v/a7EW0QHD/file.html.
[G4 Android Development] capricorn85:
Relocking bootloader using fastboot oem lock

[MENTION=2782481]tmihai20[/MENTION] thanks for the share. I found the same file from http://droid.binbash.it:8008/stock/LG/h815/29a/LG-H815_Official_v29A_extracted/

It's in .bin format so just had to rename it to .img and edit it for 4 cores using https://xdaforums.com/g4/general/guide-create-custom-x-cores-boot-image-t3718389

Unfortunately my G4 bootlooped a long time ago, but it's still working for me, thanks to senior members who also provided 4 cores boot etc as well as guide to make your own images. Whenever it starts to misbehave, i heat the emmc chip and cpu with a heat gun for 10-20 seconds (while keeping all other components covered with some metal sheet) and immidiately put the logic board in freezer after heating. When it take it out the freezer after 30-40 secs, it has always worked 100% before finally going into bootloop again. I guess the process expands and then contracts the joints or whatever and puts them back in place. At least it allows me to flash a kdz, get to the OS and and then fastboot from where I can flash 4core-edited recovery boot etc.

LG G4 is so much fun, i never had such an adventurous time with any other phone! That's also the phone that taught me some things XDA is about.

To whom it may concern: On v29a i flashed stock recovery (after disabling the big cores @ both recovery.img and boot.img) to make it as close to stock as possible. Later on I also tried to relock the bootloader by fastboot oem lock. The bootloader successfully locked, but the phone got stuck on the screen saying "your device is corrupt. it cannot be trusted and will not boot. (obviously the boot.img and recovery.img were modified for 4 cores so this had to happen, but I wasn't aware of this by then......)

Later on, the solution was actually pretty easy. press volume down and plugin the usb cable and the phone will boot to fastboot. Just flash the unlock.bin like you did before (fastboot oem unlock unlock.bin) and verify. This will also factory reset the device, but obviously you cannt do much with it anyway at this stage and want the phone working again. Just wanted to share my experience in case anyone is thinking of relocking the bootloader the 'easy way'
[G4 Android Development] theSleepingGiant:
can it be rooted???

my h818p device is already using Nougat bySezerSimsek

can it be rooting??
[G4 Android Development] adilau:
Hi,

Can you help me with twrp...can not install!!!

Please...
[G4 Android Development] kenfalco_14:
Of course, in very easy way using linux FWUL or with windows with adb and fastboot . You need install TWRP recovery

too.
[G4 Android Development] sdembiske:
You cannot install a normal TWRP recovery on a locked bootloader - a simple check would indicate that the rom (that you have installed now) is for locked bootloaders. You will brick your device by following that advice.

Without downgrading to Lollipop 5.1, I don't believe you will be able to root your device, unless at some point you can unlock your bootloader, unofficially. The H818P presents a special issue and steadfasterX has not accomplished it for your device (he may never): Refer to [UNLOCK][UNOFFICIAL][G4] Unlock **ANY** LG G4 device with UsU and in that thread's search bar - plug in H818P.
[G4 Android Development] elrasho:
Great ROM, the performance is just like when I first got my G4. The camera is excellent and overall very fast. The interface looks old though but I'm going to try nova launcher.
[G4 Android Development] hello_world.c:
Dirty flashing of v29A from TWRP worked fine, no problems whatsoever. In a second step rooted with SuperSU, also no problems.

Thanks much, great job! :D
[G4 Android Development] whitewolf1608:
Hello, I am reporting occurring defects including Rom.

The cellular networks tab is not active - see the view on the screen.

Does not work. Service - GSM / LTE module - does not read the network.

In the menu where there is to be information about the network in the tabs there is no information.

In the menu, the imei tab is unknown.

I am asking if this is correct and is it to be so?

Screenshots here

https://photos.app.goo.gl/pexXPrTSDkqT4Htz8

https://photos.app.goo.gl/pKQHpxZRxosyLF9J8

https://photos.app.goo.gl/X21uke8pvH6VfHkH7
[G4 Android Development] raptorddd:
In the menu, the imei tab is unknown.

you did somthing wrong. now you need to get back your imei..
[G4 Android Development] whitewolf1608:
raptorddd I do not understand you.

Can you clearly and specifically write how should I get back this IMEI number?

Maybe I need an additional modem pack to install?

I am asking for support
[G4 Android Development] raptorddd:
i dont know... search for imei unknown

https://xdaforums.com/search/forum/4231?query=imei
[G4 Android Development] whitewolf1608:
Hello, I really like your LG G4 h815 :) Please, please help me recover

my IMEI number on this forum topic>

https://xdaforums.com/g4/help/help-imei-0-t3660318/page7
[G4 Android Development] kessaras:
use SALT to grab your misc partition. Open it with a hex editor, find your real mac address and follow this guide:

https://xdaforums.com/lg-g5/how-to/guide-fix-wifi-mac-address-changing-t3533841

nobody can help you because your real mac address is in that misc partition and its different to every device. good luck
[G4 Android Development] whitewolf1608:
Hello, dear kessars user

I am asking you with a very courteous request for information about the SALT application

is also available for download on the Windows OS operating system?

I am kindly asking you for a quick answer.

Because if the Salt application is only on Linux platform, then I will have to

to create Live Linux on USB.
[G4 Android Development] VersionTV:
Sorry for a newbie question,

I am using ResRemix Android 8.0 on my phone. Can I install this with clean flash?
[G4 Android Development] kessaras:
you can install anything you like in your phone since you are unlocked. But there is no support from LG since months, so if you flash any LG stock based rom modded or not, do not complain about any security vulnerabilities.
[G4 Android Development] lapist:
Wasn't final Nougat official update supposed to be released already like a year ago? Did LG forget what they promised? I suppose I will never buy any LG phone anymore ?
[G4 Android Development] steadfasterX:
They said they will release N for the g4.

F500 is a g4.

They had released N for the F500 officially.

They never said every g4 model will get it or even which will get it..

So..

It's all about interpreting but at the end... yes they have just f*** us.
[G4 Android Development] whitewolf1608:
Hello Dear steadfasterX

I've fixed my LG G4 h815 :)

Using LGUP, I've turned Android MarshMallow 6.0.

I am asking you with a very kind request for your support regarding

TWRP recovery.

I am asking for information whether it is TWRP Recovery> http://leech.binbash.it:8008/TWRP/N/

Is the latest Recovery?

Do I understand that using this Recovery I have to flash Oreo Rom?
[G4 Android Development] Tom342:
Barclays app or similar

Does the Barclays app or anything similar still block this?
[G4 Android Development] ma321:
Can i upgrade my Lg G4 At&t version to Nougat???

OS : 6.0 Marshmallow

Model : H81020n
[G4 Android Development] ThePiGuy:
Not with LG software (this is H815 specific and will brick your H810)

You can possibly unlock through UsU though and then you can go custom
[G4 Android Development] raptorddd:
check USU thread in general
[G4 Android Development] ma321:
Can u please share the link of USU thread...I am unable to find that link in General
[G4 Android Development] ThePiGuy:
https://xdaforums.com/g4/general/unlock-unlock-lg-g4-device-usu-t3760451
[G4 Android Development] igorgpsouza:
I just hard-hard-hard bricked my phone. I was on RR 8.1, UsU unlocked and decided to go back to stock. I knew I couldn't flash any KDZ or TOT files so I flashed the version provided by steadfasterX on this thread, the one which doesn't removes TWRP and keeps the phone SALT compatible. After flashing I hit reboot and now it doesn't turns on anymore. I tried booting into everything I know, fastboot, download mode... Nothing seems to work. I think that's it for my G4.

Any thoughts on why did it happen? At least I can warn other users.

And if I really did break my phone, thank you developers for the help so far!
[G4 Android Development] steadfasterX:
The UsU thread never mention to flash the file you have flashed.

The thread links the files you are allowed to flash on an unofficial unlocked device and even more on my Download server there are clear warnings which files are not compatible for UsU unlocked devices in big red color! I have no idea what to do more..

Your device is not hard hard bricked it's just hard bricked. check my signature for the SD card unbrick.
[G4 Android Development] igorgpsouza:
I knew I wasn't supposed to flash any kdz or tot, so I tried flashing a TWRP compatible version of the stock rom. I did read everything on the UsU thread but I must have forgotten something. I'll try to unbrick it and post the results here later. Thanks for the attention!
[G4 Android Development] whitewolf1608:
Hello, igorg souza, if I can help you somehow, I am with you in the subject. If you currently have Firmeware - which was flash - ed to an unlocked bootloder, I will help you get back to KDZ or TOT. I also had it and came back to Ro KDZ MarshMallow 6.0.

Write about all the details I am here to help you return to KDZ or TOT.
[G4 Android Development] ThePiGuy:
The zip is an exact replica of the kdz/tot but in a twrp flashable form. Therefore the same rules apply. To be sure what you can flash, open up the zip and see whether it has the bootloader etc in it.

He is hard bricked and needs to recover it. Also he has a UsU'd device so flashing a kdz is the last thing he wants to do (effectively that is what got him here in the first place)
[G4 Android Development] whitewolf1608:
Ok, then, we are waiting for the post :)
[G4 Android Development] ma321:
I have already upgraded my G4 (At&t) from lollipop to Marshmallow by following this link:

https://xdaforums.com/att-g4/genera...ndroid-6-0-t3323995/post65540477#post65540477

Now i am facing some issues on marshmallow like Security not working in settings...I want to upgrade my LG G4 from Marshmallow to Nougat .... Is it okay if i use your way of unlocking and upgrading of Nougat ?? will it brick my phone ??

Mobile Details:

LG G4 - At&t

OS: Marshmallow

Software Version : H81020n
[G4 Android Development] ThePiGuy:
You mean UsU? If so, read the OP in the UsU thread as it tells you everything you need to know

P.S. Check your ARB. If it is 2 or less, UsU will work. 3 or above and you cannot do it (it will brick your phone)
[G4 Android Development] ma321:
Yes i am talking about UsU thread......I checked my ARB..it is 2

Am i good to go for UsU ??
[G4 Android Development] ThePiGuy:
That's good. Now head to the UsU thread and read the OP carefully. Any questions about it, ask it in the UsU thread (this is off topic here)
[G4 Android Development] whitewolf1608:
Hello, dear useer ma321

Dear Usera as you had Android Lollipop on LG G4 h815 - you know how this system works on this smartphone. Is Laucher that we run with a green handset - I mean Laucher who is responsible for the register of calls (received calls, calls not answered, etc.) - does not cut when scrolling in the menu of this laucher?
[G4 Android Development] ma321:
I was using LG G4 h810 (At&t) with Lollipop..Everything was working fine except Battery Issue....Now i am on Marshmallow and i am facing security issues on g4...I am unable to lock my device
[G4 Android Development] ThePiGuy:
Were you unsuccessful with UsU then?
[G4 Android Development] ma321:
I didn't tried that UsU method on my G4 that time.
[G4 Android Development] whitewolf1608:
Hello, Dear ma321 user :) Bradzo, but we really want to help you solve your problems with LG G4. I am asking you for details - why can not you block your device? Do you mean specifically about the bootloader in LG G4? Dear ma123 user, please kindly provide details - regarding this particular problem occurring with the blocking of LG G4 - we with ThePiguy user at the moment can only guess the details of your problem. Until you describe the details of your problem in the post, it is difficult for us with the user ThePiguy will show you the correct directions and a map of solving your problem - until you write the details of your problem? I am asking you right now, is the problem with the correct connection of your current operating system to your PC with your smartphone? Is your smartphone connected correctly to your PC operating system? As I mentioned earlier, with ThePiguy, we can now give you directions and a map of a solution that is not specifically addressed to your problem - because we do not know the details of this problem. On a good day, Dear user has 321;)
[G4 Android Development] Dark_Assi7:
Can someone made a tutorial step by step how to do it properly?
[G4 Android Development] ThePiGuy:
Bootloader locked or unlocked?

(Btw just checking, you have an H815 don't you, as this will brick anything else)
[G4 Android Development] Dark_Assi7:
Unlocked and yes I have the LG-H815
[G4 Android Development] ThePiGuy:
Ok. Make sure twrp is flashed as you will be flashing the zip in there.

Also I would recommend making a backup in twrp and also maybe even with SALT (in General section here)

I'm not sure if you need to wipe - personally I would as you are changing ROMs but that's just me.

Then flash the zip from http://leech.binbash.it:8008/stock/LG/h815/29a/

Either LG-H815_Official_v29A.zip for the full experience - wipes twrp and also replaces the Download mode with a salt-incompatible version

Or LG-H815_Official_v29A_keepsTWRP-LAF.zip which keeps the TWRP and the download mode
[G4 Android Development] Dark_Assi7:
I have to wipe the system to?
[G4 Android Development] ThePiGuy:
Do you mind factory resetting?

If not, then wipe system, data, cache and dalvik before flashing the zip
[G4 Android Development] Th3_uN1Qu3:
Thank you very much for this official firmware, I have bought a G4 for $50, it just had a bad battery. Was successfully able to flash this and it runs great. I have unlocked the bootloader using the official method before installing.

I have just one quick question, could I relock the bootloader on this firmware, or must it stay unlocked? Because I get a message at startup about this. I only booted TWRP to be able to flash this, did not install it, and I have not rooted the phone.
[G4 Android Development] kessaras:
if you flashed the whole package and not the one that keeps the TWRP untouched, then yes you can relock the bootloader using the command fastboot oem lock.

**BE CAREFUL

if you do any mistake and even one partition of the bootloader stack, or recovery is NOT OFFICIAL LG, bang. You are locked out without any chance to fix it unless you send it to LG repair center.

***Only one way to recover if you unofficially unlock the bootloader using steadfasterX unofficial unlock.

Do NOT relock the bootloader. The unlock is official and does NOT matter if you are unlocked !!!
[G4 Android Development] ibby665:
Can any one pm about flashing the bootloader from v29a nougat to the original one which is v20 I think I gave an lg g4 h815 ? Please need help asap
[G4 Android Development] bernavaldiesel1:
hello guys lately I have acquired a lg v10, one of the things that I liked is the upper tab with access to applications ... my question is, .. could be added to the stock? or to the freedom of kessaras? would it be too expensive a challenge? tell me what you think.

Kessaras is the best!! Thanks for your work!!

---------- Post added at 10:40 PM ---------- Previous post was at 10:34 PM ----------

better describe your problem, what model is it? etc... if you put the imei tells you the original model and therefore the original .kdz.

https://proimei.info/en/checker/lg
[G4 Android Development] Th3_uN1Qu3:
Yes, I have this setup.

^^ This, and the affirmation above it contradict each other.

Either way. I am looking to just buy a new battery for this phone and resell it. But maybe the future owner also wants to play with different ROMs. So I will leave the bootloader unlocked.

The extra notice screen about the bootloader that shows up before bootup with the LG logo does not bother me, but some people freak out when they see other stuff going on when they turn on a phone. Same reason TriangleAway was created for the Samsung SII and others. But I will leave this phone as it is, it works great with this stock Nougat ROM. "If it's not broken"... :D

Thanks again for your assistance.
[G4 Android Development] kessaras:
Safest way out there to relock the bootloader is to flash latest kdz. This way you r 100% sure that everything is ok.

Besides, if the guy who will buy it , he doesn't like the relock caution on boot, he should go with the "flow" and stay with latest LG release , which is v20 ;)

He shouldn't complain for marshmallow ;)

But if you still want N and relock it goes like I said.

https://xdaforums.com/g4/general/managed-to-relock-bootloader-t3660282

Be careful. If any partition , is NOT official LG kiss your g4 goodbye (unless UsU unofficial unlock works for you and fix it again , but your device will be able to use UsU ROMs and don't even think about flashing another bootloader stack)