Develop Bugs

I think I bricked my G3

Hi guys, idiot here.
I was trying to root and flash a custom rom on a D850 earlier but made the mistake of not knowing this was a D850 as I'm in the UK, so basically the rom I flashed was for a D855. It wouldn't boot.
I'm trying the androidrootz guide at http://www.androidrootz.com/2014/07/how-to-unroot-lg-g3-all-variants.html to take it back to stock but the LG FlashTool is saying the model is a D855...I've taken the cover off the back and it says D850 in more than one place.
I can't figure this out. I've tried the D850 and D855 TOT and DLL files in the flashtool and neither work. The D850 files tell me it's the wrong model and the D850 files tell me something about a partition change failure.
I can no longer access recovery as the FlashTool seems to have done something to wipe it, as it gets around 6% through. The only screen I can access is the firmware update screen.
Any ideas? I'm desperate.

Use the first method from here http://forum.xda-developers.com/showthread.php?t=2785089

Hey, i know this post was posted 2 years ag but I have the same problem, did u manage to solve it?

accidentally flashed D855 rom to LS990.. HELP!

Hello everyone !
So i bought this G3 online (second hand), on th back it sais it's D855 variant 32/3 and it had kitkat.. and wanted to upgrade so i looked it up and found MM update 30B.kdz so i backed up my EFS and flashed it then i got stuck in a bootloop so i flashed another rom LP 21A.kdz and it worked but no network neither WiFi or BT.. USB debugging works but no MTP or PTP connexion and Model name became D855V.. i looked this problem online and someone mentionned it may be caused because it's a different variant, checked my device info on some IMEI check websites and they said it's L990.. i opened it up to confirme and it says it's indeed a LS990 on the motherboard.. so i tried to flash a LS990 rom back but al i could find is a .TOT extension roms which demands a .dll file and check etc.. i tried flashing them using LGUP and LG Flash Tool and they both gave me an erreur message that it's a different device modele.. tried different .dll files LS990....dll , D855....dll and LGUP8974.dll wich is supposed to ignore some checks but still nothing worked.. i think .kdz roms doesn't do that check wich brought me to this problem in the 1st place.. but i couldn't find a .kdz rom for LS990 anywhere.. found US990...kdz but don't think it's the same !
guys please help !.. i'm a civil engineering student whom is drowning in debts and spent the last money i got on this phone because i needed it and can't afford to lose it like that.. you could letteraly save my life ;D
sorry for bad English.

Download LS990 .tot and D855's .dll. Use a hexeditor to change the headers of the ls990 .tot to the name found on the D855's .tot. Flash the generated LS990(now disguised as a D855) .tot unto phone using the D855's .dll

So i installed a hex editor(HxD) and opened the LS990 .tot and searched for every "LS990" header and changed them all to what replaces "D855" in D855 .tot.. stop me if i'm in the wrong way, then saved the work so the LS990 .tot should be disguised as a D855 .tot right ? and i got the D855 .dll already. is that ready to be flashed now ? wouldn't it cause a hardbrick or sth ?.. it's not like i have many options but i just don't want to make things worse..
Ps: while i was in Maths class i was trying o think of sth.. and thought
that i may be able to root it and install TWRP then flash a LS990 rom since i have USB debugging working.. but i have to root it first and the way to root it while on LP is LG One Click Root but i'm having a hard time doing that although i tried everything but i think that's because of the wrong rom.. just wanted to mention it !
Thank you Sir !.. i'm waiting for your comments before i flash the modified Rom !

So i installed a hex editor(HxD) and opened the LS990 .tot and searched for every "LS990" header and changed them all to what replaces "D855" in D855 .tot.. stop me if i'm in the wrong way, then saved the work so the LS990 .tot should be disguised as a D855 .tot right ? and i got the D855 .dll already. is that ready to be flashed now ? wouldn't it cause a hardbrick or sth ?.. it's not like i have many options but i just don't want to make things worse..
Ps: while i was in Maths class i was trying o think of sth.. and thought
that i may be able to root it and install TWRP then flash a LS990 rom since i have USB debugging working.. but i have to root it first and the way to root it while on LP is LG One Click Root but i'm having a hard time doing that although i tried everything but i think that's because of the wrong rom.. just wanted to mention it !
Thank you Sir !.. i'm waiting for your comments before i flash the modified Rom !

flashed D855 rom to LS990 and only .tot roms available "device modele diff".. HELP!

flashed D855 rom to LS990 and only .tot roms available "device modele diff".. HELP!
Hello everyone !
So i bought this G3 online (second hand), on th back it sais it's D855 variant 32/3 and it had kitkat.. and wanted to upgrade so i looked it up and found MM update 30B.kdz so i backed up my EFS and flashed it then i got stuck in a bootloop so i flashed another rom LP 21A.kdz and it worked but no network neither WiFi or BT.. USB debugging works but no MTP or PTP connexion and Model name became D855V.. i looked this problem online and someone mentionned it may be caused because it's a different variant, checked my device info on some IMEI check websites and they said it's L990.. i opened it up to confirme and it says it's indeed a LS990 on the motherboard.. so i tried to flash a LS990 rom back but all i could find is a .TOT extension roms which demands a .dll file and check etc.. and no .kdz since Sprint didn't realease any as far i found out, i tried flashing them using LGUP and LG Flash Tool and they both gave me an erreur message that it's a different device modele.. tried different .dll files LS990....dll , D855....dll and LGUP8974.dll wich is supposed to ignore some checks but still nothing worked.. i think .kdz roms doesn't do that check wich brought me to this problem in the 1st place.. but i couldn't find a .kdz rom for LS990 anywhere.. found US990...kdz but don't think it's the same !
So somone told me to try sth so i installed a hex editor(HxD) and opened the LS990 .tot and searched for every "LS990" header and changed them all to what replaces "D855" in D855 .tot.. stop me if i'm in the wrong way, then saved the work so the LS990 .tot should be disguised as a D855 .tot right ? and i got the D855 .dll already. i was worried that it would cause a hardbrick or sth .. it's not like i have many options but i just didn't want to make things worse.. then i tried to flash it anyway but both lg flash tool and lgup pop up an errour message after check and stops before it even starts
Ps: while i was in Maths class i was trying o think of sth.. and thought
that i may be able to root it and install TWRP then flash a LS990 rom since i have USB debugging working.. but i have to root it first and the way to root it while on LP is LG One Click Root but i'm having a hard time doing that although i tried everything but i think that's because of the wrong rom.. just wanted to mention it !
guys please help !.. i'm a civil engineering student whom is drowning in debts and spent the last money i got on this phone because i needed it and can't afford to lose it like that.. you could letteraly save my life ;D
sorry for bad English.

Help save a bricked lg g3

:crying:
My issues is quite complicated. Please be patient and read on.
Less than a week ago, I bought an LG G3 D855. It wasn't brand new and definitely out of warranty.
It was on the 4.4.2 Os version but I couldn't update it because I couldn't locate the UPDATE CENTER and after some research online, I found out it was because it was rooted. I couldn't find a Supersu application anywhere on the phone anyways but Root checker confirmed that it was rooted.
I downloaded the stock kitkat firmware in a .tot format and I tried flashing using LG Flash Tool for TOT but it failed because "Device version is different"
I checked the Imei online and it stated that the device is a Sprint LS990 but the details embedded in the phone all say it is D855
I checked online and found a couple of posts about this error and one user said he was able to fix it by flashing the actual Sprint .tot with the lg flash tool. I tried that but it didn't work. It still said "Device version is different. Check BIN or dll"
I checked online and found results pointing to a generic .dll file for G3s and I downloaded it but when I used it on the Flash tool, it resulted to an error "CrossDL blah blah"
So I found a Marshmallow kdz file. LGUP won't see my device model so I was able to flash it after editting the software in my build.prop to D85510n.
***I have always changed the port to COM41 in all the steps I used
The LG UP detected my model and it flashed to 100% but got stuck on a bootloop by loading the lg screen, freezing and restarting by it self. It never gets to the homescreen.
I downloaded lollipop kdz reflashed using LGUP in a form of downgrade and it got to 100% and got stuck at the lg screen while trying to reboot.
I redownloaded the stock kitkat rom and used the Lg flash tool but it failed. It said 'PID null IMEI Null"
I used LGUP to reflashed. It came to my understanding that the LGUP can flash both kdz and tot. So it flashed to 100% but got stuck at the lg screen and I have tried all I can but it is stuck. It can go into download tho. I don't know what to do about the IMEI. I don't know if the last flash retrieved it. I don't kniw what to do.
It no longer shows as LGE AndroidNet USB Serial
Please can anyone help me?
I just need my phone to work again. I was stubborn and now I regret it. I should have just stuck to kitkat. I'm so desperate to get my phone working that I wouldn't mind Android Froyo Os if it was ever possible.
PLEASE HELP!!!

Same problem here

RsGilbert said:
Same problem here
Click to expand...
Click to collapse
Hey. I got it fixed all by myself. Whatsapp me at +2348166225097 and I will help.

I own lg g3 d855
It boot until home screen but after a while black screen and it s hard to power on it again. Then need to wait a time to boot it again.
What the problem?
---------- Post added at 06:50 PM ---------- Previous post was at 06:46 PM ----------
Amlmx said:
I own lg g3 d855
It boot until home screen but after a while black screen and it s hard to power on it again. Then need to wait a time to boot it again.
What the problem?
Click to expand...
Click to collapse
Please anyone can help me?
Thanks

Thank you Litblogger
Litblogger said:
Hey. I got it fixed all by myself. Whatsapp me at +2348166225097 and I will help.
Click to expand...
Click to collapse
My thanks to Litblogger and xda. I got it fixed with your help on whatsapp, Litblogger. My phone is currently back to stock. I couldnt thank you again because the phone is now network locked. Maybe we could speak on facebook. My user name is Gilbert R Ssenyonjo.

RsGilbert said:
My thanks to Litblogger and xda. I got it fixed with your help on whatsapp, Litblogger. My phone is currently back to stock. I couldnt thank you again because the phone is now network locked. Maybe we could speak on facebook. My user name is Gilbert R Ssenyonjo.
Click to expand...
Click to collapse
Folks.
Got the same problem now (with my wife's phone). I'd appreciate it if instead of helping people privately you'd tell everyone what to do to fix the problem.

I had the same problem, downloaded .tot file via IMEI check (can't remember where from) and used that .tot file with BoardDiag, flashed everything as in tutorial (google it), it was 4.4.2 Android, couldn't update it (software is up to date) so I rooted it, flashed twrp 3.0.0 and installed Fulmics 8.0, it works now just fine

LG G4 Refurbished

Bought a refurbished G4 from Ebay. My question is can I flash custom rom on this device?
In general the device model shows it is H815 version.But when I do IMEI check it shows F500S.What is the actual variant?
Thanks..

yours best option is ... to dissasemble the phone and remove the motherboard .. search for video on you tube for tear down. take motherboard out and see what is imprinted on motherboard what variant it says then fo from there. software and cases ar easy to edit. but not the imprinted model number on board.

Mine is a f500l but its a refurbished h811 however you cant flash any f500 rom on it because lgup thinks the phone is h815 to do so you first have to gain root then edit build.prop and replace any h815 u see to f500s and also replace the software version to version of the official kdz u downloaded after that u would be able to flash stock rom and gain your original phone's identity
But do not do this before disassembling and getting sure that its a f500s or you would probably brick your phone

@shamescool Even if I use LGUP tool,not ToT method do I need to edit build prop?
If yes then all editing need to be done within build prop only or more than that?
Sorry if I am being noob.

As raptor said disasembly is the only way if its working id leave it be the risk of hard brick is to great.

I am noob with this phone too its near a month its in my hand
no actually build prop way is the safest way another way which is extremely hard for noobs is to use hex editor and edit f500's kdz file and replace f500 with h815 and software version too
just like the build prop method
but the only problem with this is i dont know how to do so with hex editor
i myself tried the root method and it actually worked but kdz file editing is a hard approach if you cant gain root
ask other users and see what you can learn with hex editor and then tell me

Thanks @shamescool & everyone helped here.Certainly I saw on my motherboard it is F500L.So I just flashed the F500L ToT in dowload mode with respective DLL & it worked like a charm.My device now have a relevant rom.Later flashed Nougat too..

Glad to hear it
I recently found a way to trick LGUP with WinHex:
Just open the tot file in it and search for xVLG
then replace every f500 to your rom varient
Then i flashed f500l file on my phone which was successful and my phone bricked
Although everything except sd card works with ls991 qfil files but iam thinking if f500l's tot bricked my phone why the hell f500l is written on the main board
So im gonna try a ls991 tot file and see what happens...sd card is not really a big deal but why the hell the phone bricks??

@shamescool
Thanks & noted..
My phone firstly also got bricked when I used LGUP..Better use LG flash tool 1.8(ToT)flasher with proper DLL for F500L & flash it in download mode..As it had worked for me I hope yours will work to..
LGUP has so many bugs.There is a modified & fixed 8994.DLL which you can try with.Remind me if you need it.

It would be very good if you could provide me some links

@shamescool Use this tool in download mode
https://www.androidfilehost.com/?fid=24499762636004654 & this DLL https://mega.nz/#!pfZw3aAB!z1akOrEahn4iKBv9-R3hKN2O3vetzYfg2agcG_BrO-w.....
If you are using LGUP & getting error follow this method
https://www.lgdestek.net/lg-up-da-takili-kaliyor-hatasi-cozumu-31595/

@asingha94 can you please update the links and provide a link for tot file you used. It will be very helpful.
Thanks in advance

@ jatinder_anttal Sorry for late reply.I sold my G4 long ago.Now I am using G6.I don't have any link right now but you can get it from Google easily.

Sorry for late reply.I sold my G4 long ago.Now I am using G6.I don't have any link right now but you can get it from Google easily.