Develop Bugs

Install EUR on SEA G4

I have LG G4 815 SEA with 10b
Can install EUR firmware like 10c or 10d ?
Or should I wait for OTA update
Thanx

please any one can help?

I have the exact same concern as you, due to the 10C-SEA-XX has ****ty battery life (or maybe it's just the phone...?)
I think it should be fine, but i'm not using a PC right now so i can't go through with the KDZ flashing steps.

Yes, It can be
like me, H815T-HKG 10b can flash to H815-EUR 10c
but I show up a warning about the cust is not the correct region
I am going to find a way to fix it (cuz I saw some rom can remove the cust warning
and it lost my volte and 4G+ function

thanx all , i flashed 10d-OPT2 and it is great , finally my touch work fine

LG H815P FiX Can't find matched cust for NT-code mmc/mnc[], subset[]

Note : Do it at your own risk , i am not responsible to any damage you do to your device!!!!
with that being said let's cut to the chase
long story short i got a G4 H815p from South Africa about 3 days ago , it was running on lollipop and i decided to update it to Marshmallow , after reading few thread here on XDA i decided to flash a H815 KDZ seeing people in said thread said it was fine to do so ( and there was/isn't any Marshmallow kdz from South Africa ). I used LGUP and updated to marshmallow and once the device booted and was greeted with the error message Error current version is not available for user can't find matched cust for NT code .
At this point i must admit i was a little bit annoyed and i tried to find a way to get rid of that error message and unfortunately it looked like rooting ( which is not possible on the H815p cos of the lock bootloader) the device and deleting/editing the cust.prop file or finding a kdz that matched my regions were the only way out of my predicament. At that point i remembered facing the same issue some times back when i was using a G2 so with the help of XDA and Google i came up with a fix e for my Device but this Should also work on other H815p​
Before you proceed you check out this thread . it has info about LG G3 NT CODE and seems the G3 Code are about the same as the G4 ones
THE NT CODE YOU ARE GOING TO APPLY MUST MATCH YOUR KDZ REGION !!!!​
HTML:
http://forum.xda-developers.com/lg-g3/general/how-to-change-region-t2904951
step one
Know which region your Marshmallow kdz that you flashed is from ( in my case it is the Europe H81520C_00_1218.kdz , got it from http://storagecow.eu/index.php?dir=Xda/LG+G4/H815/Marshmallow+6.0/
step two
Enter LG G4 hidden menu using the correct code for your device . My device the code on marshmallow is *#546368#*815#*, i believe it is the same for all H815P got it from here http://forum.xda-developers.com/showpost.php?p=64142393&postcount=79
step 3
Apply code
enter hidden menu
navigate to SVC menu
Navigate to Version info
Navigate to NT Code , Make a backup of your current code and save it on your sd card just in case ( a screen shot will suffice ) and apply the code from you region , close then reboot your device and voila
Pictures s attached to the post to illustrate what was my NT Code before the fix and what it is after now after the fix​I tested the phone for 24 hours after applying the fix and everything work as it should , no network issues , calls, sms ,mms. wifi , bluetooth,Gps all work as they should
thanks to @YaDr , @JeremyChen

UP

Nice find
touns_j said:
UP
Click to expand...
Click to collapse
thanks i'm gonna use this one day. i reverted to LP after that annoying message and no root on MM. safe to say i will not buy a LG phone again as this locked bootloader crap has got me annoyed too.

anyone else tried this methond?

NTCODE WRITE ERROR - every time

Hi, NT WRITE CODE to me too, every time (rooted LG G4 815P). Any help? Thanks!

karoltom said:
NTCODE WRITE ERROR - every time
Click to expand...
Click to collapse
which device and firmware have you tried this on? i did this on my South African G4 H815P with the 20C European KDZ and till now i haven't encountered any issue ( i even went from the 20c kdz to the 20d kdz using LGUP and didn't have to do the whole process again)
vffzbr said:
Hi, NT WRITE CODE to me too, every time (rooted LG G4 815P). Any help? Thanks!
Click to expand...
Click to collapse
rooted G4 H815P ??? you don't need this process if you're rooted.. go to root folder , delete cust folder, reboot devices.

touns_j said:
which device and firmware have you tried this on? i did this on my South African G4 H815P with the 20C European KDZ and till now i haven't encountered any issue ( i even went from the 20c kdz to the 20d kdz using LGUP and didn't have to do the whole process again)
rooted G4 H815P ??? you don't need this process if you're rooted.. go to root folder , delete cust folder, reboot devices.
Click to expand...
Click to collapse
I did it also..just delete the cust folder. But if you choose like Genisys Rom you dont have that problem..

Many thanks. This method works for me. I've changed nt code from Poland P4 network provider to open Europe. Flashed V20D Firmware and everything works flawlessly .
Wysłane z mojego LG-H815 przy użyciu Tapatalka

I've managed to fix it with Root. No NT Code error and no carrier apps - http://forum.xda-developers.com/showpost.php?p=66957161&postcount=4

touns_j said:
which device and firmware have you tried this on? i did this on my South African G4 H815P with the 20C European KDZ and till now i haven't encountered any issue ( i even went from the 20c kdz to the 20d kdz using LGUP and didn't have to do the whole process again)
rooted G4 H815P ??? you don't need this process if you're rooted.. go to root folder , delete cust folder, reboot devices.
Click to expand...
Click to collapse
Thank you very much! Yes, I have a LG G4 (815P) rooted device, and after delete the cust folder, everything looks great now. My best regards :good:

Hi guys
Im quite new at this. But have flush a few phones in my time. 1st time to do a LG. I got a LG G4 H815tr. Want to change it to H815p. Reason is that most apps is in Turkey language. May i ask for afvise on this and how to change it. Many thanks guys

SN4K13 said:
Hi guys
Im quite new at this. But have flush a few phones in my time. 1st time to do a LG. I got a LG G4 H815tr. Want to change it to H815p. Reason is that most apps is in Turkey language. May i ask for afvise on this and how to change it. Many thanks guys
Click to expand...
Click to collapse
there's no way of "changing your H815tr into a H815p
' , what you can do it manually flash an unbranded H815

SN4K13 said:
Hi guys
Im quite new at this. But have flush a few phones in my time. 1st time to do a LG. I got a LG G4 H815tr. Want to change it to H815p. Reason is that most apps is in Turkey language. May i ask for afvise on this and how to change it. Many thanks guys
Click to expand...
Click to collapse
there's no way of "changing your H815tr into a H815p, what you can do it manually flash an unbranded H815 on your device using like the newly released 20h uk firmware here http://forum.xda-developers.com/g4/general/kdz-firmware-v20h-united-kingdom-2016-t3396480

help !
Region code that I can change for Global-ESA ? thank !

i have the same model Lg g4 H815p
h81510P_00 installed on it but when i upgrade it to MM
it shows the error even i can use my touch so i reset it and now i am stuck on the device setup after reset with the warning.
This is my current version installed on it H81520G_00
plese help me

Worked flawlessly on v29a H815, Applied NT code through hidden menu and "NT Code Write OK" Restated and voila..
Thanks.

I changed following in hidden menu NT Code, changed as below NT Codes with respect to firmware region... Rebooted after confirmation "NT Code Write OK" message.
V29a Firmware NT Code:
"1","FFF,FFF,FFFFFFFF,FFFFFFFF,11"
V20h Firmware NT Code:
"1","FFF,FFF,FFFFFFFF,FFFFFFFF,51"
Checked in both above firmwares..Worked flawlessly on my h818p...No more annoying message on every boot.
Software Version in about/ settings also changed to region exp. 20h-DS2-XX to 20h-ESA-XX upon reboot.
Is DS2 appears when cust mismatch...?

shahper1 said:
I changed following in hidden menu NT Code, changed as below NT Codes with respect to firmware region... Rebooted after confirmation "NT Code Write OK" message.
V29a Firmware NT Code:
"1","FFF,FFF,FFFFFFFF,FFFFFFFF,11"
V20h Firmware NT Code:
"1","FFF,FFF,FFFFFFFF,FFFFFFFF,51"
Checked in both above firmwares..Worked flawlessly on my h818p...No more annoying message on every boot.
Software Version in about/ settings also changed to region exp. 20h-DS2-XX to 20h-ESA-XX upon reboot.
Is DS2 appears when cust mismatch...?
Click to expand...
Click to collapse
How you could did it?
When I try to change NTCODE in Service Menu, I always get "NTCODE WRITE ERROR" message. Is your bootloader unlocked?

Whats the firmware ver. you are trying this on..?

LG G4 signal issues after update

hello xda,
i bought (from ebay) an LG g4 h815t from hong kong. it come with android 5 pre-installed and everything works fine.
i decidet to update the phone to mm (via lg bridge) and now the signal is very very poor (alomost without coverage for all day)
Any idea?
thank you very much

Go back to LP since u cant flash modems via twrp since ur g4s bootloader is locked ..
Use lgup refurbish downlod the kdz the file search here on xda

jinderation said:
Go back to LP since u cant flash modems via twrp since ur g4s bootloader is locked ..
Use lgup refurbish downlod the kdz the file search here on xda
Click to expand...
Click to collapse
i'll try, thank you

LG G4 has different model numbers, cant find stock firmware.

Hello i need help with my LG G4. Am trying to find the offical firmware but i have failed.
The phone model number in the settings says H818, the back sticker under the battery say H815 and the model number on the mother board says F500L.
Before it had lollipop and was working well so i tried to upgrade to 6.0 and thats when issues sarted. After upgrade it works but the network is not working.
I tried to use the LG Bridge to get the firmware and it got me F500K so when i tried to install it failed.
I have tried to install several firmwares using the LGUP but all fail bringing me an error of kdz is invalid.
I have tried the LG Flash Tool and it have failed too.
Can anyone hlep me find the stock firmware for this phone.

Check your box
Sent from my SM-G610F using Tapatalk

I bought the phone from a friend so it has no box

If it's a single SIM and not from America, probably H815.
Sent from my SM-G610F using Tapatalk

Power off take the back off pull the battery out there is a sticker that will have the imei number that is we're you will also find the model of your device.

Its i single sim. Back sticker says h815, setthings say h818 and mother board says f500l

sharpnic35 said:
Its i single sim. Back sticker says h815, setthings say h818 and mother board says f500l
Click to expand...
Click to collapse
If motherboard says F500l then it's a F500l
Sent from my iPhone using Tapatalk

sharpnic35 said:
Hello i need help with my LG G4. Am trying to find the offical firmware but i have failed.
The phone model number in the settings says H818, the back sticker under the battery say H815 and the model number on the mother board says F500L.
Before it had lollipop and was working well so i tried to upgrade to 6.0 and thats when issues sarted. After upgrade it works but the network is not working.
I tried to use the LG Bridge to get the firmware and it got me F500K so when i tried to install it failed.
I have tried to install several firmwares using the LGUP but all fail bringing me an error of kdz is invalid.
I have tried the LG Flash Tool and it have failed too.
Can anyone hlep me find the stock firmware for this phone.
Click to expand...
Click to collapse
franken phone.. mean phone refurbished by other variant parts.. even they can edit software .. best thing to do is... open up phone and look at the motherboard model.. what ever the motherboard says thats your variant.. you have to phisically see it with your own eyes.. not by looking in software they also edit that..

Wen i checked the mother board, thr was F100L MAIN

sharpnic35 said:
Hello i need help with my LG G4. Am trying to find the offical firmware but i have failed.
The phone model number in the settings says H818, the back sticker under the battery say H815 and the model number on the mother board says F500L.
Before it had lollipop and was working well so i tried to upgrade to 6.0 and thats when issues sarted. After upgrade it works but the network is not working.
I tried to use the LG Bridge to get the firmware and it got me F500K so when i tried to install it failed.
I have tried to install several firmwares using the LGUP but all fail bringing me an error of kdz is invalid.
I have tried the LG Flash Tool and it have failed too.
Can anyone hlep me find the stock firmware for this phone.
Click to expand...
Click to collapse
The board version is F500L. But the software is of H818. Therefore flash tools would see the phone as H818 and generate invalid file error for any firmware other than H818. So you can recover it installing different firmwares of H818.
You can get its LP 10e here and 10b here.
By the way, how did you upgrade from LP to MM? Means using which tool?

[UsU]Dealing with a Frankenstein H810 device

As you have read in the FAQ sometimes when you send your phone away to be repaired (under warranty in my case) you may get your phone back where what is flashed on it does not match the actual hardware. In my case the motherboard was an H810 and the software claimed it was an H812, even SALT thought it was an H812.
Well the good news is just flash on what your motherboard says it is. In my case the H810 unlock and roms both work great. Everything except for the flashlight works but that is a known problem with the LineageOS 15.1 rom as of writing this. The phone has been in use for over a week with no freakouts, reboots, excessive battery drain, overheating or otherwise.
REMEMBER! caveat emptor, this worked for me and might not for you!
TL;DR you should disassemble your phone and make sure the hardware matches up to what you are using to root it with. And also make damn sure you carrier unlock it first before flashing on a custom rom. The custom roms will not carrier unlock your phone and in my case claim to be successful and fail silently.
One additional thing to note here, I do not know if this was incorrectly flashed by the tech or if putting on the H812 rom was intentional. I did not use the stock phone whatsoever so I do not know if all the hardware (calls/camera/flashlight/etc) even worked properly.
@steadfasterX per request.

Hi, I too have a frankenstein h810 device, but I only realized it after I unlocked flashed a custom rom and everything. I bricked the phone, but I'm using the sd card unbrick method to run the phone. With that said, you mentioned to use h810 files and everything should work fine. I've tried that, but with little success. Either there would be no sound or LTE or no video. I'm currently running h812 roms/modems and my lte does not work and my battery performance is less than stellar.
My question is, what are the current builds of the files are you using? Also, what can I do to unlock my phone? I got the code, but it does not work and you mentioned that its best to unlock the phone before installing custom roms.
One last tidbit, when I go into download mode and try to use LGUP to unbrick the phone, it says my device model is unknown. Is this something to do with the frankenstein motherboard?
Thank you

I have a 810 board flashed with 811 software
Currently using resurrection remix

deltadiesel said:
I have a 810 board flashed with 811 software
Currently using resurrection remix
Click to expand...
Click to collapse
Is that with 811 modem as well as kernel and USU unlock?

Hotdogint said:
Is that with 811 modem as well as kernel and USU unlock?
Click to expand...
Click to collapse
811 modem and kernel
Regular unlock. It came branded as a 811 even though motherboard us 810

deltadiesel said:
811 modem and kernel
Regular unlock. It came branded as a 811 even though motherboard us 810
Click to expand...
Click to collapse
Would you be able to provide a link to those files? SteadfasterX's download server does not seem to have them.
Thank you for your help

Hotdogint said:
Would you be able to provide a link to those files? SteadfasterX's download server does not seem to have them.
Thank you for your help
Click to expand...
Click to collapse
You mean 20v T-Mobile 811. Kdz ?

deltadiesel said:
You mean 20v T-Mobile 811. Kdz ?
Click to expand...
Click to collapse
Is that where you got the files? Then I can just extract them from a stock KDZ from the internet myself. I'm wondering if there is anything I can do to unbrick my phone. LGUP cannot recognize my phone model while it is in download mode. Even salt is all over the place with its information. I bricked the phone a while back so I forgot exactly how I did it in the first place.

Hotdogint said:
Is that where you got the files? Then I can just extract them from a stock KDZ from the internet myself. I'm wondering if there is anything I can do to unbrick my phone. LGUP cannot recognize my phone model while it is in download mode. Even salt is all over the place with its information. I bricked the phone a while back so I forgot exactly how I did it in the first place.
Click to expand...
Click to collapse
Sorry I thought you could flash kez with LGUP. If your phone isn't being recognized in download mode I'd contact steadfasterx for a solution
I'm not sure what to do in that situation

deltadiesel said:
Sorry I thought you could flash kez with LGUP. If your phone isn't being recognized in download mode I'd contact steadfasterx for a solution
I'm not sure what to do in that situation
Click to expand...
Click to collapse
Ok, I managed to get LGUP running with an edit to the build.prop of the device. LGUP says the phone version is H81220x. I checked the motherboard and it is the same model as baconbacon's LGG4, h810. What are my choices on flashing a proper KDZ? I've read certain things about ARB, but I'm not 100% sure how it works. Looking at the LGUP tool, it wants to select a .tot file. Any suggestions?

Hotdogint said:
Ok, I managed to get LGUP running with an edit to the build.prop of the device. LGUP says the phone version is H81220x. I checked the motherboard and it is the same model as baconbacon's LGG4, h810. What are my choices on flashing a proper KDZ? I've read certain things about ARB, but I'm not 100% sure how it works. Looking at the LGUP tool, it wants to select a .tot file. Any suggestions?
Click to expand...
Click to collapse
When your phone was working properly what software did it come with 810? 812,?

deltadiesel said:
When your phone was working properly what software did it come with 810? 812,?
Click to expand...
Click to collapse
It was running 812 software.

Hotdogint said:
It was running 812 software.
Click to expand...
Click to collapse
You should be able to.flash 812 software on it then. Google 20v kdz for 812 and flash it with lg up. If .kdz extension isn't available select refurbish....it can be tricky but eventually it will give you option to flash kdz
My phone is a 810 with 811 software. So when I used lg up I flashed it back to 811

deltadiesel said:
You should be able to.flash 812 software on it then. Google 20v kdz for 812 and flash it with lg up. If .kdz extension isn't available select refurbish....it can be tricky but eventually it will give you option to flash kdz
My phone is a 810 with 811 software. So when I used lg up I flashed it back to 811
Click to expand...
Click to collapse
Should I do 20z? Apparently 20z is for Rogers, which is the carrier the device is with.

Hotdogint said:
Should I do 20z? Apparently 20z is for Rogers, which is the carrier the device is with.
Click to expand...
Click to collapse
Yes that will work

deltadiesel said:
Yes that will work
Click to expand...
Click to collapse
And from there I can flash the RR rom then 29a modem, h812 baseband and I should be gravy?

Hotdogint said:
And from there I can flash the RR rom then 29a modem, h812 baseband and I should be gravy?
Click to expand...
Click to collapse
Yes from there you will need to install twrp custom recovery followed by ROM.of your choice.
Go ahead and flask the 20z 812 kdz first. See how it goes

deltadiesel said:
Yes from there you will need to install twrp custom recovery followed by ROM.of your choice.
Go ahead and flask the 20z 812 kdz first. See how it goes
Click to expand...
Click to collapse
Flashed the phone and LGUP says it was rebooting the phone but it never did. Now nothing comes up, not even when the sd card is installed. The only feedback I get from the phone is when it initially opened it vibrates, but no screen nor recognized in windows.

Hotdogint said:
Flashed the phone and LGUP says it was rebooting the phone but it never did. Now nothing comes up, not even when the sd card is installed. The only feedback I get from the phone is when it initially opened it vibrates, but no screen nor recognized in windows.
Click to expand...
Click to collapse
Are you able to go back to download mode?

deltadiesel said:
Are you able to go back to download mode?
Click to expand...
Click to collapse
Nope