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 fixI 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..?
long time lurker here.I bought a g4 second hand.it was advertised as h815 unlocked.the imei checked out online and all stickers said 815 as well.but in hardware info it showed h815T(HK variant).thankfully i knew how to flash firmwares so i downloaded a KDZ and flashed it with lg ft 2014.for some reason (i dont remember why) i flashed 2-3 times with other kdzs and ended up in the current state.the phone now shows H818(dual sim variant) in hardware info and doesnt
detect my sim card(same sim works fine in my G2).I never downloaded the h818 kdz.
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||((TLDR))||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
phone shows wrong model in settings and doesnt detect sim card.flashing stock kdz doesnt fix this
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any help would be appreciated as i have been flashing various KDZs since the last 2 months but have had no luck yet.
ps.
i am able to root using system.img injection method if root is required
nizamelahi said:
long time lurker here.I bought a g4 second hand.it was advertised as h815 unlocked.the imei checked out online and all stickers said 815 as well.but in hardware info it showed h815T(HK variant).thankfully i knew how to flash firmwares so i downloaded a KDZ and flashed it with lg ft 2014.for some reason (i dont remember why) i flashed 2-3 times with other kdzs and ended up in the current state.the phone now shows H818(dual sim variant) in hardware info and doesnt
detect my sim card(same sim works fine in my G2).I never downloaded the h818 kdz.
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||((TLDR))||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
phone shows wrong model in settings and doesnt detect sim card.flashing stock kdz doesnt fix this
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
any help would be appreciated as i have been flashing various KDZs since the last 2 months but have had no luck yet.
ps.
i am able to root using system.img injection method if root is required
Click to expand...
Click to collapse
i think is was misinterpreted. its a h815 but a h815t indeed and unlocked mean carrier as you know theres no way to unlock bootloader.. you need to flash the h815T KDZ. i hope that you didnt mess your imei.
inject only works in LP not on MM. also youll need to find out if you can downgrade to lollipop. as this phone have antirollback wich means once you are on a version you cannot go nack or youll hard brick phone.
raptorddd said:
i think is was misinterpreted. its a h815 but a h815t indeed and unlocked mean carrier as you know theres no way to unlock bootloader.. you need to flash the h815T KDZ. i hope that you didnt mess your imei.
inject only works in LP not on MM. also youll need to find out if you can downgrade to lollipop. as this phone have antirollback wich means once you are on a version you cannot go nack or youll hard brick phone.
Click to expand...
Click to collapse
thank you for the response.im on lollipop right now since ft 2014 doesnt flash MM and lgup and ft 2.0.1.6 stop flashing after checking phone info(they stop flashing as phone shows h818 but kdz is for h815).I flashed h815T kdz multiple times(twice just today)but phone still shows h818 in lgup and in settings.the phone cant be h818 as it only has 1 sim slot.
imei is ok right now.SIM issue happened to be a ****ty sim cut job by the customer service guy.only remaining issue is the wrong version showing up in phone settings. cant flash MM due to that.
also,is there anything good about upgrading to MM???
nizamelahi said:
thank you for the response.im on lollipop right now since ft 2014 doesnt flash MM and lgup and ft 2.0.1.6 stop flashing after checking phone info(they stop flashing as phone shows h818 but kdz is for h815).I flashed h815T kdz multiple times(twice just today)but phone still shows h818 in lgup and in settings.the phone cant be h818 as it only has 1 sim slot.
imei is ok right now.SIM issue happened to be a ****ty sim cut job by the customer service guy.only remaining issue is the wrong version showing up in phone settings. cant flash MM due to that.
also,is there anything good about upgrading to MM???
Click to expand...
Click to collapse
Actually MM isnt an upgrade. Lollipop is best(maybe nougat will be worth anything). I think you should flash uk v20g kdz with lg up(or LG firware flash 2014). I suggest using LG UP also you can give TOT method a try
check this thread:
https://forum.xda-developers.com/g4/general/guide-lg-g4-stock-firmware-to-stock-kdz-t3107848
reply to me if you will need any help
Minto107 said:
Actually MM isnt an upgrade. Lollipop is best(maybe nougat will be worth anything). I think you should flash uk v20g kdz with lg up(or LG firware flash 2014). I suggest using LG UP also you can give TOT method a try
check this thread:
https://forum.xda-developers.com/g4/general/guide-lg-g4-stock-firmware-to-stock-kdz-t3107848
reply to me if you will need any help
Click to expand...
Click to collapse
cant flash tot as lgup and ft 2.0.1.6 check phone version....
no MM for me then...lets just wait for nougat
the only issue left now is no network reception
nizamelahi said:
cant flash tot as lgup and ft 2.0.1.6 check phone version....
no MM for me then...lets just wait for nougat
the only issue left now is no network reception
Click to expand...
Click to collapse
Do they check in build.prop? If so just change build.prop value and you're good to go. I think that there is also possibility to fake your software version and then flash anything you want
Wysłane z mojego LG-H815 przy użyciu Tapatalka
I have a phone which I bought from a used market, it's rooted and it has Verizon VS986 rom installed on it but when I take of battery it has H811 sticker. I am confused as I was expecting VS986 on the back of the mobile. So now I am wondering if someone has flashed the wrong KDZ on the phone? because with this rom I can't get this bootloader to unlock and now if I use LGUP or Bridge it doesn't flash the H811 kdz ... any ideas? have been searching for two days now.
Batteries from other LG G4s can be used. The sticker wouldn't matter. Only 5.1 can be rooted
If it is vs986 it can't have the bootloader unlocked.
This is the problem, my hardware info shows it's vs986 but sticker on back says h811. Also in software info it shows modified.
Its rooted but bootloader is blocked, can I flash international kdz ?
If yes how? Coz I tried using LG up it doesn't work.
Did you download the LGUP with the new DLL file? (on my phone and will post link soon). Does anywhere on the phones back cover in or out say that model? Where'd you get that phone from?
Link
i downloaded steadfasterx's G4 Nougat rom, after that, my phone couldn't read SIM card. my phone's software is changed from F500 to H815. so i want to go back to F500. but this is UsU unlock, flashing kdz will hard brick my device. so the question is:I want to convert kdz to zip without bootloader and recovery(just like steadfasterx's Nougat rom but the firmware is F500K Nougat) so how can i do it that?
Update: Here is what SALT gives me. https://i.imgur.com/Np6roET.png
Can someone give me some steps, which firmware to flash and how to do it with SALT
Today I bought used LG G4 with secure booting error 1003 and I though I could flash stock and get a nice phone.
The sticker under the battery says H815 and the IMEI number checks out as F500S but when I looked inside, the motherboard name was F500L Main.
The phone shows up as H815 with H81510H version. I tried LG Bridge too it showed up as F500S but it didn't want to update it after it downloaded the firmware....
Download mode works but recovery doesn't work. I tried vol. down and usb and it boots up in fastboot mode with scares information nothing much some key parts are empty but it says that the secure boot is off.
I tried latest OPEN H815 6.0.1 kdz, but I get the error 0x2000 at 9% something about trying to flash smaller ARB version. I even tried F500L TOT with LG UP and flash tool but then I get an error "invalid tot" I even tried hex editing the TOT file I changed one line from F500L to H815 but I get the same invalid Tot file. Maybe I missed some other part of the tot file..
My only option left is to get into linux and use SALT but I have no idea what to do with it. I know that I can get some information and even extract system into kdz right?
Let me know if there is fix like some DLL for flashing the F500L TOT file...
twrp
Since its UsU i was able to boot into twrp. What rom should I install now? the GPT in SALT says H811 and my board is f500 (L) It had h815:laugh:
serifpersia said:
Since its UsU i was able to boot into twrp. What rom should I install now? the GPT in SALT says H811 and my board is f500 (L) It had h815:laugh:
Click to expand...
Click to collapse
What about reading the UsU thread??? There is a even a faq.. Whatever you do never flash anything which has an ARB higher then 0.
Sent from my OnePlus 7T Pro using XDA Labs
steadfasterX said:
What about reading the UsU thread??? There is a even a faq.. Whatever you do never flash anything which has an ARB higher then 0.
Click to expand...
Click to collapse
I finally fixed it.
I tried FWUL but when I had to update SALT to get ARB from kdz it had some python3 crypto module missing and I wasn't able to make it work. So I used my Lubuntu and I installed everything needed and Salt was running fully updated.
I extracted the latest MM kdz for F500L and using fastboot I flashed the MM bootstack and boot system modem(once) and the phone started to boot up to the korean android is updating screen. It bootlooped with error 1009. I assumed that the battery was working fine but nope it was totally dead.
With the charger the phone booted up and everything works even Cellular Network.
Your SALT tool saved my ass man