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
Related
I have a lg g4 h812 and its unlock and on T-mobile now. Since it looks like the h811 and h812 have same hardware could I flash h811 firmware onto my h812?
you could always try to flash the first revision of the 811 firmware that is below 10H, i've tried on mine and got me into HardBrick. Got repaired for free.
xavierlangevin1 said:
you could always try to flash the first revision of the 811 firmware that is below 10H, i've tried on mine and got me into HardBrick. Got repaired for free.
Click to expand...
Click to collapse
What version did you flash that caused the hardbrick?
From my understanding you should never cross flash models. Some g4 varients could be differ. But rule of thumb never do it unless confirmed to work
I've successfully flash a 815 & 818 into my 812, but we have to reflash the modem file of the 812 original firmware to be able to obtain network (wifi work but quite laggy).
The 81110H is the firmware that i've tried to install (Phone wont reboot after upgrade and show off like 9008 device) . i don't know if we could modify a kdz for being able to inject directly the modem of the 812 into 815 rom...
Yes you can
I've made this tutorial but you have to change some thinks to use in your variant
PS: you will get some problems with your modem (dont work)
If you found how to get working
Please share
http://forum.xda-developers.com/att-g4/general/how-to-install-cyanogenmod-h810-t3388019
Wjbr1993 said:
Yes you can
I've made this tutorial but you have to change some thinks to use in your variant
PS: you will get some problems with your modem (dont work)
If you found how to get working
Please share
http://forum.xda-developers.com/att-g4/general/how-to-install-cyanogenmod-h810-t3388019
Click to expand...
Click to collapse
Which variant your using ? i wanna test to install the system.img partition into anyother variant that cannot be officially unlocked and try it. *i've get access to g4 812 bootloader with flashing a 815 firmware but can't unlock it...
xavierlangevin1 said:
Which variant your using ? i wanna test to install the system.img partition into anyother variant that cannot be officially unlocked and try it. *i've get access to g4 812 bootloader with flashing a 815 firmware but can't unlock it...
Click to expand...
Click to collapse
Im using a H810 (AT&T) variant
I install a H811 kdz on it
It works perfect but i cant get signal
And yes i can unlock the bootloader with this kdz (H811)
So you tried it ? to unlock ?
Wjbr1993 said:
Yes you can
I've made this tutorial but you have to change some thinks to use in your variant
PS: you will get some problems with your modem (dont work)
If you found how to get working
Please share
http://forum.xda-developers.com/att-g4/general/how-to-install-cyanogenmod-h810-t3388019
Click to expand...
Click to collapse
Can someone could try this with a 815, or any other model than 810 ?
---------- Post added at 06:36 PM ---------- Previous post was at 06:08 PM ----------
iljalways said:
I have a lg g4 h812 and its unlock and on T-mobile now. Since it looks like the h811 and h812 have same hardware could I flash h811 firmware onto my h812?
Click to expand...
Click to collapse
You could try the method of this guy but i can't tell if you will get a hardbrick...
xavierlangevin1 said:
Can someone could try this with a 815, or any other model than 810 ?
---------- Post added at 06:36 PM ---------- Previous post was at 06:08 PM ----------
You could try the method of this guy but i can't tell if you will get a hardbrick...
Click to expand...
Click to collapse
Here it is
I based my tutorial in another one
http://forum.xda-developers.com/g4/general/lg-g4-f500l-restore-signal-flash-815-t3214574
i've seen it before but flashing the 811 kdz give me a hardbrick. If i flash 810 then 811 that could work but cannot try it right now.
xavierlangevin1 said:
i've seen it before but flashing the 811 kdz give me a hardbrick. If i flash 810 then 811 that could work but cannot try it right now.
Click to expand...
Click to collapse
DONT flash a 810 kdz
Just use some steps from my tutorial but using files for your variant
Wjbr1993 said:
DONT flash a 810 kdz
Just use some steps from my tutorial but using files for your variant
Click to expand...
Click to collapse
With the 812 we can't directly flash a 811, without causing a hardbrick. I was only wondering if i could flash a 810 successfully a 811 wont be a problem
xavierlangevin1 said:
With the 812 we can't directly flash a 811, without causing a hardbrick. I was only wondering if i could flash a 810 successfully a 811 wont be a problem
Click to expand...
Click to collapse
Aaah
Yes you can
But you have to flash first with lg flash tool 2014 (flash others kdz without problem)
And then with LG UP
xavierlangevin1 said:
I've successfully flash a 815 & 818 into my 812, but we have to reflash the modem file of the 812 original firmware to be able to obtain network (wifi work but quite laggy).
The 81110H is the firmware that i've tried to install (Phone wont reboot after upgrade and show off like 9008 device) . i don't know if we could modify a kdz for being able to inject directly the modem of the 812 into 815 rom...
Click to expand...
Click to collapse
Hello friend,
I am also thinking of flashing H815(international) rom onto my H812(Canadian) hardware. If you don't mind, could you please tell me how did the phone function with the H815 firmware?
Thank you very much. Your help is greatly appreciated.
BIG_BADASS said:
Hello friend,
I am also thinking of flashing H815(international) rom onto my H812(Canadian) hardware. If you don't mind, could you please tell me how did the phone function with the H815 firmware?
Thank you very much. Your help is greatly appreciated.
Click to expand...
Click to collapse
you cannot use it for daily usage, the mobile network doesn't work and the phone will randomly reboot sometimes.
xavierlangevin1 said:
you cannot use it for daily usage, the mobile network doesn't work and the phone will randomly reboot sometimes.
Click to expand...
Click to collapse
Ok thanks, I'm asking because I'm going on a long trip to UK and the Middle East for 6 or 7 months , and thought flashing the H815 firmware would make it compatible with those networks and therefore a free solution, rather than paying to have it unlocked.
Thanks
xavierlangevin1 said:
you cannot use it for daily usage, the mobile network doesn't work and the phone will randomly reboot sometimes.
Click to expand...
Click to collapse
So by default, H812 has a locked bootloader. But despite this, the flashing of H815 firmware still worked?
If you read carefully all posts in most of the cited "how-to's" ...
If you read carefully all posts in most of the cited "how-to's" that have been linked in the responses you've gotten to date ... you will note that many problems are encountered, ranging anywhere from hard bricks down. Simply not worth the risk, IMO as there is not a high enough probability that you can get back to what you had originally that was working in the first place.
S.
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
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
Helle everyone, I recently purchased an LG G4 H815 running MM from eBay, it is supposed to be INTERNATIONAL VERSION, but I had noticed first that Android PAY does not work (when I try to launch the app it does not let me in and says that I am running a custom ROM or I have a rooted phone or unlocked bootloader) which none I personally did. Then I tried to verify my anti-rollback version because I couldn't update to Nougat, the HIDDEN MENU code supposed to work for my model H815 didn't work, but instead, the code related to the American versions (ATT and T-Mo) WORKED, AND MY DEVICE HAS anti-rollback version = 4 !!!! as far as I know, the most recent one is 3, how is that even possible??? (see Pictures for more infos)
( Unfortunately I couldn't figure out a way to upload pictures here so here is a link to Imgur)
imgur (.) com/a/bPSk3
Thanks for any further help or infos.
DjMaxTn said:
Helle everyone, I recently purchased an LG G4 H815 running MM from eBay, it is supposed to be INTERNATIONAL VERSION, but I had noticed first that Android PAY does not work (when I try to launch the app it does not let me in and says that I am running a custom ROM or I have a rooted phone or unlocked bootloader) which none I personally did. Then I tried to verify my anti-rollback version because I couldn't update to Nougat, the HIDDEN MENU code supposed to work for my model H815 didn't work, but instead, the code related to the American versions (ATT and T-Mo) WORKED, AND MY DEVICE HAS anti-rollback version = 4 !!!! as far as I know, the most recent one is 3, how is that even possible??? (see Pictures for more infos)
( Unfortunately I couldn't figure out a way to upload pictures here so here is a link to Imgur)
imgur (.) com/a/bPSk3
Thanks for any further help or infos.
Click to expand...
Click to collapse
There are many Frankenstein devices out there.. One thing is 100%: you have a refurbished device. So it's definitively NOT a pure h815.
H815 devices have no ARB!
Please make a backup of your device with SALT ( https://bit.do/SALTatXDA ) - basic is fine. And share the resulting files i.e. via Google drive.
Having that backup is crucial important regardless. And I want to take a look into your bootloader stack to find out which one is installed.
Sent from my LG-H815 using XDA Labs
steadfasterX said:
There are many Frankenstein devices out there.. One thing is 100%: you have a refurbished device. So it's definitively NOT a pure h815.
H815 devices have no ARB!
Please make a backup of your device with SALT ( ) - basic is fine. And share the resulting files i.e. via Google drive.
Having that backup is crucial important regardless. And I want to take a look into your bootloader stack to find out which one is installed.
Sent from my LG-H815 using XDA Labs
Click to expand...
Click to collapse
Thanks for the reply man, i really appreciate it.
1/ Yes it is a refurbished device
2/ I think it is Sprint version LS991 (according to the ABR - Sprint is the only version that has version 4)
3/ I checked the IMEI online and it confirms that it is a SPRINT device
3/ I found online that there is some CUSTOM ROMs that "converts" literally any version to H815 (mine shows 4g LTE logo when I am using ONLY 3G WCDMA in settings)
How to retreive the bootloader stack info in order to share it here for you to take a look ?
I am now trying to install SALT in LINUX - I will keep you up-to-date
DjMaxTn said:
Thanks for the reply man, i really appreciate it.
1/ Yes it is a refurbished device
2/ I think it is Sprint version LS991 (according to the ABR - Sprint is the only version that has version 4)
3/ I checked the IMEI online and it confirms that it is a SPRINT device
3/ I found online that there is some CUSTOM ROMs that "converts" literally any version to H815 (mine shows 4g LTE logo when I am using ONLY 3G WCDMA in settings)
How to retreive the bootloader stack info in order to share it here for you to take a look ?
I am now trying to install SALT in LINUX - I will keep you up-to-date
Click to expand...
Click to collapse
Making a backup with SALT will also get the bootloader stack. Just share the files afterwards.
Sent from my LG-H815 using XDA Labs
steadfasterX said:
Making a backup with SALT will also get the bootloader stack. Just share the files afterwards.
Sent from my LG-H815 using XDA Labs
Click to expand...
Click to collapse
So i installed SALT successfully, put the device is download mode, but SALT does not detect it!!
It throws an ERROR NO DEVICE CONNECTED (see picture)
imgur.com/a/syp7V
steadfasterX said:
Making a backup with SALT will also get the bootloader stack. Just share the files afterwards.
Sent from my LG-H815 using XDA Labs
Click to expand...
Click to collapse
Finally got it working here is the screenshot imgur.com/a/Kf5xI
And here are the files retrieved using SALT https://goo.gl/ch2FHr
DjMaxTn said:
Finally got it working here is the screenshot imgur.com/a/Kf5xI
And here are the files retrieved using SALT https://goo.gl/ch2FHr
Click to expand...
Click to collapse
Pls paste the SALT debug log in advanced menu as well. It's enough directly when started SALT with the device connected.
Many thx
Nvm got it. The important stuff is in your screenshot.
You have a converted device. Meaning you have the ls991 bootloader stack plus the h815 system. This is possible but more interesting would be: is your SIM working? Do you get mobile Internet? 3g,4g?
Sent from my LG-H815 using XDA Labs
steadfasterX said:
Pls paste the SALT debug log in the advanced menu as well. It's enough directly when started SALT with the device connected.
Many Thx
Nvm got it. The important stuff is in your screenshot.
You have a converted device. Meaning you have the ls991 bootloader stack plus the h815 system. This is possible but more interesting would be: is your SIM working? Do you get mobile Internet? 3g,4g?
Sent from my LG-H815 using XDA Labs
Click to expand...
Click to collapse
Many thanks for reply, yes everything works fine (Android Pay does not work), DATA works fine BUT even using ONLY GSM/3G WCDMA (no LTE) in the settings, I always see the 4g LTE logo when using DATA, I think they somehow changed/ replaced the 3g data logo in the status bar with 4g LTE logo, in order to make the user believe the device is compatible with his LTE carrier frequency (which is not correct of course)
This SPRINT device does not support LTE in the country I am using it in (Czech Republic), I verified it with the help of willlmyphonework.com website.
This is really so disgusting and unfaithful behaviour from SOME Chinese sellers on eBay, the SPRINT version is the cheapest one, so in order to RIP off customers, they CONVERT these models to H815 in order to sell them for more, and not everyone would have the knowledge to dig deep into the device info in order to verify the legitimacy of their product specs, this is sad...
Anyway, what should I do now which this devise? how can I at least install Nougat or have the OFFICIAL firmware without breaking the device??
Thanks for your time and precious information
DjMaxTn said:
Many thanks for reply, yes everything works fine (Android Pay does not work), DATA works fine BUT even using ONLY GSM/3G WCDMA (no LTE) in the settings, I always see the 4g LTE logo when using DATA, I think they somehow changed/ replaced the 3g data logo in the status bar with 4g LTE logo, in order to make the user believe the device is compatible with his LTE carrier frequency (which is not correct of course)
This SPRINT device does not support LTE in the country I am using it in (Czech Republic), I verified it with the help of willlmyphonework.com website.
This is really so disgusting and unfaithful behaviour from SOME Chinese sellers on eBay, the SPRINT version is the cheapest one, so in order to RIP off customers, they CONVERT these models to H815 in order to sell them for more, and not everyone would have the knowledge to dig deep into the device info in order to verify the legitimacy of their product specs, this is sad...
Anyway, what should I do now which this devise? how can I at least install Nougat or have the OFFICIAL firmware without breaking the device??
Thanks for your time and precious information
Click to expand...
Click to collapse
Well.. We don't know if it is a ls991 or a h815 or a complete other device. The only way to say this for sure is to open the device and looking on the mainboard(!). But regardless you have a fusing device now and so you cannot install a h815 bootloader stack anymore. Say thx to ARB ( https://bit.do/antirollg4 ) which can hard brick your device.
It SEEMS that you can boot h815 ROMs but if you try to replace the bootloader stack coming with the N zip or the TOT (which you can find here on XDA) it will hard brick.
Interesting is that h815 is able to boot. It MAY be possible to boot N by just replacing modem, system and boot partition though. That depends on your bootloader stack.
Try to boot into fastboot from android:
adb reboot bootloader
You should see the fastboot screen. Could you make a photo of that? We MAY have luck and its a special one.
Sent from my LG-H815 using XDA Labs
steadfasterX said:
Well.. We don't know if it is a ls991 or a h815 or a complete other device. The only way to say this for sure is to open the device and looking on the mainboard(!). But regardless you have a fusing device now and so you cannot install a h815 bootloader stack anymore. Say thx to ARB ( https://bit.do/antirollg4 ) which can hard brick your device.
It SEEMS that you can boot h815 ROMs but if you try to replace the bootloader stack coming with the N zip or the TOT (which you can find here on XDA) it will hard brick.
Interesting is that h815 is able to boot. It MAY be possible to boot N by just replacing modem, system and boot partition though. That depends on your bootloader stack.
Try to boot into fastboot from android:
adb reboot bootloader
You should see the fastboot screen. Could you make a photo of that? We MAY have luck and its a special one.
Sent from my LG-H815 using XDA Labs
Click to expand...
Click to collapse
Unfortunately this command adb reboot bootloader just reboots the phone normally to android ( normal reboot)
I couldnt boot into fastboot because the Send command returns FAIL when I type id (so i cant move on in the process ...) Maybe locked bootloader??
DjMaxTn said:
Unfortunately this command adb reboot bootloader just reboots the phone normally to android ( normal reboot)
I could it boot into fastboot because the Send command returns FAIL when I type id (so i cant move on in the process ...) Maybe locked bootloader??
Click to expand...
Click to collapse
Too bad. Try that :
Power off phone
Press vol down and keep it pressed
While doing so plugin the USB cable and wait
You may see fastboot now.
Sent from my LG-H815 using XDA Labs
steadfasterX said:
Too bad. Try that :
Power off phone
Press vol down and keep it pressed
While doing so plugin the USB cable and wait
You may see fastboot now.
Sent from my LG-H815 using XDA Labs
Click to expand...
Click to collapse
No luck, the phone starts to charge while turned off and connected to the computer, there is something really strange going on here, it is like this mode had been blocked or something....
DjMaxTn said:
No luck, the phone starts to charge while turned off and connected to the computer, there is something really strange going on here, it is like this mode had been blocked or something....
Click to expand...
Click to collapse
Well no. Some firmwares do not allow to boot into fastboot that's not that unlikely.
So what I can say is that you have a ls991 bootloader stack with a h815 system so it MAY be possible to install nougat but not yet. I will integrate flashing partitions to SALT soon. Until then you have to wait.
Sent from my LG-H815 using XDA Labs
steadfasterX said:
Well no. Some firmwares do not allow to boot into fastboot that's not that unlikely.
So what I can say is that you have a ls991 bootloader stack with a h815 system so it MAY be possible to install nougat but not yet. I will integrate flashing partitions to SALT soon. Until then you have to wait.
Sent from my LG-H815 using XDA Labs
Click to expand...
Click to collapse
Has the flashing per folder been implemented? I think I may have the same problem with the OP. AT&T device with H815 system and ARB 3.
tjlabais said:
Has the flashing per folder been implemented? I think I may have the same problem with the OP. AT&T device with H815 system and ARB 3.
Click to expand...
Click to collapse
read the SALT thread. I provide changelogs for every release.
flashing is possible even now in a beta state. waiting on IRC (read the SALT thread - OP) is the only way if you want to participate on the beta test.
.
steadfasterX said:
read the SALT thread. I provide changelogs for every release.
flashing is possible even now in a beta state. waiting on IRC (read the SALT thread - OP) is the only way if you want to participate on the beta test.
.
Click to expand...
Click to collapse
Hello! I have similar situation I have H815 ... but LGUP says H81521y it seems it has some strange software/modem/rom uploaded. It is marshmallow 6.0 I cannot get into fastboot mode so I cannot unlock bootloader. I tried to install TOT of Nougat via LGUP but no luck cause it turned out I have antirollback V3.
Is it possible for me to install TWRP and then any custom ROM? I don't know what to do right now...
remialfa said:
Hello! I have similar situation I have H815 ... but LGUP says H81521y it seems it has some strange software/modem/rom uploaded. It is marshmallow 6.0 I cannot get into fastboot mode so I cannot unlock bootloader. I tried to install TOT of Nougat via LGUP but no luck cause it turned out I have antirollback V3.
Is it possible for me to install TWRP and then any custom ROM? I don't know what to do right now...
Click to expand...
Click to collapse
Did you try unlocking the official way through LG website?
https://developer.lge.com/resource/mobile/RetrieveBootloader.dev
The LG G4 H815 is officially unlockable
DjMaxTn said:
Did you try unlocking the official way through LG website?
https://developer.lge.com/resource/mobile/RetrieveBootloader.dev
The LG G4 H810 is officially unlockable
Click to expand...
Click to collapse
It seems it's H815 with AT&T Software with anti rollback v3. Adb reboot bootloader just restarts the phone, I tried to enter bootloader by keys combination. It enters firmware update mode.
I think due to v3 rollback I cannot do anything with this phone, am I right?
remialfa said:
It seems it's H815 with AT&T Software with anti rollback v3. Adb reboot bootloader just restarts the phone, I tried to enter bootloader by keys combination. It enters firmware update mode.
I think due to v3 rollback I cannot do anything with this phone, am I right?
Click to expand...
Click to collapse
Correct (axcording to my experience). I had the same issue with my previous phone. It turned out to be a ls991 with H815 software.
The only way to know your Hardware is to take a look inside the phone , you will find it printed on the motherboard.
DjMaxTn said:
Correct (axcording to my experience). I had the same issue with my previous phone. It turned out to be a ls991 with H815 software.
The only way to know your Hardware is to take a look inside the phone , you will find it printed on the motherboard.
Click to expand...
Click to collapse
Mine has H815 printed on antenna and few other parts, in system it also says H815 in LGUP its H81521Y I think it's H815 with AT&T bootloader and therefore they flashed anti rollback V3 so at this point I cannot do anything...
Hi All,
Was wondering if there will be any issues with flashing to Canadian LG firmware from Verizon phone.
onenite said:
Hi All,
Was wondering if there will be any issues with flashing to Canadian LG firmware from Verizon phone.
Click to expand...
Click to collapse
As long as the kdz your cross flashing is not a T-mobile kdz. You should be fine you will lose wifi calling and such.
netookska05 said:
As long as the kdz your cross flashing is not a T-mobile kdz. You should be fine you will lose wifi calling and such.
Click to expand...
Click to collapse
Thank you, it worked. When I check the hardware info it shows LG-G710ULM, does the Canadian AWM = ULM?
onenite said:
Thank you, it worked. When I check the hardware info it shows LG-G710ULM, does the Canadian AWM = ULM?
Click to expand...
Click to collapse
Crossflashing does not change your phone model. Yes it will say that just remember what kdz your on?
netookska05 said:
Crossflashing does not change your phone model. Yes it will say that just remember what kdz your on?
Click to expand...
Click to collapse
I flashed G710AWM20c_00_1025.kdz, but strangely says G710ULM. My original phone model number is G710VM.
onenite said:
I flashed G710AWM20c_00_1025.kdz, but strangely says G710ULM. My original phone model number is G710VM.
Click to expand...
Click to collapse
yes, I too have verizon and when I crossflash it says the same no big deal
netookska05 said:
yes, I too have verizon and when I crossflash it says the same no big deal
Click to expand...
Click to collapse
Cool, thanks.
One last question I have is, can I update the software through the updater?
If not, when I do an "upgrade" option through LGUP, will it wipe my phone data, or will it be like any other update through the updater on the phone?
Lgup will wipe data. Going through the software update in the phone will keep data as long as you are on stock. If you are crossflashed to anther kdz software update in phone wont work. You need to manually update with lgup.
onenite said:
Thank you, it worked. When I check the hardware info it shows LG-G710ULM, does the Canadian AWM = ULM?
Click to expand...
Click to collapse
Kindly tell me which method you used? i have G710vm and want to upgrade to android 10 i'm confused which method to use without bricking my phone.
HassanShah said:
Kindly tell me which method you used? i have G710vm and want to upgrade to android 10 i'm confused which method to use without bricking my phone.
Click to expand...
Click to collapse
did you get the chance to update?
I want to root an LG g4, the bootloader and/or recovery seem to be missing from the device. Purchased used off ebay. Is the LG LS991 [H811] Model (Sprint) (also seller claimed its unlocked and that seems to be so when i tested my sim). I can only get the phone into download mode, so when i check it with SALT I see the antirollback says "40". I heard the term frankenstine device thrown around before. IS it even possible to root this phone anymore? IS it possible to get access to the bootloader? I feel like i've been walking around in the dark for a while. I would greatly appreciate any advice
SolidIcecube said:
I want to root an LG g4, the bootloader and/or recovery seem to be missing from the device. Purchased used off ebay. Is the LG LS991 [H811] Model (Sprint) (also seller claimed its unlocked and that seems to be so when i tested my sim). I can only get the phone into download mode, so when i check it with SALT I see the antirollback says "40". I heard the term frankenstine device thrown around before. IS it even possible to root this phone anymore? IS it possible to get access to the bootloader? I feel like i've been walking around in the dark for a while. I would greatly appreciate any advice
Click to expand...
Click to collapse
In SALT switch to develop mode (SALT thread FAQ tells how) and then check the ARB again
steadfasterX said:
In SALT switch to develop mode (SALT thread FAQ tells how) and then check the ARB again
Click to expand...
Click to collapse
Hi, I've got a similar issue. US991 bought new 2017 from LG via newegg. Advertised unlocked, assumed that just meant carrier unlocked, which it is, but also has OEM unlock flag in developer options. LGMENU shows ARB=2 but SALT stable shows ARB=20 so won't flash USU. SALT develop mode shows ARB=2.
Do I USU from develop mode? Does this one need USU (have never tried to flash TWRP or root or anything. Any help/guidance is welcome. the MM LG pushed to it in 2017 doesn't have firmware support for VOLTE which i was hoping to get by flashing a new ROM since i have have no calling since the AT&T 3G shutdowm.
ldh37 said:
Hi, I've got a similar issue. US991 bought new 2017 from LG via newegg. Advertised unlocked, assumed that just meant carrier unlocked, which it is, but also has OEM unlock flag in developer options. LGMENU shows ARB=2 but SALT stable shows ARB=20 so won't flash USU. SALT develop mode shows ARB=2.
Do I USU from develop mode? Does this one need USU (have never tried to flash TWRP or root or anything. Any help/guidance is welcome. the MM LG pushed to it in 2017 doesn't have firmware support for VOLTE which i was hoping to get by flashing a new ROM since i have have no calling since the AT&T 3G shutdowm.
Click to expand...
Click to collapse
only H811 does NOT need UsU. The h815 can be unlocked as well but only when you have the unlock bin already as the LG website closed. so: yes you need UsU.
yes keep SALT on develop and flash UsU there. The good thing is that FAQ #1 applies to your device so you could even go back if something is not working as you want it.
Thanks for your help steadfasterX.
US991_UsU_unlock.zip in develop mode worked great.
twrp-3.5.2_9-PREVIEW-275_g4.img worked great.
however, i have a new issue. when i flashed US991_UsU_baseband_flash-in-twrp.zip my SIM is no longer recognized; mobile data can't be enabled, says connection not allowed so can't add an APN. LGMENU shows normal APNs (ATTPHONE, NEXTGENPHONE, etc are gone). has a couple prepay APNs listed that i don't recognize and can't edit thru LGMENU. SALT GPT is H811 which i thought was just for the ROMs. do i need to actually flash H811 basebands? or just flash one of your H811 ROMs like lineage 18.1? not sure how to fix this. again, any help/guidance is much appreciated.
steadfasterX said:
only H811 does NOT need UsU. The h815 can be unlocked as well but only when you have the unlock bin already as the LG website closed. so: yes you need UsU.
yes keep SALT on develop and flash UsU there. The good thing is that FAQ #1 applies to your device so you could even go back if something is not working as you want it.
Click to expand...
Click to collapse
Thanks for your help steadfasterX.
US991_UsU_unlock.zip in develop mode worked great.
twrp-3.5.2_9-PREVIEW-275_g4.img worked great.
however, i have a new issue. when i flashed US991_UsU_baseband_flash-in-twrp.zip my SIM is no longer recognized; mobile data can't be enabled, says connection not allowed so can't add an APN. LGMENU shows normal APNs (ATTPHONE, NEXTGENPHONE, etc are gone). has a couple prepay APNs listed that i don't recognize and can't edit thru LGMENU. SALT GPT is H811 which i thought was just for the ROMs. do i need to actually flash H811 basebands? or just flash one of your H811 ROMs like lineage 18.1? not sure how to fix this. again, any help/guidance is much appreciated.
ldh37 said:
Thanks for your help steadfasterX.
US991_UsU_unlock.zip in develop mode worked great.
twrp-3.5.2_9-PREVIEW-275_g4.img worked great.
however, i have a new issue. when i flashed US991_UsU_baseband_flash-in-twrp.zip my SIM is no longer recognized; mobile data can't be enabled, says connection not allowed so can't add an APN. LGMENU shows normal APNs (ATTPHONE, NEXTGENPHONE, etc are gone). has a couple prepay APNs listed that i don't recognize and can't edit thru LGMENU. SALT GPT is H811 which i thought was just for the ROMs. do i need to actually flash H811 basebands? or just flash one of your H811 ROMs like lineage 18.1? not sure how to fix this. again, any help/guidance is much appreciated.
Click to expand...
Click to collapse
well there are 2 problems here:
1. not many us991 users here so less user feedback
2. usually no one wants to stay stock so less user feedback
the main problem is that the baseband files are incompatible with your bootloader stack (hopefully its just that). a fix for that would be creating a new baseband flash file from your modem partition. pls provide it from your backup BEFORE using UsU and I can take a look
steadfasterX said:
well there are 2 problems here:
1. not many us991 users here so less user feedback
2. usually no one wants to stay stock so less user feedback
the main problem is that the baseband files are incompatible with your bootloader stack (hopefully its just that). a fix for that would be creating a new baseband flash file from your modem partition. pls provide it from your backup BEFORE using UsU and I can take a look
Click to expand...
Click to collapse
Thank's again for your help. attached is pre-USU modem from SALT backup
ldh37 said:
Thank's again for your help. attached is pre-USU modem from SALT backup
Click to expand...
Click to collapse
hmm seems it was not attached
steadfasterX said:
hmm seems it was not attached
Click to expand...
Click to collapse
damn. let me try that again.
ldh37 said:
damn. let me try that again.
Click to expand...
Click to collapse
sorry for the delay, went to vacation...
pls try the attached one and let me know how it goes!