Lg G8 crossflash - LG G8 Questions & Answers

Has anyone successfully crossflashed the g820n korean version with us unlocked g820qm
Kdz? Is it possible?
Thanks

Did you managed to corssflash it ?

Imei lose after crosflash

phan20 said:
Imei lose after crosflash
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Isn't it pssible to recover it if you backed up the correct partition ?

I have no backup

Related

[Q] change my phones variant.

Can I change my phone's variant. Specifically d850 to d855. Tot flashing
No.
thisnut82 said:
Can I change my phone's variant. Specifically d850 to d855. Tot flashing
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Only possiblle on HTC`s with S-Off and unlocked bootloader afaik.

Install t-mobile rom onto h812 possible?

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.
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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
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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...
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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
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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.
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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.
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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.

LG G4 H815 Sim Unlock

Hello Friends,
Recently i bought LG G4 H815 Network Unlocked Cell
if i Upgrade or downgrade OS than will it ask again Network Code(Sim Unlock Code ) because i don't have code
Please give reply if anyone know
sunnymodh said:
Hello Friends,
Recently i bought LG G4 H815 Network Unlocked Cell
if i Upgrade or downgrade OS than will it ask again Network Code(Sim Unlock Code ) because i don't have code
Please give reply if anyone know
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Click to collapse
Ensure you backup EFS ! This stores many important data like the unlock setting. Normally you will not need to unlock again but just for the case I highly recommend to backup EFS. Go in my TWRP thread and read the FAQ to find out how you can backup the efs manually. You can do so with TWRP as well but use my latest beta to do so then.
.
Sent from my LG-H815 using XDA Labs
steadfasterX said:
Ensure you backup EFS ! This stores many important data like the unlock setting. Normally you will not need to unlock again but just for the case I highly recommend to backup EFS. Go in my TWRP thread and read the FAQ to find out how you can backup the efs manually. You can do so with TWRP as well but use my latest beta to do so then.
.
Sent from my LG-H815 using XDA Labs
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Is it Possible to Get Code from EFS Backup ?
sunnymodh said:
Is it Possible to Get Code from EFS Backup ?
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Click to collapse
Not afaik. But if you have a backup it is not needed.
Sent from my LG-H815 using XDA Labs
steadfasterX said:
Not afaik. But if you have a backup it is not needed.
Sent from my LG-H815 using XDA Labs
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Thanks for Reverts
I got a cell 7 days back but whenever i tried India 4G Rellinace Jio Sim, internet is not working , even i tried to access 277634#*# or 277634#*#, but giving error than is possible to a fake Cell ?
Even i cheeked CPU-Z, IMEI all are perfect and get result as specification but i don't know what is the problem
Please if you know than tell me..

LG G7 - no OTAs after unbranded firmware. Change IMEI?

Hi, I just got a LG G7. I'm from Italy and my G7 is TIM branded. So, I flashed a brandless firmware, but that prevents me from getting OTA upates. I can't even update with LG Bridge because my IMEI is for a TIM branded product. I have to use LG UP to manually update the phone, or flash TIM firmware again to get OTAs.
TIM Italy's G7 have an IMEI like like "355775092x", while brandless G7s have "3557750904x". Is there something wrong if I change my IMEI to 3557750904x and use random numbers after "x" to get updates like everyone? Would it even work?
manontour said:
Hi, I just got a LG G7. I'm from Italy and my G7 is TIM branded. So, I flashed a brandless firmware, but that prevents me from getting OTA upates. I can't even update with LG Bridge because my IMEI is for a TIM branded product. I have to use LG UP to manually update the phone, or flash TIM firmware again to get OTAs.
TIM Italy's G7 have an IMEI like like "355775092x", while brandless G7s have "3557750904x". Is there something wrong if I change my IMEI to 3557750904x and use random numbers after "x" to get updates like everyone? Would it even work?
Click to expand...
Click to collapse
Changing IMEI is illegal and the servers from LG know that the IMEI doesn't match the firmware. Thats why you can't update. Your choices are to continue updating with LGUP or go back to your firmware
LameMonster82 said:
Changing IMEI is illegal and the servers from LG know that the IMEI doesn't match the firmware. Thats why you can't update. Your choices are to continue updating with LGUP or go back to your firmware
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Click to collapse
Its not illegal in all countrys.
LameMonster82 said:
Changing IMEI is illegal and the servers from LG know that the IMEI doesn't match the firmware. Thats why you can't update. Your choices are to continue updating with LGUP or go back to your firmware
Click to expand...
Click to collapse
It's not illegal in all countries. I wonder if I could use an IMEI that can receive updates without using LGUP isntead, but also without risking that my device is blocked or something.
I also don't understand why LG decided to block updates to people with IMEIs like mine. These devices contains apps from my carrier and some of them replaces what LG stock apps do. So, I wouldn't block someone trying to get LG apps and remove the carrier ones... whatever.
manontour said:
It's not illegal in all countries. I wonder if I could use an IMEI that can receive updates without using LGUP isntead, but also without risking that my device is blocked or something.
I also don't understand why LG decided to block updates to people with IMEIs like mine. These devices contains apps from my carrier and some of them replaces what LG stock apps do. So, I wouldn't block someone trying to get LG apps and remove the carrier ones... whatever.
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Click to collapse
Sorry, you are wrong. It is illegal. But anyway It will not work.
Did you change imei ??
saymonek said:
Sorry, you are wrong. It is illegal. But anyway It will not work.
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Click to collapse
proof of your statement?
don't know where you live but in italy is not illegal at all. Probably the same is in all europe.
how do you plan to change it? with root?
back to stock brand firmware or flash to the last full updated firmware
washwash said:
proof of your statement?
don't know where you live but in italy is not illegal at all. Probably the same is in all europe.
how do you plan to change it? with root?
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Can I flash LG G7 Verizon to Canadian?

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.
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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.
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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?
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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?
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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.
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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
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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?
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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.
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did you get the chance to update?

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