Flash H820 AT&T Firmware to US992 U.S. Cellular LG G5 - AT&T LG G5 Questions & Answers

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i can tell you shortly, if you flash different model you will brick the phone

story1991 said:
i can tell you shortly, if you flash different model you will brick the phone
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Yeeeaaaah i figured that out on the discord, tbh I totally forgot I made this post [emoji38]. But thank you!
Sent from my SM-G955U using Tapatalk

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Can I Flash UK/European Firmware onto my South Korean LG V10?

Hi Folks,
Just looking for a bit of advise. I have messed around with rooting and unlocking my phones in the past. I have always just followed guides here or youtube etc so not really having an clear understanding of the potential pitfalls.
I have imported an LG V10 from South Korea and overall am very happy with it. However for some reason it seems to be locked for international data roaming.
Can I get past this by flashing a UK or European firmware onto this phone when they become available ?
What device ID's or Radio's do I need to match etc or basically what do I need to watch out for. This phone can't go back to be repaired if I break it so want to make extra sure its worth it.
Thanks in advance for any help
Cheers
Chris
I'm not sure, maybe @wolfgart can help. I believe he's had a few different models of this device.
Sent from my LG-H901 using Xparent Skyblue Tapatalk 2
Warrior1975 said:
I'm not sure, maybe @wolfgart can help. I believe he's had a few different models of this device.
Sent from my LG-H901 using Xparent Skyblue Tapatalk 2
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There would be a nice paypal donation winging it's way to @wolfgart if he can. Thanks for replying.
Sent from my LG-F600S using XDA Free mobile app
fozza said:
There would be a nice paypal donation winging it's way to @wolfgart if he can. Thanks for replying.
Sent from my LG-F600S using XDA Free mobile app
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why you are saying "locked for international use"
Korean variants are free for international use. Tell me your problems
hi @wolfgart if i flash a ux version, might it activate the fm tunner if the uk version has one?
nocomp said:
hi @wolfgart if i flash a ux version, might it activate the fm tunner if the uk version has one?
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it always depends if fm chip builted in S808 inside your variant it was phisically enabled or not
i always wonder why manufacturer would add more work physically disabeling something that just do a commong motherboard and then just lock it on the software side or not.
is there an adroid app that could find/see what chip is on my version? (considering it s installed or not)
---------- Post added at 10:20 AM ---------- Previous post was at 09:41 AM ----------
would be interesting if you set it to true , you get the fm on
wolfgart said:
why you are saying "locked for international use"
Korean variants are free for international use. Tell me your problems
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Thanks @wolfgart
Ok so long story
I bought an imported LG600S from a guy on eBay who had imported it directly from South Korea I believe direct from SK Telecoms.*
This phone appears to be unlocked for any network here in the UK. *I am using a 3 Hutchison sim in it at the moment which I get calls and LTE speeds. *I have also tried a UK Vodafone sim in the phone and that works fine too.*
My problem appeared when I went to Paris France. My contract gives me unlimited data even when roaming abroad. *However in France the phone would not allow me to switch on data networks. It gave me the warning message which I have attached. *I click the accept tags but still the slider for data network was blocked (grayed out) with a message saying I needed to contact Mobile T Roaming and gave me a link to a South Korea customer service centre . *I tried to call it but obviously I don't speak Korean *
I have tried an unlocking service called unlockscope who gave me a number of codes for my IMEI number. *However none of these codes worked as the phone does not prompt you for an unlock code when you swap sims. *They also gave me a few number strings to put into the dialer to try and force it to ask for a code, however these didn't work either. As an aside the unlockscope company has offered me a full refund and we're very good at trying to trouble shooting my issue. *
So now I am a bit of a loss as to what to do next?*
I need international data roaming for work but can't figure out how to unbarr it except maybe for flashing a different *on the device firmware to get round the block.??*
All help gratefully recieved! **
Sent from my LG-F600S using XDA Free mobile app
Hi wolfgart... I have problem same like this. My LG G3 is korea set and firmware country taiwan. Before I flash to lolipop firmware malaysia my Lg G3 kitkat network only 2.5g only... After I flash to stock rom lolipop firmware malaysia my phone no more network.. after that I flash to custom rom CloudyG3 also same problem dont have any network. It like hard locking network. Hope people here can give any idea to solve my problem. ( sorry for my bad English)
Hi @wolfgart
Sorry to prompt but can you help buddy?
Sent from my LG-F600S using XDA Free mobile app
Yes you can BUT.....
yes you can but your radio problem will not solve i flashed H900 and H960 firmwares on my v10 (f600s ) every thing wifi blah blah worked except the signals there were no signals and in about network status it shows "radio off". you can only flash dz in your v10 download kdz of mentioned models and convert them to dz via kdz tools and then refirbush.
WARNING>>> I WILL NOT BE RESPONSIBLE FOR ANYTHING HAPPENED TO YOUR DEVICE. I DONT HAVE ANTIROLL BACK PROTECTION ON IF YOURS IS ON YOU MAY KILL YOUR DEVICE.
shadi47pk said:
yes you can but your radio problem will not solve i flashed H900 and H960 firmwares on my v10 (f600s ) every thing wifi blah blah worked except the signals there were no signals and in about network status it shows "radio off". you can only flash dz in your v10 download kdz of mentioned models and convert them to dz via kdz tools and then refirbush.
WARNING>>> I WILL NOT BE RESPONSIBLE FOR ANYTHING HAPPENED TO YOUR DEVICE. I DONT HAVE ANTIROLL BACK PROTECTION ON IF YOURS IS ON YOU MAY KILL YOUR DEVICE.
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So, its mean still possible to cross flash/convert from korean variant to international, all working except signal?
Or, can I flash with another korean varian? For example now I have V10 LG U+ (F600L) to V10 SKT (F600S)? How to do?
Thanks
mohaxs said:
So, its mean still possible to cross flash/convert from korean variant to international, all working except signal?
Or, can I flash with another korean varian? For example now I have V10 LG U+ (F600L) to V10 SKT (F600S)? How to do?
Thanks
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Click to collapse
yes you can test if u want at your own risk I also had f600s and now I am using the latest nougat firmware downloaded from here "https://forum.xda-developers.com/lg-v10/general/lg-v10-f600l-f600k-f600s-android-n-7-0-t3611676"" use the f600k version it works for me each and everything worked perfectly for me.
1. download the kdz
2. use kdz tools to convert it dz format.
3. use lgup to flash (it will not say invalid kdz)
im here to ask something: if you can flash a H960(A) kdz on to F600(K,S,L)...the opposite can be done too without losing features? like put the firmware V30 Nougat in V20 European?
I dont care about FM Radio working or not, only want network and wifi working.
shadi47pk said:
yes you can test if u want at your own risk I also had f600s and now I am using the latest nougat firmware downloaded from here "https://forum.xda-developers.com/lg-v10/general/lg-v10-f600l-f600k-f600s-android-n-7-0-t3611676"" use the f600k version it works for me each and everything worked perfectly for me.
1. download the kdz
2. use kdz tools to convert it dz format.
3. use lgup to flash (it will not say invalid kdz)
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How is battery life on nougat?

Now we have root for T-Mobile variant

Will the amount of development improve for the G5 in general for all variants?
I believe so, yes
What I'm wondering is how similar the Canadian model is to it. Or how much difference between the h831 and h830 there really could be.
Sent from my LG-H831 using Tapatalk
So how do I get root? Did I miss something?
Sent from my LG-H830 using XDA-Developers mobile app
ChongoDroid said:
What I'm wondering is how similar the Canadian model is to it. Or how much difference between the h831 and h830 there really could be.
Sent from my LG-H831 using Tapatalk
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pretty much the same in hardware.. but the entire bootstack is different. what works for tmobile would not work for H831. H831 is in the same boat as the ATT, Verizon and other locked variants. not possible to use the tmobile bootstack on non-tmo phones either.
cenwesi said:
So how do I get root? Did I miss something?
Sent from my LG-H830 using XDA-Developers mobile app
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apparently.. check out the tmobile g5 development section.. there's a TOT made that flashes TWRP on your devices.. works as long as you unlock the bootloader thru fastboot first.
Can some one send me the link to the t mobile lg g5 flash twrp please
Sent from my LG-H811 using Tapatalk
cenwesi said:
So how do I get root? Did I miss something?
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xXCoolGuYXx said:
Can some one send me the link to the t mobile lg g5 flash twrp please
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Here you go guys http://forum.xda-developers.com/tmobile-lg-g5/development/root-h830-t3384526/page12
autoprime said:
pretty much the same in hardware.. but the entire bootstack is different. what works for tmobile would not work for H831. H831 is in the same boat as the ATT, Verizon and other locked variants. not possible to use the tmobile bootstack on non-tmo phones either.
apparently.. check out the tmobile g5 development section.. there's a TOT made that flashes TWRP on your devices.. works as long as you unlock the bootloader thru fastboot first.
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@autoprime any hep for us? We've H850 EUA but still bootloader is not unlockable
kchannel9 said:
Here you go guys http://forum.xda-developers.com/tmobile-lg-g5/development/root-h830-t3384526/page12
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Thanks you know I try google this and nothing came up .
Sent from my LG-H811 using Tapatalk
Black_Eyes said:
@autoprime any hep for us? We've H850 EUA but still bootloader is not unlockable
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for EU H850 devices that do not pass through LG's Bootloader Unlock Developer page... the only hope is for you all to contact LG and continuing to contact/complain until they either give you a valid reason why some H850 EU variants do not work when 95% of them do... and hopefully they will add your variant/buyer-type to the unlock program officially.

Noob question: What difference between Verizon lg g5 and normal?

If i buy a verizon model i could use normal 850 roms?
I hope i'm in the right place... Sorry for varius errors....
DragonautMk said:
If i buy a verizon model i could use normal 850 roms?
I hope i'm in the right place... Sorry for varius errors....
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In order to flash any of the ROMs you'll find here on this forum you'll need to have an unlocked bootloader, which I believe is only available on the H850 European model of the G5. I haven't seen any posts on a successful unlock for the Verizon, which I believe is the VS987 and not the H850.
Abort said:
In order to flash any of the ROMs you'll find here on this forum you'll need to have an unlocked bootloader, which I believe is only available on the H850 European model of the G5. I haven't seen any posts on a successful unlock for the Verizon, which I believe is the VS987 and not the H850.
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US version of Tmobile 830 has unlocked bootloader and root as well.
Sent from my LGE LG-H830 using XDA Labs

Kdz 8.0 oreo h873 v20c

Link: https://drive.google.com/open?id=1odymjGEz4Tld1JKDq12tyFlS20olwIdq
supports H871 and ls993
H873 20e: https://drive.google.com/file/d/1aJko0viTB7Guczs0uxH57ncq_3BNxY2T/view
Update v20e: Camera Qlens
Anyone knows if it's safe to flash on H870?
My intuition says no
Same question can I flash for H870
jurastefo said:
Same question can I flash for H870
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You can only flash KDZ/ROMs for your model number (H870).
Only the region is allowed to be different, but that's not the case, so, no.
Reporting in with an H873 from Rogers - downloaded and flashed with Uppercut + LGUP.
To my extremely pleasant surprise, it updated without issue (no factory restore necessary) - Rogers Wifi Calling also prompted me to activate, but haven't yet tested.
Thanks for this!
Question: Is this KDZ carrier-specific? Will I lose any features by flashing this? And, finally, will my device be factory reset if I flash this through LGUP?
My carrier is Koodo.
victor19 said:
Anyone knows if it's safe to flash on H870?
My intuition says no
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works well on ls993 and h871, h870 i have not tested yet
I've just flashed the update on my Koodo H873 and it works perfectly. Thank you very much!
PjLyTam said:
works well on ls993 and h871, h870 i have not tested yet
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I'm scared to try this on my H872PR...
RLCircuit said:
I'm scared to try this on my H872PR...
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You shouldn't flash firmware that isn't for your specific hardware model. That's the rule of thumb.
It's probably best if you wait for the update to be released for your model. Don't risk it!
fegitoli said:
You shouldn't flash firmware that isn't for your specific hardware model. That's the rule of thumb.
It's probably best if you wait for the update to be released for your model. Don't risk it!
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Click to collapse
Thanks for the reminder, though I'm not holding my breath on any release for my model. My carrier hasn't released a single update since August 2017 so I'm better off either letting 7.0 sink in as my OS for the rest of my phone's life or hope for a way to root it :silly:
RLCircuit said:
Thanks for the reminder, though I'm not holding my breath on any release for my model. My carrier hasn't released a single update since August 2017 so I'm better off either letting 7.0 sink in as my OS for the rest of my phone's life or hope for a way to root it :silly:
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Jeez still, I'd rather have a usable phone than a slab that couldn't wait to get to Oreo. Guess your only option is to wait for root ?
Hi, you already tested it on h870 thanks for the reply
PjLyTam said:
works well on ls993 and h871, h870 i have not tested yet
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Hi, you already tested it on h870 thanks for the reply
If only this was for H872 but already know it finna be a fat minute til T-Mobile gets the update out especially since it hadn't even hit the states yet
steps for update
i have lg ls993 and flash rom to converted in to h873 please tell me the steps for update and flash this kdz
luysj said:
Hi, you already tested it on h870 thanks for the reply
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Is that a question ?
Did he tested this ROM on H870 ?
Some one please test it on h870, I can't do it because I still have warranty and I don't want to risk losing it.
Sent from my LG-H870 using XDA Labs
kiszidomi said:
Some one please test it on h870, I can't do it because I still have warranty and I don't want to risk losing it.
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we all have a guarantee on the h870, say rather that you do not want to try yourself, you prefer that someone else turns his phone into brick..
Just wait a few days and you will have the update, it is useless to hack for so little !
coyot352 said:
Just wait a few days and you will have the update
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Rather a few months
Antyhaker said:
Rather a few months
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I do not think so, in my opinion we will have a model updated every week until they have all Oreo.
When there was only Korea, I thought like you, now that Canada has had the update also I do not see why the other countries would take so much time, it sure will be fast !

V60 tmobile firmware flashed to att device? 5G Bands?

I was wondering if there's a way to flash the tmobile firmware to an unlocked att v60? Also, can the att v60 connect to all of the same 5G Bands as the tmobile version? Thanks in advance?
OrganicRobot said:
I was wondering if there's a way to flash the tmobile firmware to an unlocked att v60? Also, can the att v60 connect to all of the same 5G Bands as the tmobile version? Thanks in advance?
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Without root exploit and twrp there's no way to cross flash firmwares.
OrganicRobot said:
I was wondering if there's a way to flash the tmobile firmware to an unlocked att v60? Also, can the att v60 connect to all of the same 5G Bands as the tmobile version? Thanks in advance?
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Click to collapse
NO
The tmobile variant of the lg v series phones always have different encryption keys than all the other phones. You should never attempt to put the tmobile firmware on a non tmobile variant or vice versa.
Furthermore crossflashing does not work with LG Up. Tried to flash mine LMV600EA Taiwanese version with LMV600EA EU fw and no go. Someone said that there is a hardware lock preventing crossflashing but statment does not present any facts or explanasion.
staljin said:
Furthermore crossflashing does not work with LG Up. Tried to flash mine LMV600EA Taiwanese version with LMV600EA EU fw and no go. Someone said that there is a hardware lock preventing crossflashing but statment does not present any facts or explanasion.
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The phones from other regions may also have different encryption keys. Regardless the cross flashing for the v30, v35, and v40 were mostly the result of patched lg-up that allowed the crossflashing.
The main board may be made by andifferent manufacturer like the usa galaxy phones with snap dragons and European galaxy phones with enxoyos processors. How every you spell it.
staljin said:
Furthermore crossflashing does not work with LG Up. Tried to flash mine LMV600EA Taiwanese version with LMV600EA EU fw and no go. Someone said that there is a hardware lock preventing crossflashing but statment does not present any facts or explanasion.
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Even with uppercut? Is that still a thing like the v20 days?
I see there are some comments that it is able to convert LG V60 Tmobile to Open Canada since they are same code V600TM.
1. Is there anyone tried?
2. How about the US Cellular firmware when compare with the Open Canada?
I think both of them are open firmware like global (without carrier apps). Is it correct?
Lol take a look around. There's no way to do anything to this phone
Sent from my LM-V600 using XDA Labs
That's why I sold the phone and went back to a oneplus 8
staljin said:
Furthermore crossflashing does not work with LG Up. Tried to flash mine LMV600EA Taiwanese version with LMV600EA EU fw and no go. Someone said that there is a hardware lock preventing crossflashing but statment does not present any facts or explanasion.
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try this..
be sure your device unlock bootloader
lg v50 success cross flashing...
backup your modem_a and modem_b before flashing....
agn8888 said:
try this..
be sure your device unlock bootloader
lg v50 success cross flashing...
backup your modem_a and modem_b before flashing....
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Click to collapse
So with that file im able to cross flash my att v60? have you tried it?
Yep... with lg v50 lm v450vm ubl ,cross flashing with lg v50 lm v500n success...restore backup modem_a and modem_b.
sorry my english bad.
agn8888 said:
Yep... with lg v50 lm v450vm ubl ,cross flashing with lg v50 lm v500n success...restore backup modem_a and modem_b.
sorry my english bad.
Click to expand...
Click to collapse
Do you have IMPL lock ??
No... sorry....
Crossflashing does work on certain V600EA versions (Mainly on Europe variants) and on the V600N Pre production models, the US Versions all have IMPL Locks
see here:
https://www.reddit.com/r/LGV60/comments/noifql
agn8888 said:
Yep... with lg v50 lm v450vm ubl ,cross flashing with lg v50 lm v500n success...restore backup modem_a and modem_b.
sorry my english bad.
Click to expand...
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But doesn't the tutorial says art v50 are incompatible?
Hello. i see lg firmware canada and t-mobile are the same model. can i flash canada filmware on tmobile? thank

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