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Hello,
Now the phone works, so here is the facts and the steps to resolve the problem :
So, I get a F400S who come flashed in F400K.
Then, it was flash in D855 by mistake.
When I started the phone, it got stuck on the LG logo.
If I tried to go to recovery, I was able to ask the wipe but after he returned on the LG logo.
If I tried to go to dowload mode, I seen the "download mode popup", but after it went into fastboot mode.
In fastboot mode, I used a F400K laf image (fastboot boot laf stock-laf.img).
Then, the download screen shows up ! And my PC started to install the drivers for com port.
I put the lg port to COM 41, then started flashtool with this dll : https://drive.google.com/file/d/0B-H4G_jDRCJwRVhBcFdGVzFjTHc/edit?usp=sharing and F400S TOT (not sure if necessary but this is what i did).
The download failed at 11%, but from this the phone booted in download mode without help ! And PC installed other drivers.
From here, I put a F400K tot with the same tool, failed at 83% but the phone worked.
With the same DLL, I was able to flash stock F400S (failed at 80%+ too).
Then, i rooted the phone, put TWRP on it and flash Cloudy G3.
Phone works like a charm now !
My english is not very good, I hope you understand the steps. If someone getstuck I'll be happy to help him in French (or with my bad English).
Thanks to all !
Have you tried flash stock firmware in download mode?
DelBoy said:
Have you tried flash stock firmware in download mode?
Click to expand...
Click to collapse
I can't reach the download mode screen, sadly.
After the download mod popup, the phone start fastboot mode without asking anything.
Do you still have TWRP?
DelBoy said:
Do you still have TWRP?
Click to expand...
Click to collapse
This phone never had TWRP. He never tried to flash anything on it before that.
Thats bad then.
I believe your only choice is repair. LG box could solve this.
Maybe someone has some other suggestion.
It's an imported Asian phone, it will be too much expensive to send it to be fix.
If someone as another solution (even if is not a free solution), i'll be happy.
Go to a gsm service. A jtag should fix it. It shouldn't cost more than 40$.
Sent from my LG G2 D802/smart phones,dumb people.
kimitza said:
Go to a gsm service. A jtag should fix it. It shouldn't cost more than 40$.
Sent from my LG G2 D802/smart phones,dumb people.
Click to expand...
Click to collapse
Thanks, but never seen a service like this here (I live in France).
Close to zero gsm repair shops here, and the few that exist replace Galaxy / Iphone screen, nothing more.
Anyone know a reliable online shop to send it ?
Shinraz said:
Thanks, but never seen a service like this here (I live in France).
Close to zero gsm repair shops here, and the few that exist replace Galaxy / Iphone screen, nothing more.
Anyone know a reliable online shop to send it ?
Click to expand...
Click to collapse
How did he flash a d855 rom without twrp ?
Sent from my LG-D850 using XDA Free mobile app
shahkam said:
How did he flash a d855 rom without twrp ?
Sent from my LG-D850 using XDA Free mobile app
Click to expand...
Click to collapse
When I ask this to him, he don't even understand the question and cannot state exactly what he did now ...
Anything to try if TWRP was here ?
How did he flashed the D855 rom?
Write doen steps that he made.
Shinraz said:
When I ask this to him, he don't even understand the question and cannot state exactly what he did now ...
Anything to try if TWRP was here ?
Click to expand...
Click to collapse
Did he use a computer to flash?
Or did he use his phone to flash?
If he used his phone to flash then he used TWRP.
If he used his computer to flash then he didn't use TWRP.
He used a computer.
Only fastboot respond but the butloader is no unlocked, so I think the phone is really dead. So sad ...
I'd say your only bet is jtag if you can't get into dowload mode or twrp because you need to be in dowload mode to flash .kdz and twrp for a custom rom
Sent from my LG-D855 using XDA Free mobile app
Thanks for the informations.
I tried to contact a few gsm repair shop, no one can jtag a G3.
So, anyone know a good gsm repair shop with a website ?
Shinraz said:
Thanks for the informations.
I tried to contact a few gsm repair shop, no one can jtag a G3.
So, anyone know a good gsm repair shop with a website ?
Click to expand...
Click to collapse
Did you flash the right laf.img and boot.img for your version and did you delete first than flash ?
MicFic said:
Did you flash the right laf.img and boot.img for your version and did you delete first than flash ?
Click to expand...
Click to collapse
The bootloader is locked, i cannot delete / flash in fastboot.
Shinraz said:
The bootloader is locked, i cannot delete / flash in fastboot.
Click to expand...
Click to collapse
Look on ebay there is some shops offering jtag services which requires you sending your device in and patiently wait at this point you have nothing to loose !
Sent from my LG-D850 using XDA Free mobile app
I found one guy in europe on ebay for LGs, i'll ask it if he's able to do it. Thanks.
Edit : Apparently, no jtag for F400s, he want me to pay twice the price for emmc desoldering, soldering and programming with no warranty that works.
So, the phone is dead ...
Thanks all for the informations.
About to buy this phone and am getting mixed answers reading through the threads. Can the latest build (D85130g) be downgraded or will I get an error with the flash tool. Don't want to spend the money and be stuck on stock. I know kingo only works with earlier firmware.
Yes you Can.
billard412 said:
About to buy this phone and am getting mixed answers reading through the threads. Can the latest build (D85130g) be downgraded or will I get an error with the flash tool. Don't want to spend the money and be stuck on stock. I know kingo only works with earlier firmware.
Click to expand...
Click to collapse
You can Downgrade from 30G to 10R, I did it a few times using LGUP without any problem.
PonchosoftX said:
You can Downgrade from 30G to 10R, I did it a few times using LGUP without any problem.
Click to expand...
Click to collapse
THANK YOU! I've been trying to find an answer for a week.
People are moving on from this device I think.
Moon75 said:
People are moving on from this device I think.
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Click to collapse
Obviously. It's 3 years old. That being said, some of us are broke af and are buying it for the good specs. Despite the age
It still do the job well if hardware not failing. If you root it and put new software on it work as new so its very good.
Moon75 said:
It still do the job well if hardware not failing. If you root it and put new software on it work as new so its very good.
Click to expand...
Click to collapse
I actually ended up buying it after confirming it could be downgraded. Ran lineage for a few days but despite being fast, was a little buggy for me. Currently running the stock 30g rom and aside from the crappy battery life, i have no complaints. This phone was definitely advanced for its time and gives new phones a run for their money. This phone is solid. 80$ well spent imo
I've been trying for 2 days to downgrade my G3 D851 and it will not flash using LGup or LG Flash tool 2014. The process starts, but always stops due to error. LGUP always shows Unknown Device [COM41, D85130e]. Have set port to 41 and random. Can anyone offer any solutions? Have tried tot and kdz.
timnop said:
I've been trying for 2 days to downgrade my G3 D851 and it will not flash using LGup or LG Flash tool 2014. The process starts, but always stops due to error. LGUP always shows Unknown Device [COM41, D85130e]. Have set port to 41 and random. Can anyone offer any solutions? Have tried tot and kdz.
Click to expand...
Click to collapse
i believe the flash tool I'm using is from this thread(https://forum.xda-developers.com/tmobile-lg-g3/general/firmware-t-mobile-lg-g3-t2818667) under "kdz flashing method". Using a stock 30D kdz from one of these threads. I don't set the port to anything. Never fails for me. If it doesn't work I'll zip the exact one i have and upload when i get home. Where is it failing? What percentage?
Thanks. I finally succeeded with LGUP. Turned out when I downloaded and installed LGUP, it came with 8994 dll, and the D851 requires 8974 dll. It still didn't work with KDZ, but I got it to work with TOT. What a PITA!!! I don't envy anyone else trying to root D85130e without advanced knowledge. Thanks for your offer to help. Maybe this will help someone else that is having problems. The LGUP download with the 8974 dll is here. http://oceanhost.eu/545euinlq0hw/LGUP_LG_G3.zip.htm
timnop said:
Thanks. I finally succeeded with LGUP. Turned out when I downloaded and installed LGUP, it came with 8994 dll, and the D851 requires 8974 dll. It still didn't work with KDZ, but I got it to work with TOT. What a PITA!!! I don't envy anyone else trying to root D85130e without advanced knowledge. Thanks for your offer to help. Maybe this will help someone else that is having problems. The LGUP download with the 8974 dll is here. http://oceanhost.eu/545euinlq0hw/LGUP_LG_G3.zip.htm
Click to expand...
Click to collapse
cool. I haven't tried a tot yet. I heard they quit working after you surpassed a certain update. No problem with KDZs here. Anyway glad to hear it worked out.
timnop said:
Thanks. I finally succeeded with LGUP. Turned out when I downloaded and installed LGUP, it came with 8994 dll, and the D851 requires 8974 dll. It still didn't work with KDZ, but I got it to work with TOT. What a PITA!!! I don't envy anyone else trying to root D85130e without advanced knowledge. Thanks for your offer to help. Maybe this will help someone else that is having problems. The LGUP download with the 8974 dll is here. http://oceanhost.eu/545euinlq0hw/LGUP_LG_G3.zip.htm
Click to expand...
Click to collapse
Can u link the tot you used to restore? All i found was 10c Looks like i gotta go that route. My flash tool stopped working.
Downgrade D851
billard412 said:
Can u link the tot you used to restore? All i found was 10c Looks like i gotta go that route. My flash tool stopped working.
Click to expand...
Click to collapse
This is the one I used. https://www.androidfilehost.com/?fid=23622183712473995
Good luck to you. I was able to root with stump root after flashing this.
I had this issue last night so thought id save people some trouble and share the the file needed incase you need to flash over 20D's KDZ file either to go back or forward.
Please unzip and put in C:\Program Files (x86)\LG Electronics\LGUP\model\common
Works with LGUP 1.14
Whiskeyomega said:
I had this issue last night so thought id save people some trouble and share the the file needed incase you need to flash over 20D's KDZ file either to go back or forward.
Please unzip and put in C:\Program Files (x86)\LG Electronics\LGUP\model\common
Works with LGUP 1.4
Click to expand...
Click to collapse
Do you happen to have a link to LGUP 1.4? I can only find 1.14.3.
Thanks
Interesting. Looks like they updated the KDZ format again.
*Sigh*
-- Brian
dvgb173 said:
Do you happen to have a link to LGUP 1.4? I can only find 1.14.3.
Thanks
Click to expand...
Click to collapse
sorry i meant 1.14 just missed a 1 out.
dvgb173 said:
Do you happen to have a link to LGUP 1.4? I can only find 1.14.3.
Thanks
Click to expand...
Click to collapse
1.14 is the latest. I found some other typos in other LG threads also calling it "1.4".
Sent via open market LG US998 V30/V30+
Damn.
I had it working with 1.14, but I thought I had the wrong version. So I uninstalled it.
Now I can't get it to load - wrong dll for VS99620a.
Plus I wanted the developer version of LGUP.
Pretty sure I need the Partition option to flash other-model KDZ.
Hi there,
I need some help because i fell so stupid.... I cannot use the patched DLL for uppercut in order to flash the newest Oreo KDZ for H930...
I installed LGUP 1.14, USB DRiervs, etc... Download and uncompress uppercut 1.0.0.0. I downloaded the patched DLL 1.0.31.9. Even if I copy that dll on the uppercut folder or wherever i copy, the version shown on LGUP is always the 1.0.28.9... SO I cannot flash the latest Oreo KDZ
Help please?
thx in advance
you have to run lgup.exe not uppercut shortcut.
Dizzyrul3z said:
you have to run lgup.exe not uppercut shortcut.
Click to expand...
Click to collapse
****...!!! You're right...
I didn't create the common folder. I thought yes, but no...
Thx a lot!!!!
wont let me create common folder after created disapears
suckme69 said:
wont let me create common folder after created disapears
Click to expand...
Click to collapse
Check permissions. It was my previous fault
kherio said:
Check permissions. It was my previous fault
Click to expand...
Click to collapse
My bad my folders in setting was hidden
Hi, has anyone been able to revert back to N from O, please? I upgraded my H930DS (Hong Kong) to the Open Euro 20d ROM, but haven't been able to go back to N using either the patched LGUP or UPPERCUT (… I'm not happy with the limitation on the use of the dual SIM). With the phone in download mode, the error I get is "DLL for H93020d is invalid. Please install valid DLL package(*.msi) for the model". I get the same message if I try both methods with the phone in its normal operating mode. Thanks for any help.
peterjcar said:
Hi, has anyone been able to revert back to N from O, please?
Click to expand...
Click to collapse
Yes. I saw a report yesterday of someone who had downgraded. Just flash the KDZ:
autoprime said:
to downgrade just use the new oreo lgup_common.dll and you should be able to flash previous N KDZs again in LGUP.
Click to expand...
Click to collapse
peterjcar said:
Hi, has anyone been able to revert back to N from O, please? I upgraded my H930DS (Hong Kong) to the Open Euro 20d ROM, but haven't been able to go back to N using either the patched LGUP or UPPERCUT (… I'm not happy with the limitation on the use of the dual SIM). With the phone in download mode, the error I get is "DLL for H93020d is invalid. Please install valid DLL package(*.msi) for the model". I get the same message if I try both methods with the phone in its normal operating mode. Thanks for any help.
Click to expand...
Click to collapse
hi, I am using H930DS (Hong Kong) too.
Could you please tell me how flash the Open Euro 20d ROM?
Thanks!!!
kimball said:
hi, I am using H930DS (Hong Kong) too.
Could you please tell me how flash the Open Euro 20d ROM?
Thanks!!!
Click to expand...
Click to collapse
ROM or the KDZ? You probably mean the stock open European KDZ.
For the KDZ, go to the thread. Instructions are there.
https://forum.xda-developers.com/showthread.php?t=3779076
Sent via open market LG US998 V30/V30+
ChazzMatt said:
Yes. I saw a report yesterday of someone who had downgraded. Just flash the KDZ:
Click to expand...
Click to collapse
Thanks, but I think the operative word in that quote is "should". I've tried that method with the phone in download mode and with it in its normal operating mode, but LGUP no longer recognises my phone model. I can get the LGUP pop-up with the serial port but the pop-up shows the phone as an unknown model, which I guess is the issue preventing the firmware update.
The version of LGUP_common.dll that I'm using is 1.0.35.3, which should be the latest. Its digital signature is dated Tuesday, 19 December 2017 3:33:29 PM. Its MD5# is c3df15812c1294028bfd330eb725519b.
i doesn't work for me on my ls998 v30+ sprint. do i need to make new folder (common) in the model folder? i tried with and without...
Looks like there's no going back...
peterjcar said:
Thanks, but I think the operative word in that quote is "should". I've tried that method with the phone in download mode and with it in its normal operating mode, but LGUP no longer recognises my phone model. I can get the LGUP pop-up with the serial port but the pop-up shows the phone as an unknown model, which I guess is the issue preventing the firmware update.
The version of LGUP_common.dll that I'm using is 1.0.35.3, which should be the latest. Its digital signature is dated Tuesday, 19 December 2017 3:33:29 PM. Its MD5# is c3df15812c1294028bfd330eb725519b.
Click to expand...
Click to collapse
Here is the reply I received from LG about reverting to Nougat (I asked them to do it for a fee):
"Dear Peter,
Thank you for contacting LG Customer Support. I apologise, but please be advised that we cannot put back your the previous software of your phone.
We suggest that you perform Factory Reset to your phone. This will not restore its previous software, but can fix issues of your phone. However, this will delete everything saved in your phone memory. You may back up first your files.
To reset:
Go to Settings
Select Backup & Reset
Select Factory Data Reset
If the issue will still continue, please let us know so we can assist you further.
Thank you. Have a great day ahead.
If you have any further questions or concerns, you can click on the link below to respond via email.
To help improve our Quality of Service, w e would appreciate it if you could complete our Customer Service Survey using the Survey link below.
Yours Sincerely,
Allen B.
Customer Care Representative
LG Electronics Australia & New Zealand"
… However, I was able to flash my LGH930DS to Oreo for the LGH930DS using LG Bridge after a few attempts (I couldn't get UPPERCUT to revert my phone to Nougat), resolving my issue with using the dual-SIM with the cross-flashed firmware and thus obviating my need to revert to Nougat.
Looking for some guidance please & thanks.
I have a H933, converted using the Frankenstein method to a US998. Then Unlocked BL, TWRP and rooted. Upgraded to US99820d
I would now like to flash back to stock H933. I have installed the Patched version of LGUP. I have extracted the DLL here into a common folder inside the model folder. I put the phone in Download mode, plug it in and then launch LGUP (patched). it finds the device but then errors saying the DLL is not valid for US98820d and to get a compatible DLL.
I recently bought an AT&T G8 on eBay and no matter what I try, I can't update it. It's still on the factory update. I've had an activated AT&T SIM in it for several days, tried using other SIMs, factory resetting a few times, but I still get the same error that says it can't update or there's just no update. I've tried calling tech support there and going into a store, but they were out of ideas too. Does anyone have a link to any update to try installing or any ideas for how to get it to update?
calxk713 said:
I recently bought an AT&T G8 on eBay and no matter what I try, I can't update it. It's still on the factory update. I've had an activated AT&T SIM in it for several days, tried using other SIMs, factory resetting a few times, but I still get the same error that says it can't update or there's just no update. I've tried calling tech support there and going into a store, but they were out of ideas too. Does anyone have a link to any update to try installing or any ideas for how to get it to update?
Click to expand...
Click to collapse
from which country do you come from?
rmato said:
from which country do you come from?
Click to expand...
Click to collapse
I'm in the US
calxk713 said:
I recently bought an AT&T G8 on eBay and no matter what I try, I can't update it. It's still on the factory update. I've had an activated AT&T SIM in it for several days, tried using other SIMs, factory resetting a few times, but I still get the same error that says it can't update or there's just no update. I've tried calling tech support there and going into a store, but they were out of ideas too. Does anyone have a link to any update to try installing or any ideas for how to get it to update?
Click to expand...
Click to collapse
Try LG Bridge. I had an update that stalled and then wouldn't offer me it again, connected to LG Bridge and poof done.
Install Android 10 manually with lgup. Flash android 10 kdz
trouble. said:
Install Android 10 manually with lgup. Flash android 10 kdz
Click to expand...
Click to collapse
This works on the g8? Given the lack of options we have with being able to recover the device I really don't want to brick.
p3tr0s said:
This works on the g8? Given the lack of options we have with being able to recover the device I really don't want to brick.
Click to expand...
Click to collapse
Yeah it works
p3tr0s said:
This works on the g8? Given the lack of options we have with being able to recover the device I really don't want to brick.
Click to expand...
Click to collapse
It will not brick your phone. It's very simple. Get the kdz for your at&t model. Install a dev patched lgup and flash.
trouble. said:
It will not brick your phone. It's very simple. Get the kdz for your at&t model. Install a dev patched lgup and flash.
Click to expand...
Click to collapse
Not to a complete noob here, I've been out of the flashing game for a while but I haven't been successful in finding any online images for the at&t model. Any tips on finding one?
p3tr0s said:
Not to a complete noob here, I've been out of the flashing game for a while but I haven't been successful in finding any online images for the at&t model. Any tips on finding one?
Click to expand...
Click to collapse
What's your model number and where do u live?
trouble. said:
What's your model number and where do u live?
Click to expand...
Click to collapse
LM-G820UM it's the at&t model in the United States.
p3tr0s said:
LM-G820UM it's the at&t model in the United States.
Click to expand...
Click to collapse
https://lg-firmwares.com/downloads-file/21864/G820UM20b_00_USC_US_OP_0110
There u go.
trouble. said:
https://lg-firmwares.com/downloads-file/21864/G820UM20b_00_USC_US_OP_0110
There u go.
Click to expand...
Click to collapse
That's not it. I think at&t doesn't publish kdzs.i have the same issue with Sprint
antintin said:
That's not it. I think at&t doesn't publish kdzs.i have the same issue with Sprint
Click to expand...
Click to collapse
That's my understanding as well. I'm getting the run around from at&t, cricket, and LG with them pointing the finger at each other playing the blame game. Seriously annoying... The G8 is a beast but if it's like this I might just stick with my pixel 3a. I appreciate the info though from everyone.
antintin said:
That's not it. I think at&t doesn't publish kdzs.i have the same issue with Sprint
Click to expand...
Click to collapse
It is! It's the same model kdz. How can u say that's not it?
trouble. said:
It is! It's the same model kdz. How can u say that's not it?
Click to expand...
Click to collapse
That's the us open
so has anyone flashed this firmware manually via LGUP to their AT&T g8 and was successful? does everything get wiped?
So I've bought a couple of these att LG g8. The problem was that I am on cricket so no updates. This has been a fool proof way I've found to get the updates moving.
I put in an activated (I didn't add any money to my att account) att sim, 10 bucks from Walmart. I issue a factory reset and skip all setup (except connecting to WiFi). Check update as soon as I am through setup. If it works great ,if not repeat. It's worked on 3 phones so far.
geminihc said:
so has anyone flashed this firmware manually via LGUP to their AT&T g8 and was successful? does everything get wiped?
Click to expand...
Click to collapse
No cross flash is not possible...
trouble. said:
Install Android 10 manually with lgup. Flash android 10 kdz
Click to expand...
Click to collapse
Do you have the KDZ link?
Good afternoon friends. I still have a problem on my phone "your device has failed a routine safety ..." after I locked the bootloader. I gave it unofficial for repair, they could not do anything there. But now, for some reason, my phone does not load in edl9008 mode, but there is dowmload mode as on other lg devices (in theory, it should not be). So the question is, how to flash the phone via download mode to any other firmware? The main thing for me is that it starts and I can return twrp to restore my native firmware. Yesterday I tried it through uppercut, lgup didn't work. Does anyone have any knowledge of how to download kdz to this phone?
i wish someone would leak at least one sprint KDZ firmware
blaze2051 said:
i wish someone would leak at least one sprint KDZ firmware
Click to expand...
Click to collapse
Don't think you'll ever see, in your lifetime, a sprint kdz. Nor will you see an at&t one.
It's very important to do some research, initially, before messing with your phone. It's common knowledge that these kdz don't exist, and, that is why we always want to do a full backup of our device, especially when the kdz isn't (nor will ever be) available.
So where are u now? what's the situation? I ask because there are sprint backups around (from individual personal devices), that, if done carefully, can be used to fix a device without messing up the imei and s/n.
AsItLies said:
Don't think you'll ever see, in your lifetime, a sprint kdz. Nor will you see an at&t one.
It's very important to do some research, initially, before messing with your phone. It's common knowledge that these kdz don't exist, and, that is why we always want to do a full backup of our device, especially when the kdz isn't (nor will ever be) available.
So where are u now? what's the situation? I ask because there are sprint backups around (from individual personal devices), that, if done carefully, can be used to fix a device without messing up the imei and s/n.
Click to expand...
Click to collapse
phone is good i made more than one backup just it would be nice just to throw LGup and flash instead of using Qfil or other means of backup