[Guide] LG G5 Back to Life [Download mode] [LG Flash tool] [Unknown model in LGUP]

Is the guide working for you and is it easy to follow

  • Yes it is working and easy to follow

    Votes: 27 56.3%
  • Yes it is working but it is not easy to follow

    Votes: 7 14.6%
  • It is easy to follow but not working

    Votes: 9 18.8%
  • Neither it is working nor it is easy

    Votes: 5 10.4%

  • Total voters
    48

sabi95190

Senior Member
Jan 30, 2016
246
20
0
I also do have H830 and I ain't facing any problem. Can you please explain your bootloop issue a bit. Did you try matching your fulmics rom downloaded zip md5 with the one given on official thread.
When i installed fulmics i tried to boot then i've got bootloop who puts me everytime in twrp... I'm back in stock now... But i would like to have fulmics. I've downloaded the rom 3 times same problem md5 is matching
 

dksoni411

Senior Member
Dec 7, 2013
416
347
98
23
Missing
lovinglg.blogspot.com
When i installed fulmics i tried to boot then i've got bootloop who puts me everytime in twrp... I'm back in stock now... But i would like to have fulmics. I've downloaded the rom 3 times same problem md5 is matching
Have you tried formatting data for the first time when you flashed twrp also which twrp version and root guide are you following
 
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Valgore

Member
Jan 26, 2016
10
0
0
@dksoni411 , @autoprime

I seem to be at a blocker for your method. I believe there is no KDZ or TOT file for my RS98821a on nougat. The only files I see for RS988 from your link are here. Do I *have* to use the 11c KDZ or is there a way for me to use the RS98821a files in that list? Maybe @autoprime could comment?

I tried to flash the COMPLETE zip from this post using autoprimes method. I had twrp installed so I flashed it from within twrp. This resulted in a bootloop with "boot verification fail cause mismatch_sig_len" in red at the top left of the screen. I was able to get into factory reset (vol- and power) and do that, but it still just bootloops, though with the red error gone. I am able to get into download mode, and I'm able to have everything else appear to work in your method up to the point where I need a KDZ, which is at the beginning.

My computer sees my device. I can change the port to 41. I'm just not sure how to proceed.

Thanks in advance!

EDIT: I used the KDZ from 11c and it worked. So now I'm on MM. At least my phone is back, however my question about the use of autoprime's zips I'm still unsure about. Thank you for this excellent guide.
 
Last edited:

shuntynz

New member
Sep 8, 2017
2
0
0
Dead Boot LG G5 H820. Is there a way to fix.

I had LG G5 H820 AT&T handset.
Last week I decided to Update my device to Nougat Update manually using LGUP software to H820PR20a_00_1123.kdz file. But the phone never restarted after the update was completed successfully. Now it is only showing qualcomm hs-usb qdloader 9008 port in Device manager.

It was the worst decision, now is there any way i can repair this issue. I have tried Qualcomm tools with LG G5 H850 ROM kdz file, also tried LG G5 LS992 tot files. But nothing is working out.

Help will be appreciated.
 

backslashV

Senior Member
Aug 24, 2009
299
33
0
could you provide the DLLs for the G6 US997? I have this "unknown model" problem too.
[EDIT] I have the common DLL. Where can I get the other DLL for my model?
 
Last edited:

dksoni411

Senior Member
Dec 7, 2013
416
347
98
23
Missing
lovinglg.blogspot.com
could you provide the DLLs for the G6 US997? I have this "unknown model" problem too.
[EDIT] I have the common DLL. Where can I get the other DLL for my model?
You can get one by ectracting kdz. I'm not sure about other dll because I don't have that phone, also I didn't found any related thread for g6 about this topic. So, if you have first dll then extract other from kdz.
If you can find any thing then let me know so I can make a related thread.
 

backslashV

Senior Member
Aug 24, 2009
299
33
0
You can get one by ectracting kdz. I'm not sure about other dll because I don't have that phone, also I didn't found any related thread for g6 about this topic. So, if you have first dll then extract other from kdz.
If you can find any thing then let me know so I can make a related thread.
I created a thread in the G6 forum. I extracted the common DLL from kdz. I don't think you got the other DLL from kdz as well, right?
 
Last edited:

backslashV

Senior Member
Aug 24, 2009
299
33
0
OH MY GODDDDDDDDDD!. Having lost all hope I tried your dll and it worked. OH MY GODDDD. CAN'T THANK YOU ENOUGH.

LGUP, however, still shows unknown model.

[EDIT] disconnecting and reconnecting the phone made LGUP recognize the phone. THANK YOU AGAIN.
 
Last edited:

gentr

Senior Member
Apr 4, 2013
848
226
43
Have you tried formatting data for the first time when you flashed twrp also which twrp version and root guide are you following
i have a lgh815 but this not work for me, i now this is for lg g5 but i downgrade my h815 with lg bridge from nougat to mm with out flash first mm bootloader and now phone is stuck in download mode in 24% in lg bridge, i tried with your method but when re connect the phone after start again the lgflashtool and change dll and dz for my h815. thanks for any help if you can
 
Last edited:

jpkillerage

Member
Feb 22, 2014
22
1
0
Need help. Phone returns status 2

Ive got a lg g5 h830 which apparently didnt like being messed with. Unlocked its bootloader and tried to flash sonething on an apparently flash-locked version. I really did try though, my bad...

Now ive tried both methods posted here. First i got a status 3 result, but when i restarted it went back to download mode. When i tried doing everything again i got a status 2. I tried the second method but it didnt seem to work.
When i tried everything from tve start again, i got a status 2 return this time and while everything was leadong to that status changing tl 3 like the first time, this time flashtool said something like "cant access COM 41" when it had rebooted the phone.

Any ideas? Ill keep posting as soon as i get back home with my pc and keep triying to do this.
 

dksoni411

Senior Member
Dec 7, 2013
416
347
98
23
Missing
lovinglg.blogspot.com
Ive got a lg g5 h830 which apparently didnt like being messed with. Unlocked its bootloader and tried to flash sonething on an apparently flash-locked version. I really did try though, my bad...

Now ive tried both methods posted here. First i got a status 3 result, but when i restarted it went back to download mode. When i tried doing everything again i got a status 2. I tried the second method but it didnt seem to work.
When i tried everything from tve start again, i got a status 2 return this time and while everything was leadong to that status changing tl 3 like the first time, this time flashtool said something like "cant access COM 41" when it had rebooted the phone.

Any ideas? Ill keep posting as soon as i get back home with my pc and keep triying to do this.
You should try whole process on some other pc with usb 2.0 port.
Also if you get status two and phone won't boot into system try locking bootloader (you can unlock it later) and booting or repeat process. It's worth giving it a try.
 

jpkillerage

Member
Feb 22, 2014
22
1
0
Thanks!!! it worked

Seems my asus notebook only had usb 3+ ports, when i tried it on another one it worked. thank you very much.

Also, if someone gets the "not lg g5" message on the modified recowvery, you have to adb kill-server before running the script. thats if you have installed adb before, of course. otherwise i dont konw.
 

neruda96

New member
Nov 6, 2017
4
0
0
error

hi i try to flash my lg g5 ls992 , but send error mensaje : TOT antirollback version is small

thanks for you help , i love g5 =(

 

neruda96

New member
Nov 6, 2017
4
0
0
hi thanks for your answer, i try to flash LGUP my ls992 but in 10% send error i flashing LS992ZV804, i try to power on the cell and dont start the cell is in download mode.
next i try to flash whith you steps but send the error antirollback error , and the other flash software dont work.

Can you give me a little more info. Like on which build you are right now, which build you are trying to flash, which tool you are using, in which state your phone is?


---------- Post added at 06:06 PM ---------- Previous post was at 05:53 PM ----------

when i power on the cell , this enter to download mode and this menssage 633a s0.0 as0.0 b100 uhs
s u lgls992 0.7.0 hrev_10 ls992zvc.
when i power on the sent always on in firmware update