[Tutorial] Crossflash, Bypass OPID Mismatched Error

[Ratty696]

Tell me the steps to fix

Tell me the steps to fix it

First I had to follow this guide to get it to boot into download mode again https://forum.xda-developers.com/t/tutorial-rescue-from-hard-brick.4351389/
For some reason had to flash the abl_a and abl_b with development abl file to get it to load in download mode then I was able to follow this guide to finally cross flash with CAD Open kdz. Make sure you follow the steps carefully and use the version of lg up that it says to use in this guide

 

[rifay78]

First I had to follow this guide to get it to boot into download mode again https://forum.xda-developers.com/t/tutorial-rescue-from-hard-brick.4351389/
For some reason had to flash the abl_a and abl_b with development abl file to get it to load in download mode then I was able to follow this guide to finally cross flash with CAD Open kdz. Make sure you follow the steps carefully and use the version of lg up that it says to use in this guide

Thanks

 

[Vitiok70]

Si el dispositivo está rooteado, es bastante fácil corregir el error de código nt, pero en realidad no afecta nada, solo aparece en el momento del arranque.

No estoy seguro sobre el interruptor móvil de LG, no estoy familiarizado con eso.

Para obtener el 'dispositivo certificado', debe deshabilitar vbmeta, también necesita root para eso también. Pero también, nunca ha tenido un impacto negativo dejarlo como está, afaik.

salud

Thanks for the reply. I tried to fix the NT code issue with the "cust_path_mapping" archives but to no avail. I can't do anything with the QFIL method, because I don't have the NT code for Sprint's LG V50. Do you know any way to handle the problem of NT code and Googl certification? I have vbmeta disabled and the phone is rooted. Thank you
One more question; I flashed the phone to the latest European version 30c downloaded from the LG page. Maybe I needed another version that wouldn't bother me like that?

 

[AsItLies]

Thanks for the reply. I tried to fix the NT code issue with the "cust_path_mapping" archives but to no avail. I can't do anything with the QFIL method, because I don't have the NT code for Sprint's LG V50. Do you know any way to handle the problem of NT code and Googl certification? I have vbmeta disabled and the phone is rooted. Thank you
One more question; I flashed the phone to the latest European version 30c downloaded from the LG page. Maybe I needed another version that wouldn't bother me like that?

for the certification, you need vbmeta disabled with fastboot, did u use fastboot? Also, once disabled, you have to delete cache / data of google play app, then it will work.

the nt code error -- you simply need to put the correct code, it will tell you the one it's looking for when it boots up, in the error, it's that code that goes in cust path mapping.

 

[ArmandBeta]

Pudiste actualizar vía upgrade vía LGUP?

Hola, lograste actualizar por upgrade ?? por particion saca error, por otro lado no pude volver al modo emergencia EDL para hacer todo el proceso

Mod translation via GT: Hi, did you manage to upgrade? by partition it throws an error, on the other hand I couldn't go back to the EDL emergency mode to do the whole process

 

[Vitiok70]

for the certification, you need vbmeta disabled with fastboot, did u use fastboot? Also, once disabled, you have to delete cache / data of google play app, then it will work.

the nt code error -- you simply need to put the correct code, it will tell you the one it's looking for when it boots up, in the error, it's that code that goes in cust path mapping.

As I commented in the previous message I vbmeta disabiltata and of course that by fastboot, in another way I do not even know. I removed the cache and data in Google Play, but now name it sees installed applications, worse than it was, and remained equally uncertified

 

[Vitiok70]

Hi, a question for sprint owners, who did you go to what version of stock did you go to? In your opinion, which version is the most stable and worth putting through crossflash? Thanks

 

[mpena]

Hola, lograste actualizar por upgrade ?? por particion saca error, por otro lado no pude volver al modo emergencia EDL para hacer todo el proceso

Mod translation via GT: Hi, did you manage to upgrade? by partition it throws an error, on the other hand I couldn't go back to the EDL emergency mode to do the whole process

I didn't try. I realized clean installation of new kdz

 

[kazi69]

Should this work on previous models , like G6 ?

 

[AsItLies]

Should this work on previous models , like G6 ?

You should look in the threads for the G6 guides to find threads re crossflashing. This method for the G8 is due to changes LG made way after the G6 was new. The G6 should be much much much easier.

 

[kazi69]

You should look in the threads for the G6 guides to find threads re crossflashing. This method for the G8 is due to changes LG made way after the G6 was new. The G6 should be much much much easier.

Thank you for prompt reply!

 

[igorya79]

hi, i have LG G8 LM-G820 (Verizon)
what am I doing wrong? I get an error:

2022-05-08 17:08:29.287 ***** Working Folder:C:\Users\igor\AppData\Roaming\Qualcomm\QFIL\BHI
2022-05-08 17:08:29.293 Validating Application Configuration
2022-05-08 17:08:29.296 Load APP Configuration
2022-05-08 17:08:29.304 COM:28
2022-05-08 17:08:29.304 PBLDOWNLOADPROTOCOL:0
2022-05-08 17:08:29.304 PROGRAMMER:True
2022-05-08 17:08:29.304 PROGRAMMER:C:\Users\igor\Downloads\LGE SM8150 Firehose.elf
2022-05-08 17:08:29.304 RESETSAHARASTATEMACHINE:False
2022-05-08 17:08:29.304 SAHARAREADSERIALNO:False
2022-05-08 17:08:29.304 SEARCHPATH:C:\Users\igor\Downloads
2022-05-08 17:08:29.304 ACKRAWDATAEVERYNUMPACKETS:False
2022-05-08 17:08:29.304 ACKRAWDATAEVERYNUMPACKETS:100
2022-05-08 17:08:29.304 MAXPAYLOADSIZETOTARGETINBYTES:False
2022-05-08 17:08:29.304 MAXPAYLOADSIZETOTARGETINBYTES:49152
2022-05-08 17:08:29.304 ACTIVEBOOTPARTITION:False
2022-05-08 17:08:29.304 ACTIVEBOOTPARTITION:0
2022-05-08 17:08:29.304 PHYPARTITIONS:False
2022-05-08 17:08:29.304 PHYPARTITIONS:0,1,2,4,5
2022-05-08 17:08:29.304 DEVICETYPE:ufs
2022-05-08 17:08:29.304 PLATFORM:8x26
2022-05-08 17:08:29.304 VALIDATIONMODE:0
2022-05-08 17:08:29.304 RESETAFTERDOWNLOAD:False
2022-05-08 17:08:29.304 SWITCHTOFIREHOSETIMEOUT:30
2022-05-08 17:08:29.304 RESETTIMEOUT:200
2022-05-08 17:08:29.304 RESETDELAYTIME:2
2022-05-08 17:08:29.304 METABUILD:
2022-05-08 17:08:29.304 METABUILD:
2022-05-08 17:08:29.304 FLATBUILDPATH:C:\
2022-05-08 17:08:29.304 FLATBUILDFORCEOVERRIDE:True
2022-05-08 17:08:29.304 QCNPATH:C:\Temp\00000000.qcn
2022-05-08 17:08:29.304 QCNAUTOBACKUPRESTORE:False
2022-05-08 17:08:29.304 SPCCODE:000000
2022-05-08 17:08:29.304 ENABLEMULTISIM:False
2022-05-08 17:08:29.304 AUTOPRESERVEPARTITIONS:False
2022-05-08 17:08:29.304 PARTITIONPRESERVEMODE:0
2022-05-08 17:08:29.304 PRESERVEDPARTITIONS:0
2022-05-08 17:08:29.304 PRESERVEDPARTITIONS:
2022-05-08 17:08:29.304 ERASEALL:False
2022-05-08 17:08:29.304 Load ARG Configuration
2022-05-08 17:08:29.315 Validating Download Configuration
2022-05-08 17:08:29.315 Image Search Path: C:\Users\igor\Downloads
2022-05-08 17:08:29.317 Programmer Path:C:\Users\igor\Downloads\LGE SM8150 Firehose.elf
2022-05-08 17:08:29.421 Process Index:0
2022-05-08 17:08:29.428 Qualcomm Flash Image Loader (QFIL) 2.0.3.5
2022-05-08 17:09:05.210 Start Download
2022-05-08 17:09:05.211 Program Path:C:\Users\igor\Downloads\LGE SM8150 Firehose.elf
2022-05-08 17:09:05.212 ***** Working Folder:C:\Users\igor\AppData\Roaming\Qualcomm\QFIL\COMPORT_28
2022-05-08 17:10:35.231 Binary build date: Jun 25 2019 @ 03:16:15
2022-05-08 17:10:35.231 QSAHARASERVER CALLED LIKE THIS: 'C:\Program Files (x86)\Qualcomm\QPST\bin\QSaharaServer.ex'Current working dir: C:\Users\igor\AppData\Roaming\Qualcomm\QFIL\COMPORT_28
2022-05-08 17:10:35.235 Sahara mappings:
2022-05-08 17:10:35.235 2: amss.mbn
2022-05-08 17:10:35.235 6: apps.mbn
2022-05-08 17:10:35.236 8: dsp1.mbn
2022-05-08 17:10:35.236 10: dbl.mbn
2022-05-08 17:10:35.236 11: osbl.mbn
2022-05-08 17:10:35.236 12: dsp2.mbn
2022-05-08 17:10:35.237 16: efs1.mbn
2022-05-08 17:10:35.237 17: efs2.mbn
2022-05-08 17:10:35.237 20: efs3.mbn
2022-05-08 17:10:35.237 21: sbl1.mbn
2022-05-08 17:10:35.238 22: sbl2.mbn
2022-05-08 17:10:35.238 23: rpm.mbn
2022-05-08 17:10:35.238 25: tz.mbn
2022-05-08 17:10:35.238 28: dsp3.mbn
2022-05-08 17:10:35.239 29: acdb.mbn
2022-05-08 17:10:35.239 30: wdt.mbn
2022-05-08 17:10:35.239 31: mba.mbn
2022-05-08 17:10:35.239 13: C:\Users\igor\Downloads\LGE SM8150 Firehose.elf
2022-05-08 17:10:35.240
2022-05-08 17:10:35.240 17:10:35: ERROR: function: sahara_rx_data:276 Unable to read packet header. Only read 0 bytes.
2022-05-08 17:10:35.240
2022-05-08 17:10:35.241 17:10:35: ERROR: function: sahara_main:982 Sahara protocol error
2022-05-08 17:10:35.241
2022-05-08 17:10:35.241 17:10:35: ERROR: function: main:320 Uploading Image using Sahara protocol failed
2022-05-08 17:10:35.241
2022-05-08 17:10:35.242
2022-05-08 17:10:35.242 Download Fail:Sahara Fail:QSaharaServer Failrocess fail
2022-05-08 17:10:35.245 Finish Get GPT

 

[AsItLies]

hi, i have LG G8 LM-G820 (Verizon)
what am I doing wrong? I get an error:

A sahara error is quite common and can happen for many various reasons, unfortunately.

1) be sure to use a usb 2.0 port, not 3.x port
2) sometimes you have to change windows to allow 'unsigned' drivers to run
3) be sure when the device is in edl mode and connected that it's recognized properly in device manager. If not, load the appropriate driver for it
4) some have had luck just switching to a completely different computer

qfil is older software, but once you get it working, it's fine and very beneficial.

 

[reachforthesky]

Successfully flash a Sprint unlocked G850UM20P to G850QM30B (NAO version). I am on T mobile. I happen to have both versions of LG G8x.
I originally only tried to activate VoLTE on the G850UM20P. I did the minimum by uploading the modded abl_a .bin to both a and b locations. Success . The phone booted up with T-Mobile logo and configured volte, WiFi calling and video calling. The switches were grayed out however. Everything worked except I lost Download mode.
After a few days, I decided to cross flash to G850QM30b, just like the other phone I already have.
I first Qfil/upload the original abl_a and abl_b back and get the download mode back. Then I followed OP's instruction and crossed flash to G850QM30b. It worked except the NTcode error. There were multiple NTcode warnings. But after a couple of reboots, it was down to NTcode:0 error.
I tried the re-flash approachs but LGUP would not allow.
Then I compared SVC/MID info/NT code in both the cross-flashed and the unmodded . The cross flashed one has 0,fff,fff,ffffffff,ffffffff,ff vs 1,fff,fff,ffffffff,ffffffff,84 in the unmodded one.
Also FTMmodelname was blank vs QNA in the unmodded one. So I made two edit and the NTcode:0 warning is gone. Not sure if I needed to edit FTMmodelname.

Oh yes, the cross-flashed phone has volte and WiFi calling, but the switches were grayed out. I switched back to the the cross-flashed phone as my daily driver. Will see what happen when T-Mobile shut down 3G on May 30 when Volte is needed.


BTW, a big thank you to Netmsm for being so helpful to so many.

 

[Saddique ahamed]

Some pictures of flashing my LMG820UM, unlocked from Sprint, into OPEN_CA 20j. In normal mode you cannot flash SPR_US to OPEN_CA which is shown in the pictures. But using this thread instruction it allows to flash, even it asks to change the model from SPR_US to OPEN_CA
Until performing the instructions, it shows the "id: 2(SPR_US)" on the Download Mode screen, but after that it cannot recognize the phone model id and shows "id: 0()"
Have fun ^_^

Lm v450PM (v50) same process?

 

[netmsm]

Lm v450PM (v50) same process?

Not sure! You may give it a try and inform us =)

 

[Vitiok70]

Lm v450PM (v50) такой же процесс?

Yes

 

[mateus.sc]

@netmsm hello! hope this message find you doing well.
Fixed <3 THANKS

 

[reachforthesky]

I have 2 used unlocked LG V40 from eBay; V405UA20g and V405UA20e. I cross-flashed them to V405QA20e. There were no gain expected because the original 2 already have volte and wifi-calling on T-Mobile. The after-flashed "open" version have the same things. But I "lost" the serial numbers and "gained" fastboot no command error on both phones. I look up the saved ftm.bin and found no serial number (may be the seller had done something to the phone). Lesson: people should write down the serial number before flashing.
Q:
1. How can I "find" the serial number?
2. How to fix the fastboot no command problem?

Edit: I've cross flashed a LG G8x from G850UA A10 to G850QA A11 with serial number and fastboot function intact.

 

[netmsm]

@netmsm hello! hope this message find you doing well.
Fixed <3 THANKS

Hellooo