Huawei VOG-L29 ERROR downgrade 10 to 9.1

[dieguito52c]

(bootloader) VOG-L29
OKAY [ 0.006s]
finished. total time: 0.006s
Reading Mobile Version Info
...
(bootloader) :VOG-L29 10.0.0.178(C605E19R1P3)
OKAY [ 0.005s]
finished. total time: 0.005s
Reading Mobile Bootloader Lock Info
...
(bootloader) FB LockState: LOCKED
(bootloader) USER LockState: LOCKED
OKAY [ 0.001s]
finished. total time: 0.001s
Reading Mobile Battery Info
...
(bootloader) 3693mv
OKAY [ 0.008s]
finished. total time: 0.008s
Reading Mobile vendor and country Info
vendorcountry: hw/la
finished. total time: 0.014s
all is done



good night support ... it is the first time that I try to degrade this huawei vog-l29 model ... I already made a verlist of the 6 parts of the base, cust and preloader

I am using this firmware in 9.1 for this downgrade job
Huawei P30 Pro VOG-L29 hw la VOGUE-L29D 9.1.0.185(C605E4R1P5) Firmware 9.0.0 r3 EMUI9.1.0 05015THK

the firmware has the same cust and compilation to work it in safe mode, but I vote error when passing the firmware parts

Please login to view image

I would appreciate your prompt response. support or colleagues who have already done this work

 

[tomelich]

bro can you help me how to create the .app_verlist files
I only created the 1st file, but the others I can not give me error.
Do I have to create one by one?
just by reading one, do others create automatically?

 

[chiposh]

From which firmware you created verlist? EMUI 10.0.0.178 or EMUI 9.1.0.185?