Mate 10 unknown error (375)

[mencargo]

I'm getting an error trying to get the bootloader code:

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DC - Unlocker 2 Client 1.00.1403

Detecting phone :

selection :
manufacturer - Huawei phones
model - Huawei HiSilicon Kirin Android phone (new)

Selected Applications port COM5

Model : Huawei HiSilicon Kirin Android phone (new)
Serial NR. : 2WT7N18208005425
Firmware : System 8.0.0.046(0J5N)

================================================== =================

Reading bootloader code...

unknown error (375)

[mencargo]

I noticed that there are a lot of refunds for this, saying that it doesn't work for Android 8.0
However, I purchased credits because I found this video in your website:

https://www.youtube.com/watch?v=lcZg3uMZx48

Specifying "Huawei Mate 10 (ALP-) Bootloader unlock code", and I have a Huawei Mate 10 ALP-L09 8.0.0.136 (C212)

And the video shows a device with

Firmware: System 8.0.0.38(00B1)

That seems pretty close to mine, can we flash an older firmware to get it?
Please tell me there's a way!

[Valdemaras]

If you manage to downgrade it somehow then it will work most likely, but now, 375 error shows that it runs new sec patch and reading code from it does not work.