After opening some Huawei devices with older generation of Kirin 659, today I was able to bypass the lock of a Huawei Mate 20 Pro LYA-L29 Kirin 980 based device with Android 9 and do a decrypted full filesystem acquisition.
The FRP was on, the phone was locked, EMUI version was 9.1.0, the Android patch level was 2019.06.05. Nothing on the device was altered or modified, no flashing, no boxes used, no dismantle of the device, no gimmicks, the processing was 100% safe.
If anybody needs similar unlock/acquisition service, feel free to contact me. The price for processing a device is netto 1000 EUR and the processing time can take up to 7 weeks. Payment has to be done only on success.
I have to kindly ask the moderators to let this information public, because this is vital in many cases involving Kirin 980 based devices and from what I know, nobody else has a solution for it.
Maybe Cellebrite Advanced Services can do it, but I'm not sure either...
Comments are welcome!
I tried the same method with secure startup enabled, it also worked!