Huawei Clone Mate 20 Pro Flash File All Version Firmware | EasyFlashFile
I have written a guide on how to downgrade Huawei phones to previous EMUI versions. If I am missing any method that is more efficient in downgrading feel free to comment. :
Huawei Mate 20 Pro (LYA-L29) downgrade to 9.1 · Issue #151 · ProfessorJTJ/HISuite-Proxy · GitHub
Huawei Mate 10 Lite RNE-L01 Downgrade Firmware (Wind-Italy) - Ministry Of Solutions