EMUI 9.1 版本root相關資訊

mate 9：9.1.0.252

https://forum.xda-developers.com/mate-9/help/9-1-0-252-c432e7r1p8-root-t3958071

mate 10：9.1.300

https://forum.xda-developers.com/mate-10/how-to/guide-magisk-root-mate-10-pro-t3886967

下載原廠rom的好地方
https://pro-teammt.ru/en/online-firmware-database/