How to Install TWRP Recovery and Root Huawei Mate 9
How to do a hard reset on HUAWEI Mate 9 Pro? - HardReset.info
How To Recover Deleted Data From Huawei Mate 9/Mate 9 Pro
Come resettare Huawei Mate 9 - Ripristina ed elimina i dati
Come resettare Huawei Mate 9 - Ripristina ed elimina i dati
Please help! This Huawei Mate 9 suddenly stopped working.... We could open this screen, but only the first option is available. But the download doesn't finish... What can I do? : r/phonerepair
Huawei Mate 9 - How to do a Master Reset - YouTube