You can now download the official TWRP recovery for Huawei Mate 10 and Huawei Honor View 10. Flashing TWRP will only work on a device whose bootloader is unlocked. For those whose phones are rooted, you can install TWRP recovery by simply downloading the official app from the Google Play Store and flashing the recovery on your Mate 10 Pro or View 10. These files are only for the Huawei Mate 10 Pro and Honor View 10.
However, if your phone isn’t rooted, you’ll have to take the fastboot channel in order to install TWRP.