Huawei Nova CAN-L11 TWRP and root is now available. This rooting method has been tested and verified by ministry of solutions. Rooting gives you access to system partition which allows you to modify phone according to your choice. There are also some drawbacks of rooting your phone, like some banking apps may not work on rooted devices.

Disclaimer

Phone warranty void if rooted

Everything you do at your own risk

Not tested on CAN-L01 (it should work)

This method is only tested on EMUI 5 (Android 7)

Rooting Guide:

• Backup all important data from the phone
• You need a micro SD card (any capacity).
• Unlock the bootloader of your phone (How to unlock?)
• Download the latest Magisk manager from THIS LINK and install it on your phone
• Then download Magisk from THIS LINK and copy it to your SD card.
• Then download TWRP recovery from THIS LINK
• Extract the TWRP zip file, and open MAF32.exe
• Connect the phone in fastboot mode and type ” fastboot flash recovery recovery.img ” and press enter
• After a successful flash disconnect the phone from pc then hold the volume up and power the buttons, and keep holding until TWRP recovery appears.
• Swipe to allow modification
• Then tap on install > select storage > Choose micro sd card > press ok
• Then tap on Magisk-v18.1.zip and swipe to flash, if flash successfully reboot your phone.
• Done

Warning : Do not update/Reset your phone while its rooted

source: 4pda