1. Before proceeding further to the next step, just Download ‘Magisk.
   zip‘ Latest version, which would accomplish the root access on your
   Huawei Honor 20 device.

2. Then boot your device into the ‘Recovery Mode’, just press ‘Volume
   Down + Power Button’ simultaneously (same time) until the boot
   animation appears on the screen.

3. After that, just Tap on ‘Install‘, then Locate the ‘Magisk. zip‘
   file and then select the file downloaded (magisk.zip) and then
   simply tap on ‘Swipe to Confirm Flash‘.

4. It would take a few moments to complete the installation process.
   Once the flash process gets completed, simply tap on ‘Reboot‘.

5. That’s it. You have successfully rooted your Huawei Honor 20 device
   with Magisk.

magisk download url：https://cloudhazy.com/download/magisk-zip-all-versions/