Removing Google Account on the phone will erase all of your data.
All described operations you are doing at your own risk.
If want saves your data do a backup before start.
The battery should be at least 50% charged before the start.
Google Account verification bypass
Turn on HUAWEI P20 Pro by the Power button.
Install downloaded drivers to the computer.
Unpack FRP Unlocker on the computer.
Wait for the Welcome screen and select your language.
Choose next Emergency call button, on next screen write code *#*#2846579#*#* and wait for service menu.
Select Background Settings, next AP LOG Settings.
Here choose an Open option and then tap Close button.