I have just updated my huawei mate 20 pro to 188.8.131.520 and the phone is not working probably anymore. It wont connect to WiFi, games lag a lot and different apps or the settings menu stops responding. Yesterday it restarted the phone all the time and asked for the pin to access the phone after each restart and sometimes when it had not been restarted.
I have reset it too factory settings and it does not work. Same problems still occur.