RPi 3 locks up with SKR Mini E3 V3

This is similar (not enough details to say if it is the same) as my issue. The solution that worked for me was:

adding the line

dtoverlay=dwc2

to the end of the /boot/firmware/config.txt then reboot.

The long original thread:

https://klipper.discourse.group/t/help-klipper-crashes-mid-print/24434/44?u=michaelbrock