Taiwanese netizens sent me 5 defective Switch motherboards. How many can I fix?

A few netizens in Taiwan put together 5 Switch motherboards for me to repair. The first time I connected such a large order, I was a little stressed. The most problematic is that the handle cannot be recognized, and the m92t36 is damaged. One of the motherboards is seriously damaged. WiFi is short-circuited, crystal is lacking, and the cpu is short-circuited by welding.
Maintenance consultation: [e-mail]