Perhaps a prep-guide containing things like.
Ensure phone is reasonably charged.
Ensure device has the following things on it:
Like uuu 
etcetera.
-
Tools you’ll need such as a tool to open the back case to remove/seat the battery. (best how-to I could find)
For nail-biters, a solid piece of plastic such as a guitar pick. -
A cable with USB-A on one end and USB-C on the other.
.
Just a idea is all.