Is that text file copied directly from the SD card?
It's unusual if so with all the previous success listed.
I think you're supposed to delete the file from the card after checking it, but obviously saving them all to another place is fine.
But back to your problem.
You hit a bush and it wouldn't restart.
Why would updating the firmware fix that?
There's a few things could be damaged but trying to update firmware when it won't run won't have helped any diagnosis.
Something that can happen in a minor jolt is the mechanical movement sensor inside gets stuck.
A sharp tap to the case will often free it. It's more likely something has come adrift inside though.
There are a few plugs have been known to break loose, or a solder connection cracked off.
Getting inside the P3 is more difficult than previous versions but not impossible.
It could be worth looking for anything obviously not in place.