CW Services Ltd - Nikon D80 that displays 'Err' upon release ..... this is the fix - contacts on the 'phase switch' that tells the camera when it has completed a charge /
SOLVED: "err" message on the display, the answer is not clear - Nikon D80 - iFixit
Fixing a Nikon D80 with err problem | ClubSNAP Photography Community
Nikon D80 "ERR" Repair Service (aperture unit error fix) | eBay
Nikon D80 error message when trying to take a picture. Any solutions? : r/ Nikon
Nikon DSLR Error Codes. Know Possible Ways to Fix Errors