How to Fix Blinking "Err" Error on Nikon DSLR Cameras
Gadgethub Camera Repair Services - Nikon D90 "Err" / "error" fixed and solved! 😎👍 It is a Nikon d90 common problem, when mirror stucks up it will show an err like this.
Nikon DSLR Error Codes. Know Possible Ways to Fix Errors