You put a lens on your camera body, and you get error message “Check status of your lens”. You take lens off, check everything, remount the lens, switch on camera, and get the error again. *worry*
Get another camera body, mount lens on that one, and it works just fine. *panicky feeling*. Mount lens on 1st camera body… “Check status of your lens” (panic intensifies) Camera body less than 6 months old! 😮
Deep breaths, put on magnifying spectacles, and inspect camera. All good, and other lens works on it. Inspect lens… It’s amazing what one small smidge of pet fur can do. Cleaned off, lens working, panic abated.