Canon EOS Elan 7ne 35mm SLR Camera "400d switch" Questions

switch on the camera. Works for me every time. Good luck. Camera type Canon 400D. on my cannon 400d found the error code 99,refered to the lens not the camera Have had the same problem when using a 75

...400D SLR - Err 99 I have tried all the suggested fixes to no avail. when i put the battery/ies in (have tried with and without the grip) the camera seems to fire up as normal but as soon as i press ...