11-10-2019 10:09 AM
EOS 500D (Rebel). When I try to select built in flash, I get the error message saying not available - external flash attached, when there is no external flash attached. The external flash works fine. Can anyone help please?
11-10-2019 10:25 AM - edited 11-10-2019 10:30 AM
There is a small microswitch sensor under the hot shoe rails which senses when a flash is attached. It is there to prevent the built-in flash from popping up when an external flash is attached. It must be sticking or malfunctioning.
You could try try cleaning the Hotshoe rails.