I have had my 90D for about 5 months now without issue until today. My issue is that the camera now only works in full auto mode. The top buttons (AF, DRIVE, ISO, etc) only work in full auto. Autofocus only works in full auto. I can only manage the display in full auto and access the menu settings through full auto. The shutter still actuates in all modes. I can use the joystick to move the autofocus point in any non-auto mode. I can change the aperture and the shutter speed using the wheel and the dial. I have tried almost everything. Swapped to fully charged canon batteries, changed lenses, and changed the SD card but there is still nothing working.
I have read on other issues that have occurred and they are not issues that are happening to me. The back button autofocus does not work on any mode. I have turned off the camera, removed the battery, flipped the switch to on, depressed the shutter for 10 seconds followed by the image select button for 10 seconds, turned off the camera, and reinserted the battery and there has been no change. I do not have the tools to dismantle the camera.
