If you use not the new camera, then don't forget to reset the camera to the default settings. Guide for the M50.
Important! Camera must have a memory card and to be set in M mode.
Check that the camera is turned on, and it saves JPEG files (not RAW).
Our default settings for the camera are:
Shutter speed 1/100
Aperture 3.5
ISO 600
White Balance 4500