Canon EOS R50 Mirrorless Camera (White) - Manual (Page 774)

Problems with the multi-function shoe
A message was displayed on the screen when I attached an accessory.
If [ Communication error Reattach accessory ] is displayed, reattach the accessory. In
case this message is displayed again after reattachment, make sure the terminals of the
multi-function shoe and accessory are clean and dry. If you cannot remove the dirt or
moisture, contact a Canon Service Center.
If [
Accessory unavailable status ] is displayed, check the terminals of the multi-function
shoe and accessory and make sure the accessory is not damaged.
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