Canon EOS R50 Mirrorless Camera (White) - Manual (Page 168)

Clearing Flash Function Settings/C.Fn Settings
1.
Select [Clear settings].
2.
Select the settings to be cleared.
Select [ Clear built-in flash set. ], [ Clear external flash set. ], or [ Clear
ext. flash C.Fn set. ].
Select [ OK ] on the confirmation screen to clear all flash settings or
Custom Function settings.
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