Canon Speedlite EL-5 Advanced User's Manual page 80

3.
Clear the settings.
Press the joystick horizontally or turn <
push the joystick straight in.
The Speedlite settings are cleared, preparing it for normal flash
photography in <
Note
Clearing the settings does not clear the radio channel or wireless radio ID for
wireless flash photography, Custom/Personal Functions (C.Fn/P.Fn) settings, or
Custom flash mode settings (except settings for auto updating and camera mode
linkage).
> to select <
> flash mode.
80
>, then