Canon EOS 90D Advanced User's Manual page 607

Operation Problems
I cannot change the setting with < 6 >, < 5 >, < j >, < 9 >, or
< d >.
Set the < R > switch downward (lock release) ( = 60).

Check the [ 5 : Multi function lock] setting ( = 545).

Touch operation is not possible.
Make sure [ 5 : Touch control] is set to [Standard] or [Sensitive]

( = 521).
A camera button or dial does not work as expected.
Check these settings: [ 8 : C.Fn II-7: Select AF area selec. mode],

[ 8 : C.Fn II-9: AF area selection method], and [ 8 : Custom Controls]
( = 563, = 564, = 571).
Display Problems
The menu screen shows fewer tabs and items.
Certain tabs and options do not appear in Basic Zone or for Live View

shooting and movie recording.
The display starts with [ 9 ] My Menu, or the [ 9 ] tab alone is
displayed.
[Menu display] on the [ 9 ] tab is set to [Display from My Menu tab] or

[Display only My Menu tab]. Set [Normal display] ( = 587).
The fi le name's fi rst character is an underscore ("_").
Set [ z : Color space] to [sRGB]. If [Adobe RGB] is set, the fi rst

character will be an underscore ( = 229).
Troubleshooting Guide
607