Canon EOS REBEL T7i Instruction Manual page 40

Installing and Removing the Card
The number of possible shots varies depending on the remaining

capacity of the card, image-recording quality, ISO speed, etc.
Setting [z1: Release shutter without card] to [Disable] will prevent

you from shooting without a card, forgetting to install it (p.312).
Removing the Card
Access lamp
40
Open the cover.
1
Set the power switch to <2>.

Check that the access lamp is off,

then open the cover.
If [Recording...] is displayed, close

the cover.
Remove the card.
2
Gently push in the card, then let it go

to eject.
Pull the card straight out, then close

the cover.