How to open control pad to replace batteries?

My Velux Integra Vs/VSE control pad wont work, the screen is blank, how can I open it to replace the batteries?
Anne, December 2022


done
Manual. See p42
https://velcdn.azureedge.net/-/media/marketing/au/downloads/installation%20instructions/klr_200_controller_instruction_booklet.pdf

Ekdn, December 2022
link Click here to see other fixes for Velux.