https://www.att.com/buy/accessories/Specialty-Items/apple-smart-keyboard-folio-12-9-inch-ipad-pro-4th-generation.html
The iPad Pro 12.9-inch Smart Keyboard Folio offers a full-size keyboard with responsive keys, plus front and back protection in a slim, lightweight design.
smart keyboard folioipad proappleinch
https://support.apple.com/en-mz/108983
Find out what to do if your Magic Keyboard, Magic Keyboard Folio, Smart Keyboard, or Smart Keyboard Folio doesn't respond to your typing or trackpad input.
if youcan tconnectipadmagic