Unable to get Smart Keyboard to work with my iPad
Problem getting Smart Keyboard to work on iPad
Smart Keyboard for iPad Pro 9.7-Inch
Apple Event: May 7th at 7 am PT
Problem getting Smart Keyboard to work on iPad
Smart Keyboard for iPad Pro 9.7-Inch
"If your iPad Pro doesn't detect your Smart Keyboard or you see an "Accessory not supported" alert on your iPad Pro, make sure there's no debris or plastic covering on the Smart Connector pins on the keyboard or the Smart Connector on the iPad Pro. Also, try these steps:
Ref: Use your Smart Keyboard with iPad Pro - Apple Support
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Unable to get Smart Keyboard to work with my iPad