Logitech Slim Folio Pro Cover for iPad

My Logitech Slim Folio Pro Cover for Ipad Pro was purchased in April 2020 & until yesterday worked well when there was no bluetooth connection. I tried to again pair the devices, I received a Bluetooth Pairing request and advised to enter the included the 6 number code on "SLIM FOLIO PRO". When this was attempted the Logitech Slim Folio Pro Cover illuminated but the code couldn't be entered. I then attempted this approach on a number of occasions without success. I then tried a number of suggestions from the Logitech forum including turning my bluetooth connection off/on, then the iPad off & back on, disconnected the Cover from the iPad but still can't pair the Logitech cover with my iPad. Any suggestions would be appreciated.