Smart Keyboard not working

I have the iPad Pro since it first came out. I bought it together with the pencil and the Smart Keyboard. The SK has NOT worked for a while ... and since I use the iPad mostly for applications that don’t require the SK I assumed it would eventually work again. I just read a few posts here from back in 2017 and realized that others were having the same issue; it also appears that the IOS upgrades might have caused this to happen. Does anyone have an answer that could help me to fix this SK? Do I need to bring it to the store to get help? Any ideas would be appreciated.

thank you,

MGT