S pen won’t connect - maybe loose motherboard connection?

Where can I check if the spen is properly connected to motherboard? My spen air action won’t connect at all after resetting and factory reset. This spen is replacement from Samsung.

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0