Writing this just in case it might help. My S8+ had started to lose contact with the charging cable as well within about a year. I thought it was wearing out be

Writing this just in case it might help. My S8+ had started to lose contact with the charging cable as well within about a year. I thought it was wearing out because I never had any other phone's connector be clogged up, but it really was pocket lint that jammed into the connector. Once I cleaned it with the needle it was like new and very grippy. Since then I've had another friend make the same assumption and "fix" his port like that, so do give it a try if your port does not "hold" the cable as it should.