Check the phone port That nothing is in it Like pocket lint / fluff Stopping connection Otherwise port may have worn Loose when making connections With charging connector
Same happened on my Note 9 about six weeks ago GlivGluv following a software update. The charging port stopped working totally and a constant 'moisture detected' warning came up. I cleared the cache partition and dried the port gently using a hairdryer and left it in the sun etc. but it was dead. Luckily I have a good wireless charger so I used this to charge the device. No real problem. About 5 weeks later another software update dropped and after clearing the cache partition on this one suddenly my port was active again. Perfectly. Did this problem start for you after a software update GlivGluv?.. Even if it didn't a future software update could still rectify the problem for you. 👍👍
If its within 24 months warranty and you purchased it new... you could be eligible for a warranty repair provided that there is no damage to the device anywhere. I hope you get it sorted anyway.
Yeah... just try to back up all your data and media files and make a appointment at your nearest Samsung authorised repair centre or if its purchased from your network they have their own warranty procedures. You should be okay hopefully.
