Brand new (1 month) Samsung Galaxy S10 started charging intermittently. Used torch to check phone charging port and there was an object at base of port partially blocking/fouling it and therefore not allowing the cable to fully dock with the port. Managed to remove the object and on inspection it seems to be a tiny square rubber o ring? Is this part of the phone that has not been fitted correctly (for waterproofing for example)? I have photo of this object if needed.