The sensor doesn’t only detect moisture in the charge port but also in other parts of the phone. If you knew that the phone got wet at some point, then there’s always a possibility that the water found its way into your device and that could be the reason why you keep on getting the ‘moisture detected’ error. The best thing to confirm this is to check your Galaxy Liquid Damage Indicator (LDI):
Remove the SIM card tray.Look into the SIM slot to find a small sticker.If the sticker is white, then your phone is safe from liquid damage but if the sticker became red, pink or purple, then it positive that your device has liquid damage. In this case, bring the phone back to the store.
some other steps you must try. 1.Try with new data cable and charger 2. physically clean the USB port by different ways that you you can google. 3.Try bypassing the ‘moisture detected’ error. 4. connect your charger to the phone .
The warning will pop up as soon as the phone is connected to the charger and the charging process stopped.This time, reboot your phone while it’s connected to the charger.Your phone may continue charging without being greeted by the warning after the reboot.
