Phone behaves weirdly while charging I recently got my Moto G4 Plus and it has got a turbo charger too. On charging it using a specific plug/socket, the phone just starts tapping randomly. When charging through another point, it works fine. Why? Is it the current issue?
While there is an accepted answer, it is worth pointing out that this behaviour is only observed by OP in one particular charging point and is fine otherwise

This is probably because that point has grounding or other electrical issues, which is leading to this behaviour also called ghost touches. Googling for that would lead you to similar conclusions. I have often experienced this traveling in Indian trains, where the charging points are apparently not well regulated. Andrew (thanks) has located a proper electrical reasoning for this in comments