My Samsung Galaxy S9 displayed a notice that a USB upgrade had been installed. The next time I plugged in in on its charging stand, it started beeping constantly and switching between Charging/Not Charging status. I turned off the Charging Sound in preferences, but it's still switching between Charging (displaying a lightning bolt in the battery) and not charging (no lighgning bolt). Each time it dims the display when not charging and brightens it again when the lightning bolt reappears.
How to I stop this? Or how do I un-install this buggy software upgrade?
Solved! Go to Solution.
The battery was wearing down so I plugged it into a fast charger (Anker battery pack) and it stopped beeping. After it charged, I plugged it back in to the wall charger and did not have a problem.