What would cause a Galaxy S9 try o just shut down indefinitely.Will not do anything such as restart,reset,or show charging status.Will not function at all.Jist randomly quit.?
I agree with the above. I'd start the process of elimination starting from the cheapest solution first. Try switching chargers first. 2nd check your charging port to make sure your connection is clean and clear and the port isnt damaged or loose visually. Then I would have it serviced.