Hi there and welcome
Is it still turning on and just not charging or it does not turn on at all?
Please Remove the charger from the garmin and hold the power button to off for 60 seconds.
Release, then connect the charger and try to turn on the unit.
Let me know the results please
ok, download and install Garmin Express on your computer from here
Then once installed, open it and connect the Garmin to the computer
Tell me what then happens please
ok, now we did my steps, connect it again and tell me if it indicates any updates need to be done please
I want you to try to reset it please
To do this
Can you complete these steps?
how did you go with my last instructions?