Mate 9 charging, screen toggles off/on with wallpaper pics

[GentleMuser]

Just got this Mate 9. When connected to a charger the screen will not stay dark. It toggles between off and a new wallpaper image about every 5-7 seconds.
If a setting I'm not finding it...

 

[Gayle Lynn]

A charger, or one included?

Did you let it recharge before setting up?
Did it always act this way?

It normally does a quick charge when plugged in and battery down.
There would also be "bubbles" in green.

International version? USA?

Do you have adapter for your current?

Not all USBC cables are the same or reliable but Huwei one included should.

 

[GentleMuser]

Good gravy at the questions!! And amazingly generic. Not a newb .....
Original Mate 9 charger then later a generic charger just to see.
Got the phone used. This is after a factory reset.
USA version.