Re: menu keeps appearing on the screen every couple minutes
What does the menu SAY? This might be a menu for a demonstration mode that can be enabled for demo units in a store.
Roku TVs (not other Roku devices) have a store/demo mode that can be selected during initial set up. There is no provision in the user interface to change this later. To get out of store mode you do a factory reset (Settings > System > Advanced system settings > Factory reset) and set up again from scratch. When asked, select home use instead of store/demo.
Roku Community Streaming Expert I am not a Roku employee, only a user like you. Do not ask me support questions via private message -- post them publicly to the Community where others may benefit as well.
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Streaming Stick 4K+ 3821 | Streaming Stick+ 3810 | TCL Roku TV 43S245/C107X | Streaming Stick 3600