Roku setup

[JR313]

nothing comes on & other devices or remote cannot find it. serial: S07R514MTVVT Model: 3940X

can somebody please help?

[RokuERey]

Hi @JR313,

Welcome to the Roku Community!

We are grateful that you contacted us on this, and we are willing to assist. Could you let us know when you first noticed the problem? Have you attempted any troubleshooting? If so, what failed?

Please tell us more about this so that we can help you even better.

Regards,

Rey

[Strega2]

The first thing that comes to mind with not working at all is power.  So if you have another AC to USB power adapter that supplies at least an amp, maybe try that?