streaming stick: no signal detected

Welcome, betherob.

Thanks for posting here in the Roku Community!

Thank you for bringing this matter to our attention. We understand the importance of resolving it promptly and want to assure you that we are committed to assisting you in resuming your streaming activities without delay.

You can try the following steps below to see if this resolves the problem you're experiencing: 

1. You have the wrong input (source) selected on your TV
   This is extremely common and an easy mistake to make. Most TVs have several video inputs on the back or side of the TV that are used for connecting different devices, such as a cable box, gaming console, and, of course, a Roku player. You must select the input (sometimes referred to as source) that matches the one to which you have the Roku player connected. Look to see which input you have the Roku player connected to. The video connector will be labeled with the input name, e.g., HDMI 1, HDMI 2, AUX, VIDEO IN 1, etc.
2. The video cable is not connected correctly, or the cable is faulty
   • Check that the video cable is firmly connected to the back of your Roku player and the HDMI or composite connector on the TV. If you have a Roku Streaming Stick, ensure it is firmly connected to the HDMI connector on your TV.
   • If you can, check to see if you have a faulty cable by connecting your Roku player with a different cable.
3. There is a problem with the TV.
   • If you can, try connecting the Roku player to a different input on the TV to see if the problem is with the TV's connector.
   • If you can, try connecting the Roku player to a different television to see if the problem is with your Roku player or the TV.
4. Enable CEC or turn off auto power savings.
   • If you do not see a picture after pressing a button on your Roku remote, it is possible that your player cannot "wake up" your TV over the HDMI connection. To fix this, make sure that HDMI-CEC is enabled on your TV. You can turn off auto power savings if you prefer that your player never enter low power mode.
5. Is there a problem with the USB power adaptor, or does the adaptor not meet the requirements?
   • Your Roku player may not receive enough power, even if the power light is on. This happens sometimes if you connect your Roku player through a third-party device with a USB/AC power adaptor that does not meet more recent USB standards. Try a different power adaptor, or plug your Roku player directly into a power source. For more information, learn what to do if the red light is flashing or you see a "low-power" warning.

For more troubleshooting tips, check out this support FAQ on what to do if you cannot see the picture from your Roku® streaming player on your TV.

Let us know if this works for you. 

All the best,
Emman