You will need to make sure that the device itself and the USB use the same voltage and a similar amperage.

If you have any problems with the device not powering up I advise that you first ensure that the connectors are firmly in place, if this doesn’t work I advise checking the power requirements on the Smart TV stick itself and the power delivered by the TV USB.

If it doesn't work fear not, there are a few things you can try as it be something simple. Switch over to HDMI input that you have connected to stick into the TV and connect it your WIFI, assuming you have a half decent WIFI signal this will be all you need to do. To connect simply install the USB lead between the device and the TV, if the TV is wall mounted you can usually hide the TV device behind the TV itself as most of these are Bluetooth compatible meaning that they do not require line of sight. This will work for Kodi Sticks, Now TV sticks, Roku as well as Google Chromecast and Amazon Firesticks. Usually it’s just a case of connecting a USB lead with appropriate connectors on either end to the TV and stick and you’re ready to go. Most Smart TV Sticks can be powered directly off of the TV provided that you have a Smart TV stick that the stick itself and the TV have USB connections on them (most new flat-screen TV’s have a few). Yes Amazon Firetsick/ Google Chromecast Can Be Powered Off TV If you want to connect a Smart TV stick like an Amazon Firestick, Chromecast, Now TV, Kodi stick etc to your TV and wanted to know whether the stick can be powered off of one of the USB ports on the TV read on for the information that your require. You may be wondering if it is possible to power the Smart TV stick off of the TV itself, which can be really helpful if you have your TV already mounted on the wall and no extra electrical outlets near the TV. Most of these however come with a mini USB connection one end and standard USB connection the other. Most smart TV sticks that allow non-Smart TV’s to become Smart or allow you to watch/ stream extra content online come with a power supply to connect it into a mains electrical socket. Can I Power Firestick/ Chromecast/ Kodi Smart TV Stick off TV USB?

Kodi for usb stick and smart tv