Start with the simple checks. Change one thing at a time so you can tell which step helped.
The TV may be on another input, or the streaming device may not be receiving power. First, note what changed recently and whether the same issue affects another device. This helps separate a device-specific fault from a wider network or service issue.
Troubleshooting steps
Check the basics
Use the TV remote to select the HDMI input where the device is connected. After each change, repeat the action that originally failed and give the device a moment to reconnect or refresh.
Review the settings
Check that the streaming device’s power cable and adapter are seated correctly. After each change, repeat the action that originally failed and give the device a moment to reconnect or refresh.
Test one change
Reconnect the HDMI plug and try another supported port if available. After each change, repeat the action that originally failed and give the device a moment to reconnect or refresh.
Confirm the result
Restart the TV and device after confirming the correct input. After each change, repeat the action that originally failed and give the device a moment to reconnect or refresh.
Helpful note
If using an HDMI extension or receiver, test a direct connection where practical.
When to get more help
If these checks do not resolve the issue, contact the relevant device maker, internet provider or app support team. Include the exact model, software version, any error message, what you have already tried and when the problem began. Avoid sharing passwords, verification codes or private account details in a public forum.
For equipment that is hot, damaged, wet or making unusual electrical sounds, stop using it and seek qualified support. Do not open power supplies, batteries or mains-powered equipment.
Settings and menu names vary by model and software version. Use the manufacturer's current instructions for device-specific steps, and back up important files before making changes that could remove data.