The HDMI error on your Hisense Smart means the TV cannot detect a valid video or audio signal from a device plugged into one of its HDMI ports. Reseating the cable and checking the input source usually clears it in a few minutes.

Error code HDMI
Meaning No signal or a broken handshake between the Hisense TV and a connected HDMI device
Severity Low — usually a cable, port, or settings issue rather than a hardware fault
Time to fix 5–20 minutes
Tools needed None, but a spare HDMI cable is useful

What the HDMI error means

Hisense Smart TVs display an HDMI error, “No Signal” message, or a blank screen on that input when the TV and the connected device (games console, soundbar, cable box, laptop) fail to complete the HDMI handshake. This handshake exchanges resolution, HDCP copyright, and audio format information, and if any part of it fails the TV shows no picture even though the device is switched on.

This is one of the most common issues reported alongside other Hisense Tv ERROR Error Code: Causes and Fixes problems, and it almost always traces back to a cable, port, or setting rather than a faulty screen.

Common causes

  • Loose, damaged, or low-quality HDMI cable
  • Wrong input source selected on the TV remote
  • Connected device not powered on or in standby mode
  • HDCP handshake failure between TV and source device
  • Outdated TV firmware or a temporary software glitch
  • Faulty or worn HDMI port on the TV or the source device

How to fix the HDMI error

  1. Check the cable and connection: Unplug the HDMI cable from both ends, inspect it for damage, and push it back in firmly until it clicks or feels secure.
  2. Select the correct input: Press the Source or Input button on the remote and choose the exact HDMI port your device is plugged into (e.g. HDMI 1, 2, or 3).
  3. Power cycle everything: Turn off the TV and the connected device, unplug both from the mains for 60 seconds, then plug back in and switch on the TV first, then the device.
  4. Try a different HDMI port or cable: Move the cable to another HDMI port on the TV, or swap in a known-working cable, to rule out a faulty port or lead.
  5. Update TV firmware: Go to Settings > Support > Software Update and install any available update, as this can fix HDCP and handshake bugs.
  6. Test the source device on another screen: If possible, connect the device to a different TV or monitor to confirm whether the fault lies with the Hisense TV or the source unit itself.

FAQ

Why does my Hisense TV say “No Signal” on HDMI even though the device is on?
This usually means the HDMI handshake failed. Unplug and reconnect the cable, then power cycle both the TV and the connected device.

Can a bad HDMI cable really cause this error?
Yes. Cheap, damaged, or overly long cables often fail to carry a stable signal, especially with 4K or HDR content, so swapping the cable is a quick and reliable test.

Do I need to replace my TV if HDMI still doesn’t work after troubleshooting?
Not necessarily. Try every port and cable combination first, similar to solutions used for Panasonic Blu-ray HDMI Error Code: Causes and Fixes; if no port works with any device, the TV’s HDMI board may need professional repair.