Why does ClonerAlliance UHD Halo show “No Signal”?¶

A “No Signal” message on your TV means the UHD Halo is not detecting a valid video input. This article covers the common causes and how to fix them.

Common Causes¶

Cable not connected or loose – The HDMI or Type-C cable between the source device and the UHD Halo is not firmly connected.
Source device not powered on – The video source (game console, set-top box, etc.) is off or not outputting a signal.
Resolution handshake in progress – When a new source is connected or the resolution changes, a brief black screen (1–3 seconds) is normal.
Unsupported resolution – The source device is outputting a resolution not supported by the UHD Halo (e.g., 4K@120fps). The maximum supported input is 4K@60fps.

If the top HALO ring LED is off, no input signal is being detected.
If the LED flickers briefly and then stays off, the signal may have been detected momentarily but was lost.

Check cable connections – Disconnect and firmly reconnect the HDMI or Type-C cable at both ends.
Confirm the source is outputting – Power on the source device and verify it is sending a video signal.
Wait for the handshake – If you just connected a new source, wait 3–5 seconds for the resolution handshake to complete.
Adjust source output resolution – On the source device, set the output resolution to 4K@60fps or lower.
Try a different cable – Use a known-good HDMI 2.0 cable or the included Type-C cable.
Restart the UHD Halo – Power off and back on to reset the input detection.

If the “No Signal” issue occurs with a Type-C connected device:

Confirm the device supports DP Alt Mode (video output over Type-C).
On Android phones, ensure DP Alt Mode or Desktop Mode is enabled in settings.
Try the other included cable (Type-C to USB-A 3.0) if available.