HDCP Error
TCL Roku TV
Severity: ModerateWhat it means
'HDCP Error' (often shown as 'Unable to display HDCP-protected content' on a purple or grey screen) means the copy-protection handshake between your TCL Roku TV and the device on the HDMI input has failed.
HDCP is the system that streaming services, Blu-ray players, and consoles use to verify everything in the chain is allowed to show their video.
It's almost always a handshake glitch, a cable problem, or a device-mismatch issue — not a real piracy block — and a proper power-cycle clears most cases.
Affected Models
- TCL 3-Series Roku TV (S3xx)
- TCL 4-Series Roku TV (S4xx)
- TCL 5-Series Roku TV (S5xx)
- TCL 6-Series Roku TV (R6xx, R7xx — HDMI 2.1 ports)
- Common with PlayStation, Xbox, Apple TV 4K, Fire TV Stick 4K, Blu-ray players, and AV receivers
Common Causes
- HDMI handshake failed when the source woke up, or when the input was switched
- Cheap, old, or damaged HDMI cable not carrying HDCP signals reliably
- HDCP version mismatch (4K HDR source on an older HDMI 1.4 port)
- AV receiver or HDMI splitter in the chain not passing HDCP correctly
- Source device's HDCP firmware bug — fixed by updating it
- Loose HDMI connector at either end
- Multiple HDCP devices fighting for the same input (e.g. nested splitters)
How to Fix It
-
Reseat the HDMI cable on both ends.
Unplug the HDMI cable at the TV and at the source device — Apple TV, console, Blu-ray, soundbar, whatever — and push each end firmly back in.
A slightly loose plug is the most common single cause of HDCP errors and you'll hear or feel a small click when it's properly home. -
Power-cycle the TV and the source.
Turn the source device off, then unplug the TV from the wall for 60 seconds.
Plug the TV back in, turn the source device on, wait for it, then switch the TV to that input.
This forces a clean HDCP handshake on the next boot, which clears most cases. -
Try a different HDMI port — and pick the right one for 4K.
Switch the cable to another HDMI port on the TV.
On TCL Roku TVs, only specific ports support HDCP 2.2 (needed for 4K HDR).
The supported port is usually labelled — for a 4K Apple TV or 4K console, use HDMI 1 or whichever port the manual marks as HDCP 2.2.
Plugging a 4K source into an older HDMI 1.4 port causes HDCP errors on every protected stream. -
Swap the HDMI cable.
Try a known-good HDMI cable, preferably a current HDMI 2.0 or 2.1 'High Speed with Ethernet' cable.
Worn-out cables, very long no-brand cables, and bargain-bin cables often drop HDCP — the picture either flickers, goes black, or shows the HDCP error.
A working cable from another device is the quickest test. -
Bypass the AV receiver or splitter, then try again.
If your source goes Apple TV → receiver → TV, plug the source straight into the TV and see if the error goes away.
If it does, the receiver or splitter is the weak link — update its firmware or check it actually supports HDCP 2.2 for 4K.
Cheap HDMI splitters in the chain are a common HDCP-error cause. -
Update the source device's software.
On the streaming stick or console, install any available system update — HDCP handshake fixes are a common thing manufacturers patch.
Reboot it after the update and try the input again.
If a fully-updated source on a known-good cable into a 2.2-capable port still throws HDCP errors only on this TV, contact TCL support; that points at a faulty HDMI board.
Frequently Asked Questions
Why does my TCL Roku TV only show HDCP errors on 4K content?
Because 4K streaming uses HDCP 2.2, and only some of the TV's HDMI ports support it — older HDMI 1.4 ports use HDCP 1.4 and will refuse 4K protected content.
Check your TV's HDMI port labels in the manual; HDCP 2.2 ports are usually HDMI 1 (and sometimes HDMI 2) on TCL Roku models.
Move your 4K device — Apple TV 4K, PS5, Xbox Series X, 4K Blu-ray — to that port and use a current HDMI 2.0 or 2.1 cable.
1080p on the other ports will keep working with the old cables; it's only the 4K HDR signals that need the higher-spec port and cable.