TCL TV Keeps Restarting — How to Fix It

What Does This Error Mean?

A TCL TV stuck in a restart loop usually has a corrupted firmware update or is overheating. Unplugging the TV for 60 seconds often breaks the loop. If the loop continues, a factory reset from the TV's recovery menu restores the firmware to a working state.

Affected Models

TCL 4-Series
TCL 5-Series
TCL 6-Series
TCL S4
TCL Q6
TCL QM8

Common Causes

A firmware update was interrupted mid-install, leaving the TV with corrupted boot data
The TV is overheating and the thermal protection circuit is forcing repeated shutdowns
A third-party app installed on Google TV is crashing the system and forcing a reboot
The TV's main board has a failing capacitor causing voltage instability
Automatic updates downloaded a buggy firmware version

How to Fix It

Unplug the TV from the wall. Wait 60 seconds. Plug it back in.

This breaks most restart loops caused by a temporary firmware crash. Allow the TV to complete one full boot before doing anything else.
Ensure the TV is not overheating — check that ventilation slots are unobstructed and the TV is not inside an enclosed cabinet.

A TV restarting every 30–60 minutes of use is a strong sign of thermal shutdown. Move it to a well-ventilated position.
If the TV is running Roku OS and keeps restarting: press Home 5 times, Up, Rewind twice, Fast Forward twice on the remote to access the secret menu and run a system restart.

This Roku recovery sequence forces a clean restart without a factory reset.
Perform a factory reset. On Roku TV: Settings → System → Advanced system settings → Factory Reset. On Google TV: Settings → System → About → Factory Reset.

A factory reset reinstalls the firmware from the TV's internal recovery partition, fixing corrupted boot data.
If the TV cannot stay on long enough to complete a factory reset from the menu, try the hardware reset: with the TV unplugged, hold the physical reset button (usually a pinhole on the back) while plugging the TV in.

Hold the reset button for 15–30 seconds. The TV will boot into recovery mode and begin a factory reset.

When to Call a Professional

If a factory reset does not stop the restart loop and the TV is not overheating, the main board or power board may have a hardware fault. A TV repair technician can test and replace individual board components. For budget TCL models under $200, compare repair cost to replacement.

Frequently Asked Questions

TCL TV started restarting right after a software update — is the update the cause?

Yes — a failed or incomplete firmware update is the most common cause of restart loops. A factory reset re-installs clean firmware and stops the loop. Alternatively, TCL support may have a firmware recovery USB image for your model.

The TV restarts but only on one specific app — is it a hardware problem?

No — app-specific crashes that cause a system reboot are a software issue. Uninstall and reinstall the app, or clear its cache from Settings → Apps → [App Name] → Clear Cache. If the crashes stop, the app was the culprit.

After a factory reset, will I lose all my apps and settings?

Yes — a factory reset erases all installed apps, accounts, and settings. On Roku TV, your Roku account saves your installed channels and can restore them after the reset. On Google TV, signing back into your Google account re-downloads your apps automatically.