LG TV Keeps Restarting — How to Fix It

What Does This Error Mean?

Unplug the LG TV for 60 seconds, then plug back in to clear a soft crash loop. If it restarts repeatedly, disable Auto Update in Settings → General → About This TV to stop a broken update loop. Persistent reboots that survive a factory reset point to a failing power supply or mainboard.

Affected Models

LG OLED C-series
LG QNED series
LG NanoCell series
LG UHD series
LG webOS 6 / 7 / 22 / 23 / 24

Common Causes

Corrupted or interrupted webOS firmware update
Overheating due to blocked ventilation
Failing power supply board causing voltage drops
CEC signal from a connected device triggering a reboot
App or streaming service crash causing a soft reboot

How to Fix It

Power cycle the TV

Unplug from the wall for 60 seconds. This clears any memory-resident crash loop that a standby restart cannot fix.
Check for an interrupted update

Go to Settings → Support → Software Update → Check for Updates. If an update is stuck or partial, let it complete fully on a stable Wi-Fi connection.
Disable HDMI-CEC (Simplink)

A device connected via HDMI can send CEC commands that trigger a TV reboot. Go to Settings → General → External Device Settings → Simplink (HDMI-CEC) and turn it off. Retest.
Check ventilation and temperature

Ensure at least 4 inches of clearance around the TV, especially behind it. Overheating triggers automatic shutdowns on LG OLEDs. Clean any dust from vents.
Factory reset

Settings → General → Reset to Initial Settings. This resolves corrupted webOS state. You will need to re-add apps and accounts afterward.

When to Call a Professional

If the TV reboots every few minutes even after a factory reset with no apps installed, the power board or mainboard is failing and needs professional repair.

Frequently Asked Questions

LG TV restarts every few minutes — is this a hardware problem?

If it restarts on a consistent cycle (e.g. every 5 minutes) even with no apps open, a power supply voltage issue is likely. If it restarts during heavy streaming, it is more likely a software or overheating issue.

My LG TV reboots after a software update — how do I fix it?

A corrupted update can leave webOS in a boot loop. Hold the power button on the TV body for 10 seconds to force-restart, then let any pending update complete on a stable Wi-Fi connection before using the TV.

Can a factory reset fix a restart loop on an LG TV?

Yes — if the cause is corrupted webOS data or a misbehaving app, a factory reset usually stops the restart loop. If it continues after a factory reset, the issue is hardware-related.