TCL C645 4K QLED Game Master Google TV

Unable to search for Wi-Fi hotspot

Intermittent sound

Serious distortion of sound

The picture color is abnormal, with large area of watermarks

Black or crash screen after USB upgrading

Incomplete Network Upgrade

Network upgrade failed

No network upgrade prompt

TV cannot be turned on after network upgrade

TV cycle power on and off after USB upgrading

Unable to identify upgrade file with USB upgrade software

TV displays a black screen and the standby LED lights off.

TV displays a black screen and the standby LED lights up.

What can I do if the TV cannot start up successfully from the standby status?

What can I do if the TV has a horizontal line?

What can I do if the TV has cross lines issue?

How to reset the TV to the factory default settings?

What can I do if the TV keeps restart/power on and off always?

What can I do if the TV has no power at all?

What can I do if the TV has a light leakage?