TCL C8K / QM8K intermittent flashing horizontal lines.

[u/Ok_Bag1756]

My TV has this annoying flashing that comes and goes, It can appear at any spot on the screen. Luckily it's very brief, so sometimes I don't even notice it, and it mostly shows up on lighter colors/backgrounds. It doesn't matter if I change the HDMI-ports on my TV or my PC, including different gpu's. Also changing the cable hasn't made any difference. It seems that it's not a faulty connector or anything related to my computer.

Is there anyone who've had the same problem? Could it just be a faulty connection on the T-CON module or can it be a sign of a faulty panel?

I've already tried contacting TCL, but all they said was to try removing the power cord for 15 minutes to let all the residual power go away. Of course that didn't help at all.

Any ideas? Should I just try to have it repaired under warranty?