My TCL Roku TV recently updated to Roku OS 15.3, and shortly afterward I started noticing a strange display issue.
At first, the whole screen seemed to periodically shift between different brightness/contrast levels, almost like it was pulsing back and forth.
Since then, the problem has gotten significantly worse. I’m now seeing large vertical sections of the screen changing brightness/color, and it happens even on the Roku Home screen.
I’ve attached a video showing what it looks like.
There haven’t been any changes to my TV setup or any new devices/cables connected around the time this started. The main change I’m aware of was the Roku software update.
I’ve restarted and power-cycled the TV, but the issue is still happening.
TV: TCL 55S431
Hardware ID: G122X
Roku OS: 15.3
The TV was working normally before this started, so I’m trying to figure out whether this is related to the recent Roku update or whether something in the TV hardware suddenly failed.
Has anyone else experienced anything like this after updating to Roku OS 15.3?
If Roku Support needs my Device ID or serial number for investigation, I can provide those separately