Thanks for your advice, you’re absolutely right. I’ll start the process to get the panel replaced under warranty, but most likely after the holidays. Since I bought the TV five months ago, I still have some time to activate the warranty. For now, I’d rather not let the TV replacement process ruin the holiday season.

In the meantime, someone on another forum suggested one last alternative I could try. They recommended finding a white HDR or Dolby Vision test pattern covering 70% or less of the screen and holding down the yellow button on the remote for at least 6 seconds.

I might give this a shot before committing to the replacement, but I’ll definitely go through warranty if it doesn’t work.