I have tried every fix listed on this forum and nothing has worked. I ended up emailing TCL customer support and they requested video of the popping sounds. After emailing back and forth for around a month they agreed to send a technician out to repair my TV. The repair company called me and I missed it. When I called back they introduced themselves as a Vizio company. Weird right?
What really bugs me is that this is not an isolated incident that can be repaired with a simple software update. Also weird.
Anyways, the tech is coming out tomorrow and I’ll let you know what happens.
FIXED IT! We’ve had two sets of surround speakers that plug into the audio out and both have made the popping sound. I assumed it was bad speakers the first go round but the second time I figured out it was the TV. Unhooked all external speakers and I’ve lost all sound even from internal speakers. I’ve tried all of the different tricks but the RESET button was the solution! Thanks!
The reset button worked perfectly! I had turned the "leveling" to off but all sound was super quiet. I had to turn up the volume almost half way just to hear the dialogue and then the action and music scenes were super loud. I pressed the reset button in the back and all volume is back to normal and leveling is in again so the dialogue and action scenes are level as they were before the static began.
Fixed! Have had my tv 1 year and just today it started crackling. I turned leveling "off", as suggested and the crackling is gone! It must have always been on this setting so it is odd that the crackling just started but I'm relieved for the fix!