Well I can confirm even after getting the update (08-016-21) for my 19 JLUR, I'm now getting a flicker for the entire screen almost like it "shakes" left and right very quickly. It happens intermittently and I can't recreate it like the previous flicker prior to the update. Not sure at this point what to try. Wondering if it might be a hardware issue with the radio? Any other folks had an issue after the TSB update?
Just following up on the thread as I had the dealer perform the update for 7” radio and it resolved the flickering issue for me which was present while using apple car play. I believe the 7” radio has to be updated by the dealer as over the air isn’t available and a software update was never available online to download on mopars uconnect website. Hope y’all find success as it can be annoying/distracting to have the screen flickering.