Finally got infotainment manually updated
I was stuck on LK3D in D/FW, Texas. First dealer I went to did nothing in 6 hours (Longhorn Nissan in Hurst), but Don Davis Nissan in Arlington was able to do it. I had opened a support case with Nissan and referenced that ticket number, meaning they had to try harder, and it took 2 days. I also reminded them to contact Nissan EV Support, which they did. They had to do 4 updates sequentially that took several hours each. (A USB stick was involved for some reason and the connection to Nissan is slow.)
So I have a battery header widget now that it's almost 100 degrees. :)
Maybe now I'll get future updates? I read that the 2027 Ariya has a different infotainment system, so I doubt there will be many more for earlier models.