I have a 2020 SR and purchased new and currently @ 37K miles. About 6k miles ago my volume knob started acting wild as everyone here describes. Always my Bluetooth or USB connection to my Android phone would skip audio. Recently since last week my radio while driving would lock up and restart, which happened 3 times. Researched online and found the bulletin showing a software update resolving the issues and brought this up to the dealer. They proceeded to tell me I had to pay $170 diagnostic fee (just hit my warranty mark @ 36K) and pay whatever it needs to be fixed either software or radio replacement due to a short.. I told them that this was ridiculous its a known issue and there are multiple service bulletins regarding the issue and you still want to charge me?
Long story short I didn't want to pay obviously but felt forced. Did some more research online and found this website: Nissan Publications
They sell the flash drive with the update file already on it. I ordered this and received it 3 days after, following the service bulletin I was able to update my radio from 0810 to 0912.
Instantly my volume knob was fixed, my Android Audio over CarPlay or Bluetooth doesn't skip anymore, etc..
This was my 3rd new Nissan and I'll never buy another with the disrespect I received and the audacity not to honor their cars.
Here is the service bulletin: https://static.nhtsa.gov/odi/tsbs/2021/MC-10186847-0001.pdf