Zms13

After taking my 21 Silverado to the dealership to get them to reinstall my radio software to fix the internet connection issue. They acted like they had no clue what I was talking about. I explained that on star had informed me of the bulletin and I showed them. It took three hours for them to say that I had a faulty internal usb (which they don’t have)but nothing about the bulletin. Not sure if anyone has had this issue.