Which is why it doesn't need to be upgraded at all! All you need is map database updates- that road closed, this new road was put in, end of story. My Garmin wo

Which is why it doesn't need to be upgraded at all! All you need is map database updates- that road closed, this new road was put in, end of story. My Garmin works like that, and I've seen first-hand with it that map databases tend to stay current "enough" for years. Through that lens, you could view the fact that pre-WiFi, pre-cellular dash systems can only be upgraded by invasive action at the dealer as a blessing...