Because the 1.x firmware is designed for a completely different processor and OS (Linux vs. Windows), you cannot simply install it on a Gen 2 device. What You Can Do (Alternative Options)
While the upgrade is usually simple, issues can arise. Here are common problems and solutions: upgrade medianav 913 to 10131
: MediaNav Linux (Supports CarPlay/Android Auto natively). Alternative Solutions to Get Modern Features Because the 1
You possess the newer Linux-based MediaNav ULC4 system. Official Maintenance for Both Branches upgrade medianav 913 to 10131
Here are the key points for a (official update):