Rt3 Upgrade 651 Na 663 Build 890 Can42 New Fixed May 2026

RT3 Upgrade: 651 to 663 Build 890 CAN42 - What's New?

• 651 refers to the firmware application version.
• NA signifies the North American region (map data and radio frequencies).
• The problem: Version 6.51 is archaic. It suffers from slow boot times (up to 45 seconds), frequent "Navigation Unavailable" errors, poor Bluetooth audio quality (if equipped), and a bug where the screen freezes when the temperature drops below freezing. Furthermore, 651 is notorious for corrupting its hard drive if the vehicle battery dips below 10 volts.

• Patched several security vulnerabilities
• Improved device authentication and authorization
• Enhanced encryption protocols

Increased Media Compatibility

: Support for more audio and video formats, along with improved USB and streaming stability, means users can enjoy their media collections more reliably.