It can be safely installed on almost all hardware revisions from old Index A units to newer LED units.
The last official maps (V19 Europe or V13 North America) work flawlessly on Josi. You can even hack the partition table to load full European maps plus 20GB of music.
It works on almost all versions of the RNS 510, from the oldest "A" units to the newer "P" versions. Key Benefits of Upgrading rns 510 firmware 5238 josi
The is a highly recommended modified update known for being compatible with virtually all hardware versions (C3 to C12) of the Volkswagen RNS 510 and Skoda Columbus head units. It is frequently used to fix "boot loop" errors and improve overall system stability. Key Benefits and Features Upgrading firmware and maps on VW RNS 510 SatNav
Troubleshooting notes I’ll add after attempting: It can be safely installed on almost all
For owners of a compatible VW, Skoda, or Seat with an HDD-based RNS 510, It unlocks crucial features, significantly improves system stability, and is a necessary step for installing the latest navigation maps.
Due to its nature, the original Josi 5238 firmware is not available from official sources. It is found in VW enthusiast forums and personal file shares. It works on almost all versions of the
Use a VCDS (VAG-COM) cable to ensure your unit has "downgrade" enabled, and to check your current HW version.
Allows passengers to watch DVDs while the vehicle is moving.
Older Volkswagen vehicles (pre-2008) have CAN-bus gateway modules that do not communicate properly with newer RNS firmware, keeping the stereo awake and draining the car battery. Josi integrated a "Gateway Fix" directly into the firmware script, eliminating the need to buy a new physical CAN-bus gateway.