Thank you for the link, but I specifically need the firmware in .frf format. I want to flash my Amundsen unit using ODIS-E and a VAS5054A. The file you provided is meant to be installed via SD card. Unfortunately, I cannot use the SD card method because my display no longer works — it's completely black, and the physical buttons have also stopped responding. This happened after I tried updating my Amundsen via SD card. As I mentioned earlier, my phone connects via Bluetooth, and I can listen to music through Android Auto without any issues. However, I can only control the volume using the steering wheel buttons. Is there any other way to install firmware on my Amundsen without needing the display?