Thread: Enable features in your nuvi 12xx, 13xx and 14xx - JCV, LA, TTS

People, you can't run 1104 boot.bin on a device with 972 bootloader and vice versa. It's because of the totally different loading addresses of boot.bins (0x60000 for 972 vs 0x10040000 for 1104). boot.bin is not a position independent piece of code. It crashes very early if loaded at a wrong address.

As it is boot.bin who is responsible for flashing bootloader, you can't accidentally replace 972 bootloader with 1104 one and vice versa. Doing so would require running update.txt script rather than just flashing an RGN file.

Exactly the same thing is true for firmwares. You can't run 1104 firmware on a device with 972 bootloader and vice versa. You'll see the "system software missing" message in this case.

So, cat2115, it's impossible that you've flashed wrong boot or wrong firmware. Even if you renamed the RGN file, it would still be impossible. The explanation must be somewhere else.

UPD
By the way, I'm by no means saying that you can safely rename RGN files. It could be deadly dangerous!
But in this particular case it's safe because of the different loading addresses.