| File | Purpose | |------|---------| | ebootus.bin | Ethernet bootloader (EBOOT) for USB loading | | mcd-us.bin | Main OS or bootloader payload | | nk.bin | Windows CE kernel image (Platform Builder output) | | os.bin | Full OS image (sometimes same as nk.bin) | | splash.bin | Startup logo | | radio.bin | WWAN/WiFi firmware |