What to know about the Bootrom Dumper Utility (BDU) :
- you need a mac or linux box to use it / build it
- libusb > 1.0.8 required
- execute it with root privileges (sudo ./bdu)
- by default compatible only with A4 devices : (iPhone 4, iPod 4G, iPad, AppleTV 2)
it's possible to extend the compatibility to older devices as well (iPhone 3Gs, iPod 3G) by changing:
* the offset to the call of usb_wait_for_image in payload.S
* exploit offsets in bdu.c
was too lazy to automate this stuff...
Happy Reverse Code Engeneering !
~ pod2g