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Difference between revisions of "Bootrom Dumper Utility"
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| + | '''Bootrom Dumper Utility''' (short BDU) is an application that will create a copy (aka dump) of the [[Bootrom]] of compatible devices on the local machine from where the application is run. |
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| − | {{DISPLAYTITLE:Bootrom Dumper Utility}} |
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== Credit == |
== Credit == |
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[[User:pod2g|Pod2g]] |
[[User:pod2g|Pod2g]] |
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Revision as of 10:58, 3 January 2012
Bootrom Dumper Utility (short BDU) is an application that will create a copy (aka dump) of the Bootrom of compatible devices on the local machine from where the application is run.
Credit
Info / Instructions
- 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
0x7ef @ A4 devices: iPad 1, iPhone 4 (GSM+CDMA), Apple TV 2G, iPod touch 4G 0x8b7 @ iPod touch 3G 0x8b7 @ iPhone 3GS new bootrom 0x8b7 @ iPhone 3GS old bootrom 0x8b7 @ iPod touch 2G new bootrom (0x30F1 according to other sources) 0x8b7 @ iPod touch 2G old bootrom (0x30E9 according to other sources)
- exploit offsets in bdu.c
// A4: #define EXPLOIT_LR 0x8403BF9C #define LOADADDR_SIZE 0x2C000 // iPod touch 2G: #define EXPLOIT_LR 0x22000000 #define LOADADDR_SIZE 0x24000 // iPod touch 3G: #define EXPLOIT_LR 0x84033F98 #define LOADADDR_SIZE 0x24000 // iPhone 3GS new bootrom: #define EXPLOIT_LR 0x84033FA4 #define LOADADDR_SIZE 0x24000
