Difference between revisions of "Modes"
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==Disk mode== | ==Disk mode== | ||
| − | Disk mode has existed ever since the iPod has existed. Disk mode is | + | Disk mode has existed ever since the iPod has existed. Disk mode is stored in the 1MB NOR auxillary flash (along with the bootloader), so this is pretty much always there, no matter what sort of tampering you have done. Disk mode basically makes the iPod behave as a massive storage device, allowing the computer to directly read and write the data flash chip. |
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==DFU mode== | ==DFU mode== | ||
DFU mode is a relatively new standard for upgrading firmware that is used in many devices like the OpenMogo and the newer iPods. DFU mode is also flashed in the processor's bootrom. Newer iPods have both DFU mode and disk mode, while iPod Touch and iPhones have exclusively DFU mode. It is worth noting that DFU mode was implemented at the exact time that Apple switched from PortalPlayer to Samsung processors, and also exactly when the firmware was encrypted. There could be a relationship. | DFU mode is a relatively new standard for upgrading firmware that is used in many devices like the OpenMogo and the newer iPods. DFU mode is also flashed in the processor's bootrom. Newer iPods have both DFU mode and disk mode, while iPod Touch and iPhones have exclusively DFU mode. It is worth noting that DFU mode was implemented at the exact time that Apple switched from PortalPlayer to Samsung processors, and also exactly when the firmware was encrypted. There could be a relationship. | ||
Revision as of 00:34, 25 February 2009
The 2G Nano has two special modes that it can boot into called disk mode and DFU mode
Disk mode
Disk mode has existed ever since the iPod has existed. Disk mode is stored in the 1MB NOR auxillary flash (along with the bootloader), so this is pretty much always there, no matter what sort of tampering you have done. Disk mode basically makes the iPod behave as a massive storage device, allowing the computer to directly read and write the data flash chip.
DFU mode
DFU mode is a relatively new standard for upgrading firmware that is used in many devices like the OpenMogo and the newer iPods. DFU mode is also flashed in the processor's bootrom. Newer iPods have both DFU mode and disk mode, while iPod Touch and iPhones have exclusively DFU mode. It is worth noting that DFU mode was implemented at the exact time that Apple switched from PortalPlayer to Samsung processors, and also exactly when the firmware was encrypted. There could be a relationship.
Helpful pages
http://daniel.haxx.se/blog/2008/09/03/dfu-mode-on-2nd-gen-nanos/
