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Difference between revisions of "IMG4 File Format"
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| − | There is an '''img4''' file (sep-firmware.img4) found in /user/standalone/firmware on [[iOS]] 7.0.4 for the [[iPhone 5s]]. The IPSWFILE/Firmware/all_flash/all_flash.DEVICEIDENTIFIER.production for any [[A7]] (64 bit) device containts an IM4P version of the same file. It has a |
+ | There is an '''img4''' file (sep-firmware.img4) found in /user/standalone/firmware on [[iOS]] 7.0.4 for the [[iPhone 5s]]. The IPSWFILE/Firmware/all_flash/all_flash.DEVICEIDENTIFIER.production for any [[A7]] (64 bit) device containts an IM4P version of the same file. It has a IMG4 header, but also refers to [[IM4P File Format]]. |
| + | ==Header== |
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| − | The IMG40 structure is as follows: |
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<pre> |
<pre> |
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| + | uint8_t ??; //0x30 |
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| − | sequence [ |
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| + | uint8_t lengthOfSize; //0x83 = 3byte, 0x84 = 4byte |
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| − | 0: string "IMG40" |
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| + | 3,4 byte sizeFromHere; //Size of Image |
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| − | 1: string encryption type - IM4P |
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| + | uint32_t delimiter; //0x1604 |
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| − | 2: string type - sepi (Secure Enclave Processor Image), ... |
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| + | uint32_t magic; //IMG4 |
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| − | 3: ... |
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| − | ] |
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</pre> |
</pre> |
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Revision as of 02:12, 27 December 2013
There is an img4 file (sep-firmware.img4) found in /user/standalone/firmware on iOS 7.0.4 for the iPhone 5s. The IPSWFILE/Firmware/all_flash/all_flash.DEVICEIDENTIFIER.production for any A7 (64 bit) device containts an IM4P version of the same file. It has a IMG4 header, but also refers to IM4P File Format.
Header
uint8_t ??; //0x30 uint8_t lengthOfSize; //0x83 = 3byte, 0x84 = 4byte 3,4 byte sizeFromHere; //Size of Image uint32_t delimiter; //0x1604 uint32_t magic; //IMG4
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This software article is a "stub", an incomplete page. Please add more content to this article and remove this tag. |
