66f183077d
To be sure that there is no mistake in this code, it is run *after* the known to work HOME & LEFT buttons checks, unlike other Sansas git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26122 a1c6a512-1295-4272-9138-f99709370657
69 lines
1.9 KiB
Text
69 lines
1.9 KiB
Text
mkamsboot
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A tool to inject a bootloader into a Sansa V2 (AMS) firmware file.
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Usage
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-----
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mkamsboot <firmware file> <boot file> <output file>
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<firmware file> is an original Sansa firmware file obtained from the Sansa
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forums for example : http://forums.sandisk.com/sansa/?category.id=devices
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<boot file> is the code you want to execute (a rockbox bootloader), previously
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scrambled with tools/scramble utility.
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<output file> is the resulting firmware file which you'll have to copy on your
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Sansa player. See "Firmware filenames".
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Supported models
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----------------
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Sansa Clip : firmware version starting with "01."
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Sansa Clip+ : firmware version starting with "01."
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Sansa Clipv2: firmware version starting with "02."
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Sansa Fuze : firmware version starting with "01."
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Sansa Fuzev2: firmware version starting with "02."
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Sansa E200v2: firmware version starting with "03."
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Sansa C200v2: firmware version starting with "03."
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Sansa M200v4: firmware version starting with "4."
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Firmware filenames
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------------------
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For the firmware upgrade to happen, the firmware has to be named specially:
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clip v2 : m30pa.bin
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clip : m300a.bin
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clip+ : clppa.bin
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fuze : fuzea.bin
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fuzev2 : fuzpa.bin
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e200v2 : e200pa.bin
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c200v2 : c200pa.bin
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m200v4 : m200a.bin
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Dual-Boot
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The purpose of this program is to provide dual-boot between the original
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firmware and the new (rockbox) firmware.
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By default the player will boot into the new firmware.
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To boot into the Original Firmware, you need to press the Left key.
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***Note : on the c200v2 you need to press the Right key.
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***Note : on the Clip+ you can alternatively press the Home key.
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The player will boot into the Original Firmware as well if it is powered up by
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inserting an usb cable.
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***Note : on the m200v4 powering up by usb will cause booting into the new firmware.
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Hacking
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See comments in mkamsboot.c and dualboot/dualboot.S for more information.
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