55 lines
2.2 KiB
Plaintext
55 lines
2.2 KiB
Plaintext
<b>Usage guide</b>
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0xFFFF is a free software implementation of the flasher for the Nokia Internet
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Tablets (n770 and n800).
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<pre>
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- flash separated pieces of the firmware.
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- retrieve information about the device
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- reboot de mother board
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- extract the current firmware pieces from the device (dump)
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- set the USB host/slave mode
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- set the R&R mode
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- identify firmware pieces
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</pre>
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This is the help message of the tool:
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<pre>
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<b>~$ 0xFFFF -h</b>
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0xFFFF v0.1 - The Open Free Fiasco Firmware Flasher
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-b [arg] boots the kernel with arguments
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-e [path] dump the firmware pieces into the path
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-p [[p:]file] piece-of-firmware : file-where-this-piece-is
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-r [0|1] disable/enable R&D mode
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-u [fiasco] unpack target fiasco image
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-U [0|1] disable/enable the usb host mode
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-h show this help message
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-i show device information (let standby mode)
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-I [piece] identify a firmware piece
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-l list supported usb device ids
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-d [vid:pid] injects a usb device into the supported list
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-R reboot the omap board
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-v be verbose and noisy
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-V show 0xFFFF version information
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Pieces are: xloader secondary kernel initfs rootfs omap-nand
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</pre>
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Before anything we can execute failsafe queries like getting device information:
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<pre> <b>~$ 0xFFFF -i</b></pre>
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This command will put the bootloader in standby mode, so you can now send other
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commands without having to reboot the tablet manually. To reboot the mother
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board via USB type:
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<pre> <b>~$ 0xFFFF -R</b></pre>
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You can run 'offline' commands to identify the type of the firmware pieces:
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<pre> <b>~$ 0xFFFF -I zImage -I xloader.bin -I initfs.jffs2.orig</b>
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kernel: zImage
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xloader: xloader.bin
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initfs: initfs.jffs2.orig</pre>
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If you want to backup your device firmware you can crosscompile the 0xFFFF
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utility and type this on the terminal:
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<pre> <b>~$ sudo gainroot</b>
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~# mkdir /media/mmc1/firmware
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~# ./0xFFFF -e /media/mmc1/firmware</pre>
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Now is time to flash something :) By default the flasher identifies the type
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of the piece automatically, but you can force't prefixing the filename with
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the piece-type name. To do this is just as simple as typing:
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<pre> <b>~$ 0xFFFF -p zImage</b></pre>
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