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0xFFFF 0.8
Jan 28 2020


The Open Free Fiasco Firmware Flasher


0xFFFF - Open Free Fiasco Firmware Flasher, version 0.8


0xFFFF [options]


0xFFFF is Open Free Fiasco Firmware Flasher for Maemo devices. It support generating and unpacking FIASCO images on local computer. Useful for editing Maemo firmware package for future flash. It support via USB flashing any image type to Maemo device and also "cold" flashing which means flashing dead device with erased bootloader. There is support for booting kernel via USB without flashing to NAND and also changing configuration of Maemo device (enable/disable R&D mode, changing HW revision strings, ...).
0xFFFF is alternative tool to proprietary Nokia flasher-3.5 and fiasco-gen. 0xFFFF generate compatible FIASCO images and also accept FIASCO images generated by Nokia fiasco-gen.


-b [cmdline]
boot default or loaded kernel (default: no cmdline)
-b update
boot default or loaded kernel to Update mode
-r reboot device
-l load kernel and initfs images to RAM
-f flash all specified images
-c cold flash 2nd and secondary images
-x [/dev/mtd]
check for bad blocks on mtd device (default: all)
-E file
dump all device images to one fiasco image
-e [dir]
dump all device images (or one -t) to directory (default: current)

Device configuration:

-I identify, show all information about device
-D 0|1|2
change root device: 0 - flash, 1 - mmc, 2 - usb
-U 0|1 disable/enable USB host mode
-R 0|1 disable/enable R&D mode
-F flags
change R&D flags, flags are comma separated list, can be empty
-H rev change HW revision
-N ver change NOLO version string
-K ver change kernel version string
-T ver change initfs version string
-S ver change SW release version string
-C ver change content eMMC version string

Input image specification:

-M file
specify fiasco image
-m arg specify normal image
arg is [[[dev:[hw:]]ver:]type:]file[%lay]
dev is device name string (default: empty)
hw are comma separated list of HW revisions (default: empty)
ver is image version string (default: empty)
type is image type (default: autodetect)
file is image file name
lay is layout file name (default: none)

Image filters:

-t type
filter images by type
-d dev filter images by device
-w hw filter images by HW revision

Fiasco image:

-u [dir]
unpack fiasco image to directory (default: current)
-g file[%sw]
generate fiasco image with SW rel version (default: no version)

Other options:

-i identify images
-s simulate, do not flash or write on disk
-n disable hash, checksum and image type checking
-v be verbose and noisy
-h show this help message

R&D flags:

disable auto reboot by OMAP watchdog
disable auto reboot by external watchdog
disable auto reboot by software lifeguard
enable serial console
disable usb timeout for flashing
enable sti console
disable battery charging
force omap boot reason to power key

Supported devices:

SU-18 Nokia 770
RX-34 Nokia N800
RX-44 Nokia N810
RX-48 Nokia N810 Wimax
RX-51 Nokia N900
RM-680 Nokia N950
RM-696 Nokia N9

Supported image types:


Supported connection protocols:

Local on device
Cold flashing via USB
Mk II protocol via USB
RAW disk via USB


Via USB:
Identify device:
$ 0xFFFF -I
Load kernel & initfs and boot it with cmdline:
$ 0xFFFF -m initfs:<file> -m kernel:<file> -l -b "<cmdline>"
Flash kernel and reboot:
$ 0xFFFF -m kernel:<file> -f -r
Flash FIASCO image and reboot:
$ 0xFFFF -M <file> -f -r
Flash only kernel from FIASCO image and reboot:
$ 0xFFFF -M <file> -t kernel -f -r
Cold-Flash 2nd and secondary bootloaders:
$ 0xFFFF -m 2nd:<file> -m secondary:<file> -c
On device (need nanddump from mtd-utils):
Dump all images to current directory:
$ 0xFFFF -e
Dump all images to one FIASCO file:
$ 0xFFFF -E <file>
FIASCO packaging:
Show FIASCO image content:
$ 0xFFFF -M <file> -i
Unpack FIASCO image to current directory:
$ 0xFFFF -M <file> -u
Generate new FIASCO image image.fiasco from files xloader.bin, nolo.bin, zImage, rootfs and append device&version information (xloader for RX-51 hw revision: 2101 and 2102, version 1.0)
$ 0xFFFF -m RX-51:2101,2102:1.0:xloader:xloader.bin -m RX-51:2101,2102:1.0:secondary:nolo.bin -m 2.6.28:kernel:zImage -m rootfs -g image.fiasco
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