[Bluez-devel] dfutool - IBM X23 refuses to update ;)

[Nils Faerber <nils.faerber@kernelconcepts.de>]

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Hi all!
Some time ago I purchased an IBM X23 notebook (nice thing BTW) with
Bluetooth. The Bluetooth chip is, of course, a CSR one, labeled as ITSE.
IBM offers a Bluetooth firmware upgrade for it to help support of
multiple connections.
So I would like to upgrade my firmware using the dfutool. IBM's uprade
file can easily be unpacked and what you get is the, I guess, proper DFU
file for the upgrade.

Using the dfutool I can nicely backup my firmware to a file - works like
charm!
But when I try to flash the new firmware the dfutool waits a couple of
seconds at "switching device to dfu mode", then sais "Dowloading
firmware" without progress indication and then sais "Can't get status:
Broken pipe (32)".

Pity, so close but yet so far ;)

If it is of help I can provide the original and update firmware files.
Here is additonally what hciconfig tells me about my chip:

root@miu:~ # hciconfig hci0 revision
hci0:   Type: USB
        BD Address: 00:80:98:24:80:BE ACL MTU: 128:8  SCO MTU: 64:8
        HCI 11.3
        Chip version: BlueCore01b
        SCO mapping:  HCI

root@miu:~ # hciconfig hci0 version
hci0:   Type: USB
        BD Address: 00:80:98:24:80:BE ACL MTU: 128:8  SCO MTU: 64:8
        HCI Ver: 1.1 (0x1) HCI Rev: 0x73 LMP Ver: 1.1 (0x1) LMP Subver: 0x73
        Manufacturer: Cambridge Silicon Radio (10)

And this is the name of the new firmware file
	ITSE_00003_07_IBM_BDC_Firmware128_Rev310.dfu


So, does anyone have an idea how to debug or even fix this?
If yes, I would be quite glad ;)

Cheers
  nils faerber

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