Bricked Jornada 568

Hi,
I bricked my Jornada 628 yesterday while trying to install linux on it - 
while writing the bootloader to the ROM, it just froze. I now have what 
I believe to be a working JTAG interface soldered onto the device. I 
installed Slackware 10.2 on an older PC to have a Linux distro with 
kernel 2.4 to make jflash work. When running jflash (./jflash 
saved_bootldr W), I get the following error:

JFLASH Version xxx
current control c2
error, failed to read device ID
ACT: 1111 1111111111111111 11111111111 1
EXP: **** 1001001001100001 00000001001 1

failed to read device ID for the SA-1110


I double-checked all wires for a short circuit, but they are all 
isolated from each other. When I manually connect the parallel port pin 
11 (which is soldered to TDI (pin 4) on the Jornada) to parallel port 
pin 25 (GND), I get ACT: all zeroes, so the program seems to use the 
correct parallel port (well, there is only one in this computer).

To build the JTAG cable, I followed this HOWTO:

http://disk.jabbim.cz/[email protected]/Jornada_debricking_HOWTO.TXT



I would be glad for any hints on what could be wrong.

Jan