i have the same problem.
i had gemini 4.20 installed on the dm500, and i used Flashwizard 6.3 to flash PLI jade.
the installation stopped at the "writing and verifiying cramps memory partition" - stucked at 84% and after a few mins i had to disconnect the power of the box to reset it.
after reading a lot in all the forums here i got a Null Modem cable and tried to connect the box - but without luck.
in case anyone wondered, I disconnected all cables , connected the Null modem cable alone started DreamUp 1.3.3.2 and pressed the connect (without network option). then i switched on the dreambox and NOTHING HAPPENS.
Right now my dm500 doesn't work because of that PLI jade and i've no idea what to do !
(can't telnet it, can't ftp it, can't ping it,and doesn't show anything on TV)
i need a little help from the experts....
if anyone else had that problem.... plz help.
thanks.
NF