Lexmark MS421 Kernel Error 900.00

[i-have-fax-problems]

Hello,

I have a MS 421 here with 900.00 errors. (java killed, kernel panic not syncing and so on When you restart the machine 10 times or so, it will boot normally sometimes so I could try some things.
It does not come frome a faulty print or fax job. Device is not connected to fax line and lan.
I've resetted the machine with the yellow jumper.
I've resetted it with the clear memory function under the 26 mode.
I've tried to udate firmware. But this fails. A Programming Error P119 - Signature failure occurs.
Firmware had been up to date (Version 70.45) I believe before the problem occured.
Is the main board broken?
What else can I try?
Thank you.

[dalewb74]

are you sure the firmware is the correct version for this machine? and was the firmware uploaded correctly? got a service manual?

[blackcat4866]

If it won't take the firmware, then yes, you're up for a main board. On a few rare occasions I've had success loading firmware through the web interface or via USB utility, if those things are available to you. Most times, if you're getting 900.00 firmware errors often it won't let you into the web interface.

=^..^=