Dell Optiplex GX620 hangs after firmware update... help

[davide rossetti]

dear all,
I'm so sad :( I ruined my GX620 using formware tools.... I know it's
beta but please help me to get out of it...

I followed the instructions on
http://linux.dell.com/wiki/index.php/Oss/Firmware_Tools/announce

I did:
1) yum install $(inventory_firmware -b)
it found a brand new firmware (A11, old was A03)
2) apply_updates --yes
3) apply_updates --yes
4) apply_updates --yes

yes, I did it 3 times as the apply was so quick that I thought there
was some error somewhere...
Then I did a power-down
Then a powen on
and now I'm in the situation that the PC stops during BIOS:
- LCD stay in power-save
- a bunch of beeps are played, then it goes silent
- led panel has network,3 and 4 leds ON
I'm stuck! how can I get out of this situation ???
thank you in advance
davide

-- 
davide.rossetti at gmail.com ICQ:290677265 SKYPE:d.rossetti