Yes, that sounds like a hardware type of problem.
Suggestions for you to try ...
- try a longer time without battery or external power,
- check that the AC adaptor is plugged in, in case the battery is
failing to provide enough current to start things up,
What model XO-1.5 is it?
On first boot it froze about 4sec into the boot process, I think at
"loading mass storage devices" or something relevant.
I'm not familiar with that message. Could you explain further from your
memory of the event what else was present?
On hard reboot (with power button for 5sec) ...
I hope you didn't do this during a firmware reflashing. That would be
bad.
--
James Cameron
http://quozl.linux.org.au/