Two days ago I downloaded the update SL5500v 31u & SL5500v 31c. 
In the process of installation of the new version on my Zaurus, my 
Internet connection was interrupted. 
The process of updating the OS was interrupted. 
 
Consequence: my PC is unable to recognize the PDA
and every time I turned my PDA on this is the only information on display:
 
SHARP
 
INIT: version 2.78 booting
INIT: No inittab file found
INIT: Entering runlevel: 5
INIT: no more processes left in this runlevel
 
Please help me!
My model is a Zaurus 5500