After trying several ROMs on a 5500 (unfortunately I don't rmind in what order) :
Cacko, Hybrid, Sharp, Open Zaurus, It's now impossible to flash a ROM from an Ospack file, either with C+D+RESET or from Diagnostic utility.
The two leds (green+Orange) are only on during 3 or 4 seconds, then turn off.
Does anyone know what it means?