Sorry, vielleicht doofe Frage, aber hast du die Anleitung befolgt ?
"3.2.
Updating via USB
3.2.1.
Preparations
Before updating your Chameleon, please make sure that it has sufficient power. Any and all trouble
that has been reported so far was related to power problems that were caused by external power
draining. To be safe, please:
•
disconnect the Chameleon docking station
•
disconnect the PS2 keyboard
•
disconnect the PS2 mouse
•
you MUST remove the SD/MMC card from the card slot (else you will get an error message
and can not update)
If you are using a USB charger as your power supply, please make sure it's a 1000mA type.
Although Chameleon takes just over 400mA of power, many 500mA types are already at their limit
with a Chameleon. If possible, use a 5.2V/1000mA type instead of 5V/1000mA. However, do
not
go over 5.2V for supply voltage!"