how to hide my external disk drive

yo01

Broken In
I m using Micromax MMX352G usb modem which has an disk drive in it.
The problem is, I have to remove the all usb external drive before upgrading my Samsung wave 525 firmware. If i remove it then Internet will not work and upgrading will not complete.
So, is there any method i can keep all my external drive undetected or hidden from the Kies .

Plz suggest.
 
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