I've downloaded the firmware version 1.07, the problem is when I try to update my device's firmware the application saysjc5_down) Cannot Load Dynamic Library!!!!, and then, when I click on Aceptar it says CD-ROM drive model does not match!!.

This is the link which I downloaded from:
LG GCC-4521B Firmware Downloads - Firmware HQ
But the strange thing here is I┤ve looked for it as the device┤s sticker indicates (model GCC-4521B).

Mine is a 64 bit operating system, is that the problem?
Sorry if my english is a disaster

Thank you