A2Uploader doesn't recognize my w508 !!

when i open A2uploader and press indentify then hold the C button then plug in the cable to the phone

nothing happend and the phone turn on and it load the mass storage to my computer normally :S

i was doing this be4 with my K800 and it was going so good

i tried holding 2+5 another time but still nothing happened ....

maybe the usb driver i assigned is wrong ??

please tell me wats going on or give me link to w508 usb driver i've searched alot on google with no use :(