Bạn xem cho mình FW của Em này nha :
Description: [F:]USB Mass Storage Device(JetFlash Transcend 4GB)
Device Type: Mass Storage Device
Protocal Version: USB 2.00
Current Speed: Full Speed
Max Current: 100mA
USB Device ID: VID = 058F PID = 6387
Serial Number: 2W1DQLGZ
Device Vendor: JetFlash
Device Name: Mass Storage Device
Device Revision: 0100
Manufacturer: JetFlash
Product Model: Transcend 4GB
Product Revision: 8.07
Chip Vendor: Alcor Micro
Chip Part-Number: AU6983/AU6986 - F/W 2106
Flash ID Code: ECD755B6 - Samsung - 1CE/Single Channel [MLC-4K] -> Total Capacity = 4GB
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