i have done these step
1. Format you memory stick on you PC FAT32.
2. Create a directory in called vuplus.
3. Within the the vuplus directory create another folder called duo.
4. Unzip the USB upgrade files into that directory.
5. Power off your VU+ Duo.
6. Insert memory stick into front USB slot.
7. Power on your VU+ Duo
but on the front of the boxes it just says VU+ Duo nothin happening??????