USB Not Recognized

"USB Not Recognized"
hal tsb bisa dikarenakan oleh fasilitas management power pada windows(jika memang pake windows), coba dulu hal berikut sebelum menukar usb-device anda atau install-ulang-os-anda


maap dalam english-soalnya ga lancar nerjemahinnya,

1 Click Start, click Run, type Devmgmt.msc, and then click OK. The Device Manager window opens.
2 Expand Universal Serial Bus controllers.
3 Right-click a USB Root Hub in the list, and then click Properties. The USB Root Hub Properties dialog box is displayed.
4 Click the Power Management tab.
5 Click to clear the Allow the computer to turn off this device to save power check box, and then click OK.
6 Repeat steps 3 through 6 for each USB Root Hub in the list.
7 On the Action menu, click Scan for hardware changes.