Hi! Everything was functioning fine for several months,then all of a sudden, my conecction was lost, my system do not recognize the USB device.I change USB sloths,check the cables, applied another USB pen drives instead of my non-functioning wireless USB device,I plugged another USB device in case this one was damaged; I desinstalled and reinstalled the device and software;I even went back to a earlier restoration point.It is driving me crazy,the computer tells telling me that it does not recognized the devuce.Hope somene be abkle to hel p me. Thank you for your eventual advice
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I have the same problem, my Sahara Notebook Image book's usb ports are all not recognizing any usb device i have tried to reistall the os but nothing happening, so what can i do coz the recovery disk was lost.
I have the same issue. I have 4 Simpletech Signature 250GB drives. They all worked fine at first. After about six months two of them started connecting at USB 1 speeds. It occurs on 4 different computers!!! The post about it being the computer assumes is wrong. How can it work fine for six months and then suddenly change. Also it occurs on different computers. I have submitted a tech support request with simpletech and will post the results.
I assume you are running windows operating system. You need to
uninstall all your usb devices. Go to computer manager/device manager
and select all USB devices and unistall them. Go to the start menu,
click on run type compmgmt.msc. Find all your USB devices on the right
side. Follow the instructions for each device to uninstall them by
double clicking and then select uninstall. once you uninstall, click on
the icon to scan for hardware changes located on the sub menu. Your
operating system should recognize new hardware or reboot and the
operating system should install them automatically again. After you reboot, logon do not connect the harddrive until you are logged in completely. The operating system should recognize a new device and install it automatically. I
hope it helps.
Seen this happen many times...it stems from a corruption of the plug and play drivers enumeration key in the registry...the fix is quite elusive...the key is cheap...pick a different brand to replace it with save yourself the grief of fighting this battle.
Hope that helps.
Go into the device manager, click on View > Show hidden devices.
Look under unknown devices or under USB for unknown devices. Also check under the section relating to the type of usb device.
If you find an Unknown Device, or a device with an exclamation point, right click on it and uninstall.
Disconnect the device, reboot and install the drivers/software for it if any.
If it's still not working check it in another computer.
If you cannot get it to work in either machine, the usb plug of the device is probably damaged. Possibly a loose solder joint.
Have the manufacturer send you a new one if its still under warranty.