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Hi, toshiba c660 usb ports stops functioning after a bios upgrade, i have resetting bios default, deleting usb from device manager still nothing. Pls any ideas?

I received a notice toshiba to upgrade my bios to v1.4. I upgraded the bios and the usb ports started behaving funny i.e whenever i plug in my modem it keeps going on and off until it stopped entirely. And then i tried other devices like mouse, mp3 e.t.c but it did not detect them.

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  • anna Dec 12, 2012

    tnx bobby, i tried putting a little bit of force on the device, uninstalled and then installed the drivers but still nothing.

  • anna Dec 12, 2012

    tnx luis but there isn't any unknown device file in device manager and i went to cmos bios but usb configuration is already enabled

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  • Contributor
  • 29 Answers

In the process of upgrading your bios maybe your usb connector was tempered with

Posted on Dec 14, 2012

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Posted on Jan 02, 2017

  • 51 Answers

SOURCE: USB powerloss?

As you have already stated that the port in question can run a standard optical mouse, the port seems to be working fine.

Sometimes the drivers for a USB device need to be installed for each USB port. Maybe you have installed these drivers for 3 of your 4 USB ports, but not for the one in question, result of which is the problem you face.

Posted on Oct 16, 2007

  • 277 Answers

SOURCE: USB not working after resetting bios on toshiba a135

try using other usb port,,, .. run device manager and remove auknown device file... restart the computer...and also go to the cmos bios and find usb configuration the enable it..


Posted on Mar 14, 2008

falseadress
  • 45 Answers

SOURCE: Aspire 3610 USB ports

I think you might have a loose cononection for the data ports. Try putting a little bit of force on the usb device. Up, down left right. NOT ALOT. If it starts working when force is used, i tihnk you should try to take it apart and resolder the connections. If it dosen't work, uninstalling the driver and installing.

Posted on Jun 01, 2008

myob247
  • 1342 Answers

SOURCE: usb ports quit working in gateway laptop

This article references a Dell computer but maybe it'll work for yours.

Posted on Jul 04, 2008

mediarich
  • 188 Answers

SOURCE: Usb ports do not work

Try going into device manager and deleting the USB devices, Reboot and let Windows try and reinstall the drivers. If that doesn't fix your problem post that it didn't work and I'll get another message.

Posted on Dec 16, 2008

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Step 1
Before you start working on the USB port, make sure that your device is not the problem. If the computer says that the there is a new USB device but that it cannot use it, typically there is a problem with the device's driver and not the USB port. If this is the case, your best option is to re-install or upgrade the device driver. Try inserting the device to another computer. If the device works, most likely the problem is with the computer and not your device.

Step 2
Try rebooting the machine. Rebooting a computer resets all of the software to the default state and will clean up many issues. The start up process also checks all of the devices on the computer and can sometimes fix a USB port. First shut down the machine. Connect the USB device up to the computer and start it. This reboot will sometimes fix a bad USB port.

Step 3
Try attaching the USB device on to another USB port on the same computer. If the device now works, the old USB port probably has a hardware or BIOS issue. Skip to step 5 to try to fix a bad USB port through the BIOS. Fixing a hardware problem on a USB port requires working on the motherboard which is typically more expensive just adding a new USB ports.

Step 4
Uninstall your computer's USB device bus manager. The device manager controls the USB access and sometimes gets corrupted. Fixing the USB device manager requires administrator rights on the machine. The best way to uninstall the device bus manager is to right click on your computer's icon and select properties. This will bring up the hardware settings for your machine. Click on the hardware tab and select the device manager. The device manager lists all of the devices on the computer. The next step is to open up the "Universal bus controller" option. Right click on all of the items under this option and uninstall them. Once all of the devices have been removed, restart the machine with the USB device connected. Upon reboot, windows re-installs the USB device manager. Most of the time, this will fix the USB port.

Step 5
The next thing to try is to check the BIOS. Restart the machine and enter the BIOS setup screen. You should check to make sure all of the USB ports are active. If they are, you should try resetting the BIOS settings to the defaults. The BIOS reset will sometimes fix USB port. But if it does not you will have to consider upgrading the BIOS. Upgrading a computer BIOS is very dependent on the motherboard manufacturer and you will have to visit your computer manufacturer's web site for detailed instructions.

Step 6
The last trick to try to fix a USB port is to repair your OS. Sometimes the USB drivers can get corrupted and break the USB ports. You can reinstall the system files onto the computer which should fix the USB port. Your data files should not be changed in this process, but it is a good idea to do a full backup of the computer ahead of time. In windows, an OS re-install is done by loading up the windows installation CD/DVD and selecting the repair windows installation. Just follow the steps and you often have a fixed USB port at the end of the process.

Please rate me if this solution works for you

Thanks......Have a great time.

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