Toshiba satellite L505-GS6000 Universal Serial Bus controllers is not shown in the device manager

if your motherboard is fried and you are running windows it is probably best to find a replacement motherboard of the same make and model so when you go to start it up it should work.

if not you can attempt to have it fit into the laptop but laptop motherboards don't have a standard size so some modifications might need to be made

W 7 First, please disconnect all USB devices and then perform the following steps:

Click "Start" button, type "devmgmt.msc" (without quotation marks) in the "Search" bar and press "Enter". Click "Continue" if necessary.

In Device Manager, double click to expand "Universal Serial Bus controllers", right click on the Host Controller, click "Uninstall" and click "OK".

Repeat the step 2 to uninstall all items under "Universal Serial Bus controllers".


Then, restart your computer and Windows 7 will reinstall all USB controllers automatically. Click start control panel scroll to folder options view place a tick in show hidden files folders and drives
this may vary depending on your operating system for XP or earlier click start right click on computer select properties device manager scroll down universal serial bus controllers you could see a yellow question / exclamation mark? ! or a red X you will need to update/reinstall drivers right click to reinstall drivers if you can see your usb drive but its not working ports (com&lpt) right click update driver if this fails to fix the problem Check the USB leads that attach to the motherboard usually red white green black make sure they are securely seated and have no dust build up on them dust will cause static and a lot of unforeseen problems to a computer and its parts if you need more help with this or if i have missed the problem post a reply Hope it helps.

Have you upgraded the OS? Try a restore to a date before this issue. OR a Recovery.

w7 First, please disconnect all USB devices and then perform the following steps:

Click "Start" button, type "devmgmt.msc" (without quotation marks) in the "Search" bar and press "Enter". Click "Continue" if necessary.

In Device Manager, double click to expand "Universal Serial Bus controllers", right click on the Host Controller, click "Uninstall" and click "OK".

Repeat the step 2 to uninstall all items under "Universal Serial Bus controllers".


Then, restart your computer and Windows 7 will reinstall all USB controllers automatically. for xp or earlier click start right click on computer select properties device manager scroll down universal serial bus controllers you could see a yellow question / exclamation mark? ! or a red X you will need to update/reinstall drivers right click to reinstall drivers if you can see your usb drive but its not working ports (com&lpt) right click update driver if this fails to fix the problem Check the USB leads that attach to the motherboard usually red white green black make sure they are securely seated and have no dust build up on them dust will cause static and a lot of unforeseen problems to a computer and its parts if you need more help with this or if i have missed the problem post a reply Hope it helps.

go to device manager,Universal Serial Bus controllers and see if there's a device with "?" sign on it,if there are,uninstall the device and restart your computer

Sounds like a bad wireless card or the card slot.I would try replacing the wireless card.When wireless cards go bad they either cause the laptop to not boot,low or no signal reception or the card isn't seen at all by the motherboard or operating system or .both.If it isn't showing in device manager either with a caution sign or installed the card is most likely bad

Hello

Ok, at the link below you will be able to download all the chipset drivers. Just click on the loink, you will be directed to the dwnload page.

http://www.getpcmemory.com/drivers/download-toshiba-satellite-pro-l300-notebook-windows-xp-drivers/

Kind regards
Andrea

in your laptop goto device manager. universal serial bus controller. go to appropriate port. Right click- properties - there you will c a power management tab. uncheck Allow the computer to turn off this device to save power. click ok.

1. Checking USB device status in Device Manager

1. Right-click My Computer on the Windows desktop and then click Properties.
2. Click the Device Manager tab to display the Device Manager window as shown at the right. (For Windows 2000 systems, click the Hardware tab and then the Device Manager button.
3. In the Device Manager list, click the + sign next to Universal serial bus controller.
4. Verify that a USB host controller and a USB root hub are listed below Universal serial bus.
   
5. If Universal serial bus controller, USB host controller or USB root hub are not listed, close the Device Manager and go to USB port incorrectly configured in BIOS
6. If Universal serial bus controller, USB host controller and USB root hub are listed but one or more display a yellow exclamation point, go to USB controller IRQ conflict
7. If you have Windows XP, right-click the Host Controller and select Properties from the drop-down menu. If you see this status message in the Properties window: The drivers for this device are not installed (code 28), go to Windows XP USB 2.0 driver not installed .
8. If Universal serial bus controller, USB host controller and USB root hub are listed but one or more display a red X, go to USB controller or root hub disabled in Windows Device Manager.

USB port incorrectly configured in BIOS NOTE: The procedure in this section is intended for advanced users only. Incorrect BIOS settings could prevent your computer from starting or operating normally. If you are not experienced in making changes to your computer BIOS, consult your computer instructions or contact your computer manufacturer for assistance before attempting the steps below.

1. Follow the instructions of your computer to view the BIOS settings. These settings are sometimes called CMOS settings or system setup.
2. To view the BIOS settings, press a key, such as F2 or Delete, just after you turn on the computer. Instructions often appear on the screen briefly when you turn on the computer. Also check the instructions and manuals provided with your computer.
3. Look for USB Interface or a similar setting in the Advanced Setup, Peripheral Configuration or another section of your computer BIOS settings.
4. Follow the onscreen instructions or read the computer documentation to enable the USB port.
5. Follow the onscreen instructions to save the new settings and restart the computer.

1. USB controller or root hub disabled in Windows Device Manager

1. Right-click My Computer on the Windows desktop and then click Properties.
2. Click the Device Manager tab. (On Windows 2000 and XP systems, click the Hardware tab and then the Device Manager button.)
3. In the Device Manager list, click the + sign next to Universal serial bus controller.
4. Click the line in the Device Manager containing the red X.
5. Click the Properties button. (On Windows 2000 and XP systems, click Properties on the Action menu.)
6. In the Communications Port Properties box, click the Resources tab.
7. Re-enable the USB device by clicking the Enable Device button and follow the onscreen instructions.