Satellite L300 - webcam doesn't work after BIOS upgrade

I recently upgraded BIOS to 2.2 and the webcam has stopped working. It disappeared and there is one unknown device in the device manager in the universal serial bus controller.
I tried everything even with new clean fresh Vista OS but nothing like there is no webcam I installed the drivers but not recognized so I would like if I can to downgrade BIOS to 1.5 and to fix the webcam. If I can cos I need it. Is that possible?
Tnx

Hi
I dont think its BIOS issue.
First of all the unknown device (webcam) appears in the device manager and this means that an device has been recognized by system and BIOS.
The only reason why its listed as unknown devices is: the driver is not installed properly.
After BIOS update you have to set the BIOS back to default. Access BIOS pressing F2 and within the BIOS you can use the button F9 to set it to default and F10 to save the changes.
After that you should boot up the unit and should go to device manager.
Mark the unknown device and delete it from the list (if possible)
Go to control panel -> software and check the software list for webcam software (from chicony). Uninstall this software if its part of the list.
Now reboot the notebook.
Clean the OS using CCleaner and install the correct webcam software for Vista. Note: please pay attention to 32bit or 64bit version.
If the installation would fail, try the Toshiba recovery disk and set the notebook back to factory settings.
By the way: BIOS downgrade is not possible because the old BIOS is not downloadable.

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