You'll need to take to the nearest authorized Toshiba repair facility;
three copies of your proof of purchase receipt, drivers license, passport, living will, credit card, and three red Gummy Bears.
Then the rep will obtain a Master password, and remove it.
OH, I'M JUST KIDDING!!
BIOS passwords are usually set by someone who doesn't want the computer accessed. Mostly by teenagers who think their info is Top Secret, lol!
"1) Open modem and Wi-Fi Cover"
From me; Wireless Module under Wi-Fi Cover looks similar to this,http://www.ebay.com/itm/Toshiba-Satellite-L15-L20-L25-M40-Wireless-G-WIFI-Card-/110524124060?pt=US_Internal_Network_Cards&hash=item19bbc04b9c
2) "Remove Mini PCI Wi-Fi Card."
Basic example shown above in link. Note the two terminals, where the Wireless Antenna wires connect to. They MUST go back to the SAME terminals. Suggest make a mark on one terminal, and one wireless antenna lead connector. (Round 'eye' terminal)
3) "Lift up the black plastic."
From me: The black Mylar small sheet of plastic. Only lift so far, and the attaching glue will keep it in place, when you let go of it.
This way the Mylar plastic small sheet can be reused.
4) "Locate and short C738 Pin 1 and 2 together."
C738 is a Capacitor. VERY small in size. Should have C738 marked near it. It is under the black Mylar plastic sheet.
There are two contact pins, or may be small rectangular, or square pads. There are Two.
1 and 2.
Take a metallic tool that just goes across from pin 1 to pin 2, and touch it to them.
(Flat tipped Jewelers screwdriver? That's what I use)
5) "Power on machine while still shorting Pin 1 and pin 2"
From me; Keep the tool touching the two contact pads, or pins, and turn the laptop on.
6) "As soon as the Toshiba logo appears, remove short"
As soon as you see the Toshiba logo come up on the LCD screen, remove the tool from the contact pads, or pins.
7) "If machine boots, password has been removed."http://www.laptop-repair.info/toshiba_bios_password.html
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-> Tecra A4 and Satellite M40