Having problems with your Toshiba Tecra A4 Notebook ?

Help me an lock my laptop toshiba pta40u 0tz009

\015 I do not kno w the password my laptop it is on the bioa side\015

Answers :

If any of these processes are done incorrectly it may result in complete system failure or permanent system damage (you've been warned!).


Some\015\012Toshiba bios passwords can be reset using the Key Disk.exe utility, to\015\012do this you need a 1.44Mb floppy disk. Format the disk using Windows\015\012and then with a hex editor, change the first five bytes of the second\015\012sector to 4B 45 59 00 00.

Then put the floppy into your machine\015\012and boot it up, you'll be asked for a password, just press Enter. Then\015\012when you're asked to set the password, type Y then Enter, this will get\015\012you into the bios configuration where you can then type in a new\015\012password.

Aside from the KeyDisk, you can build a parallel\015\012Loopback plug, this is a simple device that plugs into the parallel\015\012port of the machine and removes the password when you boot it up.

To make it you will need a 25 pin DB25 plug, take the plug apart and join these pins using some old cable;
Pins: 1-5-10, 2-11, 3-17, 4-12, 6-16, 7-13, 8-14, 9-15, and 18-25

\015\012db25m.gif\015\012

Plug it into your parallel port and boot up your machine, the password should be removed as soon as it boots.

Note: This will work on majority of older Toshiba's (1995 – 2002) and obviously only ones that have a parallel port.
Remove BIOS battery, this will clear the password, if else u will have to flash the BIOS-Rom chip,
in either way this means dissassembling the laptop...

good luck
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