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Toshiba Laptop BIOS Recovery

April 1st, 2009 by Dev Team in BIOS, Password Info, Privilege Escalation

Toshiba laptops aren’t like most laptops where you can remove the BIOS battery and let it sit for a few hours to reset the BIOS. So what do you do? There are three forms of BIOS password removal being used currently by Toshiba:
1. Parallel port wraparound connector
2. Shorting a jumper, with power and with no power
3. Challenge/Response code

Method 1. Printer Dongle Method:

Works with Portege, Satellite, Satellite Pro, Tecra and Libretto Laptops of the following model numbers :

100(1xx) 200(2xx) 300(3xx) 400(4xx) 500(5xx) 600(6xx) 700(7xx)
1000(1xxx) 2000(2xxx) 3000(3xxx) 4000(4xxx) 7000(7xxx) 8000(8xxx)

(A15-S 127) (1415-S 173) SERIES & Some DVD Models
The “xxx” above means that each x can be any number, i.e. 1xx could be 101, 103, 111, 112 etc.

* First cut a plug from an old DB25 printer cable, and open the casing of the plug. This is how the pins look:

* Now connect:
o Pin 1 to Pin 5 and to Pin 10 ( go from 1 to 5 and from 5 to 10)
o Pin 2 to 11
o Pin 3 to 17
o Pin 4 to 12
o Pin 6 to 16
o Pin 7 to 13
o Pin 8 to 14
o Pin 9 to 15
o Pin 18 to 25

It should look something like this:

Plug it in and bootup

METHOD 2. Shorting a jumper:


In order to clear a BIOS of Compal manufactured units you need to use the NO POWER method, units manufactured by Inventec need to be to be POWERED ON to rest the BIOS.

To reset Compal units:

1. Turn off the POWER
2. Remove the battery and power cord
3. Peel back any black mylar (if any) covering the jumper
4. Using a flat screwdriver, short the jumper by connecting the two jumper points
5. Reset the computer and verify the BIOS has been reset, if not then repeat steps

Inventec units can skip steps 1 and 2

METHOD 3. Challenge/Response Code:


The challenge/response code method consists of matching a Challenge code ( power the machine up,press ctrl,then tab,then ctrl, then enter) generated on your machine and matching a Response code generated by Toshiba and calling a Toshiba Tech Support Agent.


added 5/31/10:

Satellite p100 and pro p100 : with laptop off,remove wifi card and short pads marked jp8 for 10 secs

satellite l10,l20,l30 and pro l20 : with laptop of short pads marked jp1 for 15 secs (l20 short pads marked g1)

satellite m100 and tecra a6 : with laptop off ,remove memory and insulation under memory and short pads marked clr1 for 15 secs

(satellite 17** series,1100,1110,1130, 1200, 1900, 2430, 3000 P20,P30, P33, A30, A70, A80, M40X, M50,M60, M70, M100)as above

tecra a3,s2,a5,a6 : pads are by memory modules and will be labeled J1, J2, J5, J7, J9 or clr1

satellite a100,tecra m7 : remove keyboard and short pads marked c88 while turning laptop on, remove short as soon as Toshiba logo appears

Satellite A100 (PSAA2A-02C01N) : Remove Memory Cover from base of machine
Release & remove right side Memory Module,Lift black plastic insulation
Locate & short PAD500 Pin 1 & 2 together,Power on machine while still shorting Pin 1 & 2
As soon as the TOSHIBA logo appears, remove short

TECRA A4 & Satellite M40

Open modem & Wi-Fi card cover,Remove mini PCI Wi-Fi card
Lift up black plastic,Locate & short C738 Pads 1 & 2 together
Power on machine while still shorting Pads 1 & 2
As soon as the TOSHIBA logo appears, remove short

tecra s1 : TECRA S1

Open palm rest cover,Remove mini PCI Wi-Fi card
Lift up black plastic,Locate & short C5071 Pin 1 & 2 together
Power on machine while still shorting Pin 1 & 2
As soon as the TOSHIBA logo appears, remove short

NOTE SOMETIMES THESE WILL TAKE A COUPLE OF TIMES TO WORK,BUT THEY WILL WORK.

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