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How to clear cmos password on toshiba L300 and other models
12-26-2009, 03:18 PM
Post: #1
How to clear cmos password on toshiba L300 and other models
Hey folks, I came across this procedure about a year ago and have used it on several different toshiba laptops. This works 100% if there are two solder points labeled "B500".

Ok so usually next to the ram slots is where you will find the "B500" solder points allthough I once located them under the keyboard (cant remember exact model) but do some poking around and you will find them.

At this point I assume you have the power adapter unplugged from the unit as well as the battery removed and that you have pressed the power button a few times to drain any remaing voltage from the system.

Once you find the correct solder points (example)http://www.csd.toshiba.com/content/s...044812/009.jpg then find a suitable method to short the two points together, I find the simplest way is to solder a small length of wire between the two,but a pair of tweezers works too.

Now that you have the two points shorted together you need to plug in the power adapter and press the power button (still keeping the points shorted) until you hear a beep and the screen will usually say something like invalid config, defaults loaded.

So now we can turn off the unit and remove our soldered length of wire or tweezers, etc. and reassemble the unit.

Congratulations you have just removed the password on your laptop.

Also as a side note, if there is a hdd password enabled also once the bios pass is cleared the hdd will most likely have to be replaced not allways but for some reason even if the hdd pass is known it is possible that it won't accept the password. But hdd's are cheap and you can find one for less than the cost of sending the unit in to toshiba for password removal.

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12-26-2009, 08:01 PM
Post: #2
RE: How to clear cmos password on toshiba L300 and other models
Nice guide, is tis only for Toshiba's?

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12-26-2009, 08:06 PM (This post was last modified: 12-27-2009 02:17 AM by gabefauver.)
Post: #3
RE: How to clear cmos password on toshiba L300 and other models
Well no, the procedure is basically the same for all but the solder points are in different location. example I have done this on a (don't remember the exact model) newer ibm mini style laptop (no cdrom, solidstate hdd,) and the solder points were harder to get to. Full dissassemble (almost) top side of board almost under edge of cpu heatsink and were labeled with an "xxx". I will try and find some pics of different models and brands and the target solder points.

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12-27-2009, 12:34 AM (This post was last modified: 12-27-2009 12:38 AM by gabefauver.)
Post: #4
RE: How to clear cmos password on toshiba L300 and other models
Satellite P100 & Satellite Pro P100
With notebook turned off;
Open Wi-Fi Cover
Remove Mini Card Wi-Fi card
Locate & Short Out JP8 for 5 Seconds
Remove short and turn on
NO BOOT
Press & Hold Power button to turn off
Turn on again & password is cleared


Satellite L10, L20, L30 & Satellite Pro L20
With notebook turned off;
Open Wi-Fi Cover
Locate & Short Out JP1 for 15 Seconds (Satellite L10)

Satellite L20/Pro L20 short out G1

Satellite M100 & Tecra A6
With notebook turned off;
Open Memory Cover
Remove Memory
Remove Black plastic insulation
Locate & Short CMOS CLR1 for 15 Seconds

All the following models use the same password removal process.
Satellite: 17xx Series, 1000, 1110,1130, 1200, 1900, 2430, 3000 P20,P30, P33, A30, A70, A80, M40X, M50,M60, M70, M100

Tecra A3/S2, A5, A6
The jumper is always located under or near the memory modules
Depending on the model the jumper could be labelled J1, J2, J5, J7, J9 or CMOS CLR1 (M100 & A6)

Satellite A100 & Tecra A7
Remove Strip cover
Remove 2 x K/B screws
Move K/B Unit up but don’t disconnect
Release & Remove Mini Card Wi-Fi Card
Locate & short C88 Pin 1 & 2 together
Power on Machine while still shorting Pin 1 & 2
As soon as the TOSHIBA logo appears, remove short
If machine boots, Password has been removed

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
If machine boots, password has been removed

TECRA A4 & Satellite M40
Open modem & Wi-Fi card cover
Remove mini PCI Wi-Fi card
Lift up black plastic
Locate & short C738 Pin 1 & 2 together
Power on machine while still shorting Pin 1 & 2
As soon as the TOSHIBA logo appears, remove short
If machine boots, password has been removed

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
If machine boots, password has been removed

TE 2300
Remove 2 x B12 screws from bottom of system
Remove strip cover
Remove keyboard screws 1 x B2.5 & 1 x SF4
Remove 1 x 4mm screw & Wi-Fi cover
Remove mini PCI Wi-Fi card if fitted
Locate & short points as shown in picture
attatched to this post.
Power on machine while still shorting points
Short for 5 seconds
Nothing will appear on the screen
Turn system off holding down power button
Password is now removed


Satellite A60
Open Wi-Fi slot cover
Lift up black plastic
Locate & short C561 Pin 1 & 2 together
Power on machine while still shorting Pin 1 & 2
As soon as the TOSHIBA logo appears, remove short
If machine boots, password has been removed


SOURCE: http://www.laptop-repair.info/toshiba_bi...sword.html


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12-27-2009, 10:05 PM (This post was last modified: 12-27-2009 10:06 PM by gabefauver.)
Post: #5
RE: How to clear cmos password on toshiba L300 and other models
Dell CP and CPI Latitudes and many others (check list at bottom for models that this won't work on)

Short pins 3 and 6 together on the 24c02 chip and continue shorting while powering on the unit.
The chip is below the processor so you have to solder two very small wires and bring them outside the laptop then reinstall the processor. Refer to picture for which pins to short. On some other hp and dell models the chip may be in a different location that is easier to get to and a paperclip may be used.

Dell models that can't be unlocked with shorting method:

Dell Latitude: D420 D430 D431 D520 D 530 D531 D620 D630 D630c D631 D820 D830 120L 131L 150L

Dell Inspiron: 600m 630m 640m 700m 710m 1000 1100 1150 1300 E1405 1420 1501 E1505 1520 1521 E1705 1720 1721 6400 9100 9200 9300 9400

Dell XPS: M1210 M1330 M1710 M1730 M2010 M140 M170 Gen 2 Gen2

Dell Precision: M90 M2300 M4300 M6300

DELL VOSTRO series


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03-02-2010, 01:15 AM
Post: #6
Bug RE: How to clear cmos password on toshiba L300 and other models
Would any one be able to tell me if this method would work for a toshiba pro l40 model psl43e.
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03-02-2010, 09:28 AM
Post: #7
RE: How to clear cmos password on toshiba L300 and other models
Gabe has been pretty busy lately but I will see if I can check the pinouts and see if its possible (it should)

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03-04-2010, 02:52 AM
Post: #8
RE: How to clear cmos password on toshiba L300 and other models
thanks i'll be waiting
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03-19-2010, 12:28 AM
Post: #9
RE: How to clear cmos password on toshiba L300 and other models
There are many known ways to reset the password:
* By removing the CMOS battery
* By using the motherboard jumper
* By using MS DOS command
* By using software
* By using Backdoor BIOS password

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10-23-2011, 09:42 PM
Post: #10
RE: How to clear cmos password on toshiba L300 and other models
Using software and MS DOS commands won't work if you can't get past the password request.
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