g récupéré un ordi portable qui est bloqué dès l'allumage,

l'écran est tout noir et on me demande un mot de passe, que puis je faire???

Bonjour,

Tu peux trouver le "maintenance manual" ici :
http://tim.id.au/laptops/toshiba/equium%20l300d%20satego%20l300d%20satellite%20l300d%20l305d%20pro%20l300d.pdf

et on peut y lire (page 2-2) :

Before going through the diagnostic flowchart steps, verify the following:
Ask the user if a password has been registered and, if so, ask him or her to enter the
password. If the user has forgotten the system password, use a jump wire to make a
short circuit on M/B B500 location, then turn the computer power on. When booted,
the computer overrides password protection and automatically erases the current
password.

Donc contrairement à de nombreux portables, il est possible d'effacer le mot de passe. Par contre aucune idée de l'emplacement de ce B500.
Tu peux tenter de retirer la pile RTC ou bien regarder la sérigraphie sur la carte mère. Sinon les moteurs de recherche ne sont pas à négliger !

Edit :

Voir ici la réponse de lester escobar :

http://www.hardwareanalysis.com/content/topic/73786/


Re: How to reste Toshiba L300 bios password
that password is easy to remove:

Information:
Follow these steps to remove / disable the BIOS (CMOS) Password on the Satellite L300 / L305 / L300D / L305D models:
1. Turn the computer OFF, if it's on.
2. Disconnect the AC adapter and remove the battery.
3. Remove the memory module cover, on the bottom of the computer.
4. Remove any memory modules that are installed.

go to the link to see picture

http://www.csd.toshiba.com/content/support/bulletins/su2044812...ilm-06.jpg

5. With the computer oriented as in the photo above, grasp the Mylar film at the upper left corner and peel it to the right -- far enough to expose the B500 solder pads (see photo below). Attach a 4" long piece of tape to the underside of the Mylar film. Do not remove the film completely, because it may be difficult to re-attach it correctly.
6. Insert one of the memory modules into the innermost socket (at left).
7. Secure the tape to the computer's case, as shown below, to keep the Mylar film from covering the solder pads.

go to the link to see picture

http://www.csd.toshiba.com/content/support/bulletins/su2044812/009.jpg

8. Reconnect the AC adapter.
9. Short the B500 solder pads on the system board. Needle-nose pliers or a flat-blade screwdriver works well to short them.
10. While continuing to short-circuit the solder pads, turn the computer on, and continue shorting the pads until the Toshiba Logo Screen disappears. If the password has been successfully removed, the computer will not display a BIOS password prompt before starting Windows or another OS.
11. Shut down Windows or other OS, making sure the the computer turns off.
12. Disconnect the AC adapter.
13. Remove the memory module and re-position the Mylar film over the system board.
14. Re-insert all memory modules.
15. Re-attach the memory slot cover.
16. Re-insert the battery and connect the AC adapter.
17. Restart the computer to verify that the password prompt no longer appears. If it does still appear, then repeat this procedure, starting with step 1

For toshiba, its really an official procedure made in toshiba standard labs......it works 100% as i have tested many times and it works......some times people burnd the motherboard because they dont use proper antistatic device and they burn motherboards with discharge....

If this procedure doesnt work with a flat headed screw driver use a paper clip or something metalica that short two points of B500 pads.....

You can make a solder bridge - two points with a fine iron tip

Mich-60
J’espère que tu as pu régler ton problème avec ton toshiba actuellement. A propos de la batterie toshiba satellite, n’oublies pas de bien l’entretenir pour ne pas perdre rapidement d’autonomie.

Salut,

Joli détérage de topic, regardes la date