Clearing BIOS power on passwords on Toshiba laptops

February 6, 2012 by
Filed under: Computer Tips & Techniques, Laptop Repair 

So you have a Toshiba laptop that will not boot up because it has a black screen that says enter password but you did not set a boot password, what do you do? We have had several customers come into our shop with this problem. They were messing around in BIOS and when they restarted the laptop this is what they had. On older laptops you had to dis-assemble the unit to get to the CMOS battery but the newer ones have a reset jumper that will clear the password and return the laptop to normal operation.The reset jumper can be found under the memory cards on the bottom of the laptop. You will need to unplug the unit and remove the battery. Next find the memory cover and remove it. You will have one or two memory cards that will need to also be removed.

Now remove the memory and set it aside in reinstall after resetting the BIOS.
Now look for the reset jumper location. On the model we are working on the jumper looks like this. The jumper location is just a pattern on the board that is made of copper. It can look like either of the two styles shown here.

Jumper styles

It may not be in the exact location that is shown here and it may be located under a plastic sticker but it should be located in the memory compartment. You will need to use a small flat blade screwdriver to short the jumper (just connect both sides of the copper jumper) and hold it there for about 20 seconds to clear the password. Once the 20 seconds has passed you can remove the screwdriver tip, reinstall the memory and battery. Turn the laptop over and turn it on, it should boot up right to the windows login screen, if not retry the rest and hold the jumper a little longer.

Let us know if this helped and on which laptop you did it on so other readers will know.

The two we reset today are S205 and the L455D series. This is the L455D jumper

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37 Comments on Clearing BIOS power on passwords on Toshiba laptops

  1. Ian on Wed, 3rd Oct 2012 3:18 am
  2. Thanks for the walkthrough, worked on a Toshiba L450D, took a little longer than 20 seconds to clear though, around 45secs.

  3. Greyhead of gemany on Sat, 15th Dec 2012 2:23 pm
  4. Hi folks at CC,

    great help from you, found this little jumper on a
    Toshiba Satellite P220D-132 ( sold in Germany )
    I’ll have a picture for you within the next few days,
    it was under the two memory cards,

    Thanks again for your great help and regards to all of you
    a german PC Senior
    Greyhead Sasse

  5. Gracie on Sat, 29th Dec 2012 8:52 pm
  6. Yippee! it worked thank you, thank you, this solution was very clear, first class, was at the point of giving up and thinking of sending it to Toshiba ….. which I resented because that would have been £150 to start with! Surely Toshiba should be able to provide these instructions on their website!

    Can’t thank you enough :)

    A hapless novice from UK.


  7. Gracie on Sat, 29th Dec 2012 8:53 pm
  8. Yippee! it worked thank you, thank you, this solution was very clear, first class, was at the point of giving up and thinking of sending it to Toshiba ….. which I resented because that would have been £150 to start with! Surely Toshiba should be able to provide these instructions on their website!

    Can’t thank you enough :-)

    A hapless novice from UK.


  9. John Zaborniak on Thu, 3rd Jan 2013 7:44 pm
  10. Tried to find the bios reset on my A100-172 but it was not under the memory
    Are there any other locations it may be at???
    Unit it about 4 years old..

    Any help would be appreciated!!!!



  11. admin on Fri, 4th Jan 2013 8:57 am
  12. Hello John,

    Under the right memory chip is a jumper location called PAD500. Use a small screwdriver to short out the two metal contacts and power on the machine while the jumper is shorted. Once the screen shows Toshiba remove the screwdriver and the machine should be reset. If it does not on the first try just power it off and redo the process.

    CCL Tech

  13. Ali on Fri, 18th Jan 2013 11:55 am
  14. how to remove bios password of toshiba dynabook SS M35 146C/2W????

  15. Erik Hallberg on Sun, 10th Feb 2013 8:36 pm
  16. Hi, I have a Toshiba Tecra M3 PTM30A with the user password problem. This laptop seems to be extra tricky, any tips? (Tried Printer dongle, All sorts of jumpers, disconnecting Cmos battery and more, no effect). Thank you in advance,


  17. binson mathew on Fri, 1st Mar 2013 2:05 am
  18. how to short the jumpers of toshiba laptops of a100 series

  19. CCL_TECH on Fri, 1st Mar 2013 9:54 am
  20. Hello,

    On the A100 series the jumper to short is located in the memory compartment under the black plastic label on the motherboard. Peel up the label and you should find the jumper labeled PAD500. You need to use a small metal screwdriver to connect those two little pads to short them out. Next while the two pads are shorted out you need to turn the unit on and keep them shorted until you see the Toshiba logo on the screen. Remove the short and the laptop should have the password cleared.

  21. binson mathew on Tue, 5th Mar 2013 6:48 am
  22. i hav did according to you but i don’t hw to short it using a screwdriver…..i mean how to connect the screw drver to short it?

  23. Fred Flintstone on Thu, 14th Mar 2013 4:34 pm
  24. The A-105 unit series BIOS clear is NOT in the memory compartment, follow THIS Link:

    IT is under the Wireless LAN card under the keyboard :-) It works, I just did it on an A-105.. I used a FAT flat blade screwdriver to short the pins…

  25. Mabel on Tue, 19th Mar 2013 3:52 pm
  26. Hi! One client need to reset the password of toshiba m2v s330. I have a cd but dont work. I find a reset jumper no like the picture but said reset (dont work neither). Any ideas?

  27. jackie on Thu, 21st Mar 2013 10:14 am
  28. I just typed in Toshiba for the password and it worked

  29. Biorj on Mon, 25th Mar 2013 10:26 pm
  30. Hi everybody
    Same issue in a Toshiba Satellite L745-S4210. Any idea on how to reset the password?

  31. Mike on Thu, 11th Apr 2013 12:40 pm
  32. I’ve tried this tip several times to no avail; is there something I’m missing?

    Toshiba Sat L455D

  33. Alex on Wed, 22nd May 2013 5:05 pm
  34. This Worked Great for me..THANK YOU!!!

  35. James on Sun, 2nd Jun 2013 5:09 pm
  36. Anybody know where the bios reset is on a toshiba satellite C875-S7103?

  37. Romano on Sat, 8th Jun 2013 1:18 am
  38. I have Toshiba Tecra M5. Where I can find these pins to reset BIOS. Maybe you can help me.
    Thanks a lot.

  39. Scott Orsbon on Fri, 14th Jun 2013 11:01 am
  40. You would have to power the laptop on while shorting this, right? That may be the missing step for some people.

  41. Nevis1 on Sun, 16th Jun 2013 1:23 am
  42. Worked great on the Toshiba Satellite M35X-S149. BIOS reset is nder the memory, bring a magnifying glass!

  43. GLEN mosedale on Mon, 8th Jul 2013 8:26 pm
  44. work on a tosh l450d-11v thanks

  45. eric on Tue, 13th Aug 2013 3:20 pm
  46. thanks , found connector under mem chip, very small Toshiba m35x-s149

  47. Joe on Tue, 5th Nov 2013 8:58 am
  48. I have Toshiba Satellite A 135-S2256 There’s no reset jumper under the memory stick. Do I need to pull the battery instead on this model. thks

  49. Phillip on Sat, 23rd Nov 2013 12:33 am
  50. Good job worked first time
    Thanks a lot guys was about
    To give up. You saved me a lot
    Of trouble. Thanks

  51. bill on Mon, 27th Jan 2014 12:47 pm
  52. I have a Toshiba c855d-s5201 bios password.. The jumper no where to be found around the memory modules. even took the back completely off and found no jumper like what is described above.. I am usually pretty savvy at this but not this one.
    Any help would be greatly appreciated.

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  55. Rick on Tue, 4th Mar 2014 7:22 am
  56. I have a Satellite E205 model. Can you tell me where the reset jumpers are on this model?

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  59. Rick on Wed, 11th Jun 2014 2:27 pm
  60. I asked about clearing the password on a Toshiba E205 model. No one has posted anything since my post. Are you still on this site. Thanks

  61. Bran on Tue, 15th Jul 2014 12:38 pm
  62. Hey,

    Worked fine on P845t-S4102. The only thing we did different was pressed down the copper jumper with the power cord plugged in, with the battery, hard drive and memory detached.

    It worked like a champ!! Thanks!

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