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Clearing CMOS or Bios Passwords - Laptops

On desktop PC's there is usually a pin on the motherboard that you can jumper out to clear the password but laptops are a different animal. I ran into a very informative website posting that gave great information about backdooring the bios passwords.

http://www.tech-faq.com/reset-bios-password.shtml

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I cannot recover my bios password could someone help plz?


Hi,

Most motherboards have a jumper switch usually situated close to the CMOS battery. The jumper usually connects over 2 pins with an open pin next to these. By moving the jumper over to the open & center pin you will reset all BIOS settings, including your BIOS password. Move the jumper back to its original position before turning your PC on.
In some instances you will find no BIOS jumper. In such a case you can clear the password by removing the CMOS battery from the motherboard for a few seconds and then replacing it.

Best wishes,
Graemevm

Jul 25, 2011 | eMachines EL1352G-01w (884483537679) PC...

2 Answers

how to reset bios password


There are 3 ways to do this, first the easiest, changing it directly from the bios, of course if you could do that you probably would not need to. second, you will have a button / switch / jumper that will be on the bottom side of the motherboard, usually accessible through the memory or wireless card compartment. third is the actual small 3 volt battery that is hooked to the motherboard usually directly next to the button / switch / jumper.

Oct 29, 2009 | Lenovo ThinkPadĀ® Z60t (2511FDU) PC...

3 Answers

please help me reset my bios password on acer travelmate 2410


First you need to remove the laptop battery at the back side. Find some screw there and remove it locate the CMOS battery and jamper.

The BIOS password is stored in CMOS memory that is maintained while the PC is powered off by a small battery, which is attached to the motherboard. If you remove this battery, all CMOS information (including the BIOS password) will be lost. You will need to re-enter the correct CMOS setup information to use the machine. The machines owner or user will most likely be alarmed when it is discovered that the BIOS password has been deleted.

On some motherboards, the battery is soldered to the motherboard, making it difficult to remove. If this is the case, you have another alternative. Somewhere on the motherboard you should find a jumper that will clear the BIOS password. If you have the motherboard documentation, you will know where that jumper is.

If not, the jumper may be labeled on the motherboard. If you are not fortunate enough for either of these to be the case, you may be able to guess which jumper is the correct jumper. This jumper is usually standing alone near the battery. If you cannot locate this jumper, you might short both of the points where the battery connects to the motherboard.

Oct 08, 2009 | Acer 4220-2346 Notebook

2 Answers

Is there a backdoor bios password for a Toshiba laptop (model #1805-S253)? A previous employee password-protected the bios but "neglected" to tell us what it is.


The Backdoor passwords are not determined by the laptop manufacturer - the backdoor passwords depend on the manufacturer of the bios itself. Is it an Award biosor an AMI bios etc?

Award BIOS backdoor passwords: ALFAROME BIOSTAR KDD ZAAADA ALLy CONCAT Lkwpeter ZBAAACA aLLy CONDO LKWPETER ZJAAADC aLLY Condo PINT 01322222 ALLY d8on pint 589589 aPAf djonet SER 589721 _award HLT SKY_FOX 595595 AWARD_SW J64 SYXZ 598598 AWARD?SW J256 syxz AWARD SW J262 shift + syxz AWARD PW j332 TTPTHA AWKWARD j322 awkward

AMI BIOS Backdoor Passwords: AMI BIOS PASSWORD HEWITT RAND AMI?SW AMI_SW LKWPETER CONDO
Phoenix BIOS Backdoor Passwords: phoenix PHOENIX CMOS BIOS
Misc. Common Passwords ALFAROME BIOSTAR biostar biosstar CMOS cmos LKWPETER lkwpeter setup SETUP Syxz Wodj
Other BIOS Passwords by Manufacturer Manufacturer Password VOBIS & IBM merlin Dell Dell Biostar Biostar Compaq Compaq Enox xo11nE Epox central Freetech Posterie IWill iwill Jetway spooml Packard Bell bell9 QDI QDI Siemens SKY_FOX TMC BIGO Toshiba Toshiba
Toshiba BIOS Most Toshiba laptops and some desktop systems will bypass the BIOS password if the left shift key is held down during boot

Jan 23, 2009 | Toshiba Satellite 1805-S253 Notebook

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