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CmosPwd decrypts password stored in cmos used to access BIOS SETUP. Works with the following BIOSes. ACER/IBM BIOS. AMI BIOS. AMI WinBIOS 2.5. Award 4.5x/4.6x/6.0. Compaq (1992).
Compaq (New version). IBM (PS/2, Activa, Thinkpad). Packard Bell.
Phoenix 1.00.09.AC0 (1994), a486 1.03, 1.04, 1.10 A03, 4.05 rev 1.02.943, 4.06 rev 1.13.1107. Phoenix 4 release 6 (User). Gateway Solo - Phoenix 4.0 release 6. Toshiba.
Zenith AMI With CmosPwd, you can also backup, restore and erase/kill cmos. Contents. CmosPwd Download CmosPwd is free, it's distributed under GPL Cmos password recovery tools 5.0. DOS/Windows 9x and Windows NT/W2K/XP/2003/. Versions,. Source only CmosPwd works and compiles under. Dos-Win9x.
Windows NT/W2K/XP/2003/. Linux. FreeBSD and NetBSD CmosPwd Development To get information about new CmosPwd release or development, subscribe to. Hints for various manufacturers Unlock code generator Check it contains programs to unlock some. Compaq. Dell. Fujitsu-Siemens.
Hewlett-Packard. Insyde H20. Phoenix. Sony.
Samsung EEPROM on laptops On laptops, the password is usually stored in an eeprom on the motherboard and not in the cmos. You need an eeprom programmer/eeprom reader (electronic device) to retrieve the password.
![Code Code](http://codeontime.com/blog/2008/09/custom-templates-for-ajax-grids-in-data/image01.png)
If you erase the cmos (ie. Cmospwd /k) and if the password is really stored in an eeprom, you won't be able to boot anymore. You can get/buy eeprom programmer in electronic shops or labs, you need another PC to use it. You can desolder the eeprom with hot air or you can try to 'clip' the eeprom.
With the eeprom programmer, backup your eeprom and run cmospwd /d /l eeprombackup. If you don't see the password, you can try to fill the eeprom with zero or FF, don't forget the reset the cmos. Acer. Acer 630: eeprom 93c56?.
Acer Aspire 1522: Under the keyboard, search for switch SW1 on the left of the fan jack, switch the pin 1 to on, turn on the notebook, press F2 and set a new supervisor password, turn off and switch back SW1. Acer Travelmate 280: search for SW1 switch on the motherboard and enable the switch 3 to disable the password request. Acer Travelmate 6592g: Disconnect the yellow cmos battery (near the DVD bay but hard to access) and reconnect it after a few hours, hold F2 during first boot. Award BIOS. AWARD 4.50 have a backdoor, a generic password: AWARDSW. SOYO motherboard have 'SYMB' as master password for Award 4.51. CmosPwd give equivalent passwords for Award BIOS, not original one.
Dell The official method is to contact Dell Technical Support. Dell Technical Support will request the Service Tag and Express Service Code from the bottom of the Latitude. If the current user is not the original Latitude owner, Dell will from the original owner with only the Service Tag and Express Service Code from the tag on the laptop.
In his line of work, Instructables user Harrymatic sees a lot of Toshiba laptops come across his desk, some of which are protected with a BIOS password. Typically, in order to make it past the BIOS lockout and get access to the computer, he would have to open the laptop case and short the CMOS reset pins or pull the CMOS battery. The process is quite tedious, so he prefers to use a simpler method,.
The plug itself is pretty easy to build. After soldering a handful of wires to the back of a standard male D-sub 25 connector in the arrangement shown in his tutorial, he was good to go. When a laptop is powered on with the plug inserted, the BIOS password is cleared, and the computer can be used as normal. It should be said that he is only positive that this works with the specific Toshiba laptop models he lists in his writeup. It would be interesting to see this tried with other laptop brands to see if they respond in the same way.
Since no laptops are manufactured with parallel ports these days, do you have some tips or tricks for recovering laptop BIOS passwords? Be sure to share them with us in the comments. Posted in, Tagged, Post navigation. Used to work, about 6 years ago:)). Nowadays most bios pw (challenge/ response ) are insanely easy to remove via keygen or failing that some hw method, eeprom on the board itself most time i only need bios to boot from cd/dvd and re-install, usually on encrypted boot in which case sometimes it’s easier to take the hdd out, ofc it will fall to 2nd,3rd boot option (cd/dvd), erase partitions + mbr through linux, put hdd back in, cd in then restart it will fail to boot from hdd and just start up cd, obvious but i’ve seen plenty of people wnot think this.
Toshiba’s from 2-5 years can randomly get BIOS passwords if the BIOS wasn’t updated. Usually clearing it involves unplugging the AC adapter and battery, opening the memory bay, removing the memory and then jumping a solder pad for about 15-30 seconds.
It varies for each series, but J1 open is a pretty common label. You may have to peel back plastic film to get to it too. If you do succeed in removing a random one, make sure you grab the newest BIOS update so it doesn’t happen again.
I’d guess I’ve taken off 10-15 in the past few years with this method. I just pop it in the microwave for 45 seconds. The microwaves erase the password. I like when the CMOS battery has its own little access panel, but you don’t see that very often nowadays. I haven’t, anyway.
BIOS passwords p.ss me off because i can’t even boot from USB without it, if it’s set the annoying way. Of course, if you really want to protect your data, do that, plus build your computer inside a safe and weld it shut. Or, it’s a safe, just lock it i guess. And bolt it down. And laser tripwires, which text you if tripped, and cameras. CMOS battery for holding password in memory? Man, this must be a very old laptop (1990s?).
As above, they switched to EEPROM in most cases. The EEPROM would usually be a small SOIC8 package that was even silkscreen identifiable as “PWD1” or something similar. If you were not inclined to dig out an eeprom reader, it was simlpy a case of shorting two pins together and booting up the laptop.
This caused the eeprom to erase itself and wipe the password. Had this a few times on DELL machines, you can find exact details on google.
Also as posted above, it’s all old hat anyway. Look up the guy “Dogbert”. He has reversed engineered a lot of BIOS and given away password calculation algo’s free. Some bad bad people have even put his free work into commercial products. If you are stupid enough, you may have purchased a calc yourself off ebay.