CMOSPWD - Sheet1 Page 1 CmosPwd 2.4 is a cmos/bios password...

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Unformatted text preview: Sheet1 Page 1 CmosPwd 2.4 is a cmos/bios password recovery tool. It's freeware. You can freely distribute it. Bios and history Acer/IBM 1.3 AMI BIOS 1.0 AMI WinBIOS (12/15/93) 1.4d AMI WinBIOS 2.5 1.0 Award 4.5x 1.0 & 1.4c & 2.3 Compaq (1992) 1.0 Compaq (Try...) 1.4 Dell version A08, 1993 1.0 IBM (PS/2, Activa ...) 1.3 IBM Thinkpad boot pwd 1.5 IBM 300 GL 1.5 Packard Bell Supervisor/User 1.4 Phoenix 1.00.09.AC0 (1994) 1.0 Phoenix 1.04 1.4 Phoenix 1.10 A03/Dell GXi 1.4c Phoenix 4 release 6 (User)1.6 & 2.2 Gateway Solo - Phoenix 4.0 r62.4 Toshiba2.1 Zenith AMI 1.5 Usage cmospwd [/f] [/d] cmospwd [/f] [/d] /[rlw] cmos_backup_file restore/load/write cmospwd /k kill cmos cmospwd [/f] /m[01]* execute selected module /f AZERTY keyboard /d to dump cmos /m0010011 to execute module 3,6 and 7 Platforms- Dos-Windows version Well, ... it works!- Linux version Users can work on cmos backup but they need root priviledge to use ioperm function to have full access to cmos.- Windows NT Users can work on cmos backup. To work on cmos memory, gwiopm need to be Sheet1 Page 2 installed and running. gwiopm gives direct port I/O access for specified ports to user-mode process (ring 3) using Ke386SetIoAccessMap and Ke386IoSetAccessProcess kernel functions. You need administrator priviledges to install this driver instdrv gwiopm c:\tmp\gwiopm.sys To remove the driver, run "instdrv gwiopm remove". Divers- Award 4.50PG There is an universal password AWARD_SW. (d8on, 589589 ... works too)- Award Differents passwords give the same 32-bit CRC, so CmosPwd can only give one of them. Use the numeric keypad.- COMPAQ LTE 5300 notebook Tolga Sinan Guney: there is a reset jumper on the motherboard- DIGITAL PC300, Phoenix 4.0 Rel 6.0,0 Rene Pocisk: cmospwd /k works- DELL Latitude CPi 233ST Notebook Ole Jensen: passwords are stored in EEPROM- DELL Latitude CPi D266XT Robert Rafai: Passwords are stored in an eeprom (24c02). To remove the password,- clear the cmos- flash your BIOS: get the file on internet and use an eeprom programmer- store 00 00 ... on the eeprom 24c02- Fujitsu ICL aksion: passwords are stored in EEPROM- Hewlett Packard Passwords are often (always) stored in EEPROM There are reset jumper on some models- Phoenix There is a backdoor in old version of Phoenix BIOS, the universal password is "phoenix".- Toshiba Differents passwords give the same 32-bit CRC, so CmosPwd can only give one of them.- IBM Thinkpad Setup password TP 770: Get eeprom 24c01 contents and run cmospwd on this file. TP 765D: Read eeprom 93c46- Siemens Nixdorf PCD-4ND Michael: You can clear the password of this phoenix 1.03 with "cmospwd /k" What to do if you can't use cmospwd to clear your cmos ? You can use debug to reset cmos CRC stored at 0x2E-0x2F debug-o 70 2E-o 71 0-q Sheet1 Page 3 What to do if cmospwd don't work on your PC ?...
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This note was uploaded on 06/03/2011 for the course SOFTWARE 11 taught by Professor Maussan during the Spring '11 term at Central Texas College.

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CMOSPWD - Sheet1 Page 1 CmosPwd 2.4 is a cmos/bios password...

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