TechSpot

HP / Dell / etc. Laptop password help (April - July 2008)

By LegendLuke
Sep 23, 2006
  1. FearBSD

    FearBSD TS Rookie

    Thanks too all who commented.. was pins 3 & 6 and my problem has since been solved.. all I needed was a paperclip, and a screwdriver, can't believe all that soldering went on before. So when all in all it was user error.. Thanks again.
     
  2. wardino

    wardino TS Rookie

    Please help me in solving this dell password authentication.

    Hi guys! Im new here and i need help please

    i have an old dell CPi laptop given to me,its protected by a password authentication. I really dont know what to do..i dont know the password..
    please help me...

    #ZQSTF**-595B
     
  3. lamo

    lamo TS Rookie

    ozmaia, to remove admin bios password, you'll need to unsolder bios chip, and reflash it using external programmator.
     
  4. dbpk

    dbpk Banned

    he dosnt need to reflash bios chip,nor erase the eeprom like DELL paperclip cause the laptop wont boot!!!, he only need to read the eeprom dump with a I2C rs232 interface reader and try to to locate the password....
     
  5. kimsland

    kimsland Ex-TechSpotter Posts: 14,525

    How do users get and read with a I2C rs232 interface reader?
    http://www.emicros.com/pic1.htm
    Is the above link one?
    If so, where does it plug into, and how do you read the chip?
     
  6. dbpk

    dbpk Banned

    to clear bios admin password for some laptops read steps below,
    Under Dos/ MAKE A BOOT FLOPPY OR CD, you can use debug command to reset cmos CRC stored at 0x2E-0x2F type:
    debug
    -o 70 2E
    -o 71 0
    -q

    reboot
     
  7. kimsland

    kimsland Ex-TechSpotter Posts: 14,525

    Without looking up those debug commands
    Will they also hurt harddrive files or filesystem
     
  8. Ozmaia

    Ozmaia TS Rookie

    dbpk , thanks man on information but it sounds very complicated task to whom never done "mission" like that before. Even though I'm ex technician and definitely not frightened clipping reader wires to EEProm, I'm quite rusted :approve: (maybe I'm lazy too :rolleyes: ) and so I need more information how to perform all procedure (for example at which EEProm pins wires have to connected etc). Can you please give me more details and open my eyes?

    Anyways, many thanks dbpk :grinthumb
     
  9. dbpk

    dbpk Banned

    no hurt at all :)
     
  10. dbpk

    dbpk Banned

    please try first debug commands...seems easy!!!
     
  11. Ozmaia

    Ozmaia TS Rookie

    dbpk,

    debug
    -o 70 2E
    -o 71 0
    -q

    didn't work for me, laptop is still asking for admin password :confused:
     
  12. kimsland

    kimsland Ex-TechSpotter Posts: 14,525

    Obviously your Admin password, did not fall into that group
     
  13. dbpk

    dbpk Banned

    try to build an eeprom 24cxxx series i2cinterface reader (see piture),and download PONYPROG TO READ eeprom dump first locate the chip unsolder you must have 8 pins eeprom power it with 2 external AA bateries at gnd(4) and vcc+(8) solder two wires at SCL AND SDA as shown... see the picture,,,,and read eeprom dump!!
     

    Attached Files:

  14. lamo

    lamo TS Rookie

    dbpk, again you tell me the bull****. did you do disassembly of nx8220/nc8230? there's no password in eeprom on this MB. and there's no 24cXX eeprom on this board, only 93c4x eeprom(this information is correct for nx61xx series, nc61xx series, nx82xx,nc8230 etc). dbpk, if you don't know, don't speak.
     
  15. dbpk

    dbpk Banned

    no offence and plz dont use bad words,,,realy i didnt had such hp laptop to chek wether it had 24cxxx eeprom, i give instructions for help that.all, and for 93cxx is a microwire eeprom and also is easy to read!!!
     
  16. lamo

    lamo TS Rookie

    dbpk, ok i won't, but please, watch your words. 93cxx eeprom is used for MAC-adress and other service information storing.
     
  17. dbpk

    dbpk Banned

    not agree with i ve unlocked some laptops model in the past wich store password in microwire eeprom like 93cxxx series, and i have more experience than u in this ..so please wash ur mouth instead of using censored words.
     
  18. lamo

    lamo TS Rookie

    dbpk, can you tell me some of laptop models with password in eeprom 93c46?
     
  19. dbpk

    dbpk Banned

    sure;) here some of :
    Acer 630: eeprom 93c56
    Sony pcg-fx950: eeprom 93c46
    Toshiba 74600C: eeprom 93c56

    hope you r not big headed as ALIDABIRI!!! :))), hope tha can help.
     
  20. champ

    champ Banned

    wardino dell cpi

    when you want i send you the documentation to remove the password
     
  21. lamo

    lamo TS Rookie

    dbpk, ok, i'll chek this information. and i know, where you got it :) i have this txt-file too :)
     
  22. dbpk

    dbpk Banned

    yes true, but i swear that in the past i remember i.ve unlocked two laptops bye reading microwire eeprom. regards ;)
     
  23. alidabiri

    alidabiri TS Rookie Posts: 441

    i see you are still B.S'ing people with your nonsense.
     
  24. wardino

    wardino TS Rookie

    yes please send me the documentation on how to remove the password..thanks in advance..
     
  25. champ

    champ Banned

    re discusion

    is this a discusion forum or a help forum???:blackeye:
     
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