Question about Acer Aspire 4720 Notebook

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I need to crack the bios password of an Acer Travelmate 4720 laptop and reset the fingerprint.

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Hi you can try the default backdoor passwords for phoenix (phoenix, PHOENIX, CMOS, BIOS) please tell me if it works.

Posted on May 08, 2009

  • Maanita Chadha
    Maanita Chadha May 08, 2009

    else just open your back side of your notebook. Open the screws and remove the bios battery (a circular shaped sitll battery). If possible change the battery with a new one or keep that battery out of laptop for some time. Now start notebook without the battery and shut down.Then reinsert the battery to laptop and start again. The password should be resetted by this process.

  • Maanita Chadha
    Maanita Chadha May 08, 2009

    AMI Backdoor BIOS Passwords
    Reported AMI backdoor BIOS passwords include A.M.I., AAAMMMIII, AMI?SW , AMI_SW, BIOS, CONDO, HEWITT RAND, LKWPETER, MI, and PASSWORD.

    Award Backdoor BIOS Passwords
    One reported Award backdoor BIOS password is eight spaces. Other reported Award backdoor BIOS passwords include 01322222, 589589, 589721, 595595, 598598 , ALFAROME, ALLY, ALLy, aLLY, aLLy, aPAf, award, AWARD PW, AWARD SW, AWARD?SW, AWARD_PW, AWARD_SW, AWKWARD, awkward, BIOSTAR, CONCAT, CONDO, Condo, condo, d8on, djonet, HLT, J256, J262, j262, j322, j332, J64, KDD, LKWPETER, Lkwpeter, PINT, pint, SER, SKY_FOX, SYXZ, syxz, TTPTHA, ZAAAADA, ZAAADA, ZBAAACA, and ZJAAADC.

    Phoenix Backdoor BIOS Passwords
    Reported Phoenix BIOS backdoor passwords include BIOS, CMOS, phoenix, and PHOENIX.


    Resetting the BIOS Password using Software
    Every system must store the BIOS password information somewhere. If you are able to access the machine after it has been booted successfully, you may be able to view the BIOS password. You must know the memory address where the BIOS password is stored, and the format in which the BIOS password is stored. Or, you must have a program that knows these things.

    You can write your own program to read the BIOS password from the CMOS memory on a PC by writing the address of the byte of CMOS memory that you wish to read in port 0x370, and then reading the contents of port 0x371.

    !BIOS will recover the BIOS password for most common BIOS versions, including IBM, American Megatrends Inc, Award and Phoenix.

    CmosPwd will recover the BIOS password for the following BIOS versions:


    • 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

    Resetting the BIOS Password using Hardware
    If you cannot access the machine after if has been powered up, it is still possible to get past the BIOS password. 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.

    If all else fails, you may have to clear the BIOS password by resetting the RTC (Real Time Clock) IC (Integrated Circuit) on your motherboard.

    Many RTC's require an external battery. If your RTC is one of this type, you can clear the BIOS password just by unsocketing the RTC and reseating it.

    RTC's which require external batteries include:


    Most RTC chips with integrated batteries can be reset to clear the BIOS password by shorting two pins together for a few seconds.

    You will see more than one option for some chips due to testing by various people in the field. Remember to remove power from the system before shorting these pins.





    RTC Chip

    Pins


    Dallas DS1287A
    TI benchmarq bp3287AMT
    3 (N.C.) and 21 (NC/RCL)

    Chips & Technologies P82C206
    12 (GND) and 32 (5V)
    -or-
    74 (GND) and 75 (5V)

    OPTi F82C206
    3 and 26

    Dallas Semiconductor DS12887A
    3 (N.C.) and 21 (RCLR)
    You should be able to discover how to reset the BIOS password stored in most RTC (Real Time Clock) chips by reading the manufacturers data sheet for that RTC. Some RTC's, like the Dallas DS1287 and TI benchmarq bq3287mt cannot be cleared. The solution to resetting the BIOS password on systems with those RTC's is to purchase a replacement RTC chip. How inconvenient!

    Vendor Specific Solutions for Resetting the BIOS Password
    Resetting an Acer BIOS Password
    For information on how to recover an Acer BIOS password, please refer to How do I reset an Acer BIOS password?

    Summary
    The BIOS password can be reset on any system. Some systems are easy, others are more difficult. Any BIOS password can be reset with sufficient time, money and effort.

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I have an acer travelmate 7730g. I turned off the fingerprint securlty and am now presented with a password request before anything boots up. The thing is I don't remember ever setting this password...


I ran into the same issue with a bios password The laptop is a newer Acer TravelMate and I was able to remove the password. Remove the hardrive first. Then remove the memory and unplug the black and red wires from the battery about 2 inches away wait a then plug it back in. With the harddrive out still I turned the computer back on and then back off, put the harddrive back in.

You will end up clearing the bios settings including the fingerprint readers settings.

May 16, 2011 | Acer Computers & Internet

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Reset bios password acer Travelmate 2410


I know some methods to reset bios password.
1. The best and easiest method: Close OS and shut down the electricity power of computer. Open your computer box, take out the cmos battery from the mainboard. Then the bios password will be reset to blank. Put it back after a few minutes.
2. Follow some tutorials. For example the tutorials:
Reset ACER Aspire 3610 BIOS Password - Only 8 Steps

Top 3 methods to crack bios password!
3. Use the bios password recovery tool , but that is not free!

So I would suggest you the 1st method. Hope it helps.

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Hi I am having a ACER TRAVELMATE 4720 LAPTOP I forgot the CMOS password kindly help me..


when I have had this issue in the shop, we would open the bottom of the laptop , find the cmos battery (looks like a watch battery) and short out its terminals for a minute or so. this will reset the bios to defaults, and likely dump any passwords set in the bios. if this helps you leave some feedback. Cheers

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ok when i get work tomorrow iwill give you

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It is asking for the password that was set up with the finger print reader,Not the bios password.

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you won't able to crack the password. you either have to flash the bios or reset it by opening up the laptop and using the "bios flashing jumper"

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this page is a link to all drivers available
http://www.acerpanam.com/synapse/forms/acerdrivers.cfm

choose your model its will give you a pdf file

click on the desired drivers

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Acer TravelMate 5520 is bio-probtected and unknown password


Try This:

http://www.computerhope.com/issues/ch000235.htm

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