Acer bios lockdown

Well, I have a frustrating problem. My Acer laptop is malfunctioning and there is a twist to the problem.
* My tech info is: Acer, Aspire 5672WLMI, with Phoenix bios
* My bios is locked and i don't remember the password, I have tested the manufacture defaults by the way.
* My Windows is damaged and produces an error that I have fixed in the past with a live cd.
* My computer firsts boots the hard drive and causes that i can't reset the password through software.

These twists are making this hard for me. I cant boot into a rescue cd because the system fails to load and i can't change the boot order in the bios because I have no access.

This problem would be over if i could gain access to the bios and i have tested the phoenix bios standard backdoor passwords and many more but the don't work. And acer has a ram memory that keeps the password so i can't reset it by taking the battery for the bios out for few minutes. I have tried to find the jump switch on the motherboard but can't find it and i don't think there is one.

But i have possible solutions, that is to replace the hard drive so i could install a new os and reset the bios through software. Or if someone could tell me what the master bios password for acer is, then that would solve my problem? And maybe there is a jump switch and someone can guide me to it?

Note that i am not going to send the notebook to a tech and pay for it, because there are more things wrong with the notebook and it wouldn't be worth it, the repair would cost alike a new notebook!

So any help would be well appreciated.
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ArnarFreyrConnect With a Mentor Author Commented:
thanks for your answers, but i have solved this.

The solution was to unplug the hard disk so i could boot an live cd and from there hack the bios
password and it did the trick. Now i can recover the data in the computer and then format and the
rest doesn't have to be explained.

Thanks again guys
Gary CaseRetiredCommented:
You said you've already tried the "... phoenix bios standard backdoor passwords ...", so I assume you've already tried these, but just in case:  phoenix   PHOENIX   CMOS   BIOS

On some notebooks (don't know if this one will do this or not) you can reset CMOS by unplugging the notebook; removing the battery; and then holding the power switch for 60 seconds.   Try that and see if it helps.

The following has also been noted to work on some other forums with this same problem:

=>  Hard power-off (hold the power button until the laptop turns off)
=>  Unplug the AC adaptor
=>  Remove the battery
=>  Plug in the AC adaptor
=>  Hold Ctrl and turn the power on.   You should arrive at a black screen.
=>  Hard power-off again, then turn the power on.
Repeat the above sequence several times if it doesn't work the first time [On one forum a poster noted it finally did the trick after about 8 tries]
Gary CaseRetiredCommented:
... I should also note that if this notebook uses a Security Chip protected BIOS then none of the above will work.   The most well-known feature of the security chip -- and one that really frustrates legitimate owners who don't realize how secure this chip is and manage to forget their password --- is that it stores any BIOS passwords you set in a VERY secure manner.

When you set a password to access your PC it is stored in the chip.   But it CANNOT be reset through any reasonable means ==> it requires either replacing the chip (which requires SMD soldering skills to remove/replace the chip), or replacing the motherboard.

Some older laptops have special means of resetting the passwords via parallel port loopback adapters and/or shorting pins for password reset ---> but these don't work with security-chip enabled systems.

I do not know if the Aspire uses this degree of protection => but it's very common on laptops in the last few years; and this is a relatively new system that may very well be protected with a chip.   The manual doesn't note what level of protection it provides, but it does note that you have to return the system to Acer if you forget the password ... so that tends to support the possibility it's security-chip enabled.

... Basically, I'd try the suggestions I made above => but if none of them work, it's probably protected by a security chip; and based on your comment about "... not going to send the notebook to a tech ..." because "... it wouldn't be worth it ..."  then I'd just replace the notebook.

Note that from a security perspective security chips are a very good thing => but clearly you do NOT want to forget a password on systems with this level of protection.   If you buy a new notebook, be sure you do not forget the password !!

I was wondering if you could tell me what you used to hack the BIOS to remove the problem? I have run into the same issue and can't find any solution for it.
I'm not positive, but what "garycase" suggested in his first post might have solved my problem. I tried his method a number of times, and after quite a few tries gave up. Left the laptop sitting plugged in and all for a few hours. Came back, booted up and jumped in to BIOS, and voila no more supervisor password.

I'm baffled, but it's the only thing that makes any sense to me!
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