I recently ran into this issue on my acer aspire one and it took many hours of digging to finally solve this problem, ended up flashing the bios to try to clear the password but that didn't work but I came across this and sure enough it worked.
Forum PostA few days ago a client called and asked if we can reset or remove bios passwords. He wanted to set a bios password on his Acer Aspire One so nobody could access it without supplying the right password. This is exactly what he did - part of his email:
"I restarted the AA1, pressed [F2] to access the bios and found where I could change the password. I typed a new password twice in order to make sure I typed the same password, saved the new password and rebooted the AA1. And yes, the AA1 now had power-on password protection. I typed in my password, but no… Wrong password! I typed it once more, but with same result: Wrong password! OMG! What went wrong? I did type the same password twice – the same I am now trying to get the bios to accept, but no luck. Please, please, help!!!"
What happened here is simple and Acer is fully aware of this so called "bios bug" It is not a bios bug, it has been designed by Acer in this way in order to make more and more money from customers sending the devices back. They've designed the bios in a such way as the password you've typed in lower case (99% of the cases) is converted automatically into an upper case one.
For example if your password was "santamaria18" it will now work only if you type "SANTAMARIA18"
Another part of the whole fraud (as I cannot call it anything else) is that the password cannot be longer than 8 characters. Therefore going back to the above example we understand that our bios password "santamaria18" is actually "SANTAMAR". That is a huge difference!
So remember, if’ you’re planning on playing with bios passwords on your AA1, keep caps-lock in mind!
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