Reset BIOS Password - Acer TravelMate C312XMi
We have 80 of these laptops and this one looks as though it got missed out when securing them with BIOS passwords. Anyway, this PC was issued to the Head of ICT when he started a few years ago. He brought it round to us this week with the laptop asking for a password on boot up. He claims to have no knowledge of how it got their. Regardless, Acer are asking for £70 to remove it.
I decided to have some fun and went on a Google search for the service manual, after about 2 hours of forum jumping, I found one, it's for the C300 but the C310 is almost identical. I took the laptop apart and put it back together, took the best part of the whole day, and I never found the CMOS battery or BIOS chip. Anyway, I put it back together and lo and behold, the boot password has disappeared. Result, dunno how though! :p
Anyway, there is still the issue of a BIOS password. I have tried loads of backdoor passwords and cmospwd /k to no avail. Infact, cmospwd /k hung the laptop and it wouldn't boot for about 5 mins, but it came back up and still had the password.
Is there anyway I can clear the password? I can't boot into any other devices because I need to enable the option in the BIOS! Anyway I may be able to change the boot priority in Windows? I've flashed the BIOS, but it hasn't removed the password.
Bypassing/Resetting bios password on Acer c300 tablet pc
Probably too late. But, After several hours of searching forums etc. have just come across a solution to this issue.
Originally Posted by Zoom7000
The c300 I was given had a password on the bios at boot and to get into the bios.
1. Under the keyboard on the c300 you'll find the cmos battery encased in blue plastic. To remove the start up password. I switched off the laptop removed the main power supply and battery and removed the battery lead for the battery for about 10secs. Then reversed process.
This allowed me to boot from a liveCD as the hard drive I had installed was unpartitioned.
I installed a version of kubuntu on the hdd and then realised I actually needed a different version. Restarted to boot from CD - but boot order was wrong(hdd first) and bios was password protected.
So after another night of searching and looking through service manual(http://www.7hertz.com/download/acer%...20tmc300sg.pdf) I discovered the solution.(pg 90)
2.Under the keyboard (on the motherboard) are two small dip switches. You can see them through the metal cover over the motherboard. The first(closer to screen hinge) of these is labelled "chkpw"(in the service manual - but not on the motherboard).
So taking a guess that chkpw stood for check bios password. I switched this to the opposite side, restarted and just like that could access the bios and change the boot order, bios password etc etc.
You could probably just do this last step over pulling the cmos battery - but I haven't tested this.
Hope this helps!