by removing cmos battery
11755
No, removing the bios battery on a laptop will not reset bios settings.
The best method to reset a BIOS password depends on what BIOS the computer has. Common BIOS's include AMI, Award, IBM and Phoenix. Numerous other BIOS's do exist, but these are the most common. Some BIOS's allow you to require a password be entered before the system will boot. Some BIOS's allow you to require a password to be entered before the BIOS setup may be accessed. The general categories of solutions to reset a BIOS password are: Using a Backdoor BIOS Password Resetting the BIOS Password using Software Resetting the BIOS Password using Hardware Vendor Specific Solutions for resetting the BIOS Password
reset password for dell inspiron 1520 As far as I know , the laptop bios password cannot be erased by battery discharging , which means u had to go to Dell After-Service for help .
If it's a desktop computer and you forgot the BIOS power-on password, you can reset the BIOS by closing the "cmos reset" jumper on the motherboard.
To reset the bios password you can contact the manufacturer and request the bios master password for your laptop or computer. On the motherboard there is usually a reset jumper or contacts. This will put the BIOS into factory settings and reset the clock. You will need to get the technical data for your motherboard to find out where this jumper is. On a desk top computer it will be a jumper that shorts two pins and is stowed in a normal , running, position. Move it across for a few seconds then return to normal position. On laptops, it will be a pair of gold contacts on the board, that need shorting with a wire or tweezers. I have ususlly found them under the memory modules.
Remove the BIOS battery from the motherboard for approx 10mins to reset the password
Either set on under your Windows login - or in the BIOS system. WARNING - if you forget the password set in the BIOS you will have to re-format your whole computer !
Try turning it on via the BIOS. if a password is there find a battery in the laptop and remove it.
Reset the CMOS on the motherboard, that should clear all data set in the BIOS. Apart from that, you can't "hack" the bios password. Don't hack anyway. It is bad and a serious offence.
A physical cable lock port (like a Targus cable lock which secures the laptop to a table to prevent theft) is next to the T43's USB ports on the left side. It looks like a vertical slot.To prevent access to the T43 at Boot up, you can set a BIOS password that will require you to enter the password as soon as you power up . To set the password, Hit F1 when you are starting the laptop and change the password from the BIOS menu. Important, unlike a PC, if you forget the T43's BIOS password ... no one can reset or recovery it.If you are using Windows, simply set password protection on the Windows Screensaver.
if you don't know what the password is you will have to reset the bios by tripping a jumper or removing the watch battery on the motherboard.
If it is a Mercury 1300 then remove the case and pop the internal BIOS battery - job done!