This is the simplest free method. If successful, it clears the volatile BIOS settings. Disconnect Power : Unplug the AC adapter and remove the main laptop battery Locate CMOS Battery
: Plug the CMOS battery back in, reassemble, and check if you can enter the BIOS (press F2 at the Panasonic logo). Method 2: Shorting the Reset Pins (Jumper Method) panasonic cf53 bios password reset free
Disconnect the AC adapter and remove the main laptop battery. This is the simplest free method