Hi everyone, welcome to HowFixit. In this video guide, I gonna show you how to force reset
bios settings on Alienware 15 R4 laptop To disassemble Alienware 15 R4 laptop,
you will need the following tools: Phillips 1 screwdriver
Plastic opening tools Tweezers
I also recommend using a magnetic mat during the repair process, which is especially useful in case
of this laptop. Throughout this disassembly, keep track of each screw so you can put them
back in the right places - this will help successfully reassemble your device. And
don't worry about losing any of screws, all of them will definitely remain on the magnetic mat.
In the description, I left links where to buy all necessary tools.
Turn the laptop over and remove all the screws on the bottom cover.
Use a plastic tool to open the laptop case. I recommend using a plastic tool so as not
to damage the laptop case when opening it. Disconnect the battery cable from the motherboard.
Disconnect the BIOS battery for a couple of
minutes. This will help reset the BIOS to factory settings.
If the laptop cannot save the BIOS settings, then you need to replace the battery with a new one.
Disconnecting the bios battery can help if the laptop freezes when turned on during the
initialization of devices, but you should not expect this method to reset the bios password.
To reset the bios password you need a programmer and the ability to work with a soldering iron,
therefore, this is a separate recovery process that requires much more repair experience.