My keyboard and trackpad don't work for some reason. I read on the internet that I have to do a hard reset (taking out the battery and disconnecting the AC cable, than holding the power button for 30 seconds) to make it work again. So my question is how to perform a hard reset if the battery is INBUILT. I looked into the user manual of my laptop but I couldn't find anything. My laptop works with a USB mouse and keyboard, and the laptop keyboard works in BIOS. I also tried to find an option to disable the battery in BIOS but couldn't find anything.