My sisters laptop keyboard just stopped functioning completely out of no where, the laptop wasn't dropped and has always been taken good care of, i cant access bios or log into any user because they are password protected, i have tried restarting it and using an external USB-keyboard nothing seems to work any ideas? i have gone as far as to take it apart to see if any of the cables slipped out or any damaged components were notable but still nothing.. any help will be highly appreciated
Laptop Model is Toshiba Satellite c855d-s5100