Greetings, trunkschan, This is apparently not an isolated experience for HP owners. Important to note the sequence of the blinking home button - it may be indicating a code denoting a repair symptom or need for BIOS update. Here is a link to a discussion of this on like models from the HP community-towards the bottom a person assembled a consumer-level solution: https://h30434.www3.hp.com/t5/Notebook-Boot-and-Lockup/Black-screen-blinking-cap-lock/m-p/6341137#M123175 Hope this helps, even a little, DLC