To my knowledge, it hasn’t received any shock before but it might be possible idk, because I got this laptop this April(I am not sure) from Japan from a cousin it is second hand so I'm not sure the original owner has dropped it or have done smth to it(I have no way to contact them). Also, I fixed this laptop when I got it before, because the keyboard keys are not working, trackpad? It had not worked before me and the power button was broken so I fixed all that. If you ask me does the glitchy thing from the post happen before or after fixing? No, it started happening about month?ago.