Trying to fix my brother's laptop (HP Pavilion). The keyboard isn't working. I've tried every tip I could find, make sure sticky keys weren't on etc. I randomly decided to hold down a bunch of keys last night and the keyboard started working...but an hour later it stopped working. Now when I hold down some keys (alt, ctrl, end, fn, arrows, etc) I get it to type for a second, or try to open an app, before the keyboard becomes unresponsive again.
Any ideas?