I have a Razer Blade Stealth that has several keys that work only intermittently. After some poking around, I’m guessing the problem is some slight battery bloat that is pushing up on the key pads and causing them to lose sensitivity. I am looking for a replacement battery (or another solution) to solve this issue.
I believe this is a hardware issue as the issue is often temporarily fixed by pressing up on the bottom of the laptop, hard.