I recently got the yoga 13 and love it. I first upgrade the ram to 8gb and it worked flawlessly. I just installed a second mSata ssd (256gb) and it's recognized and works, but now the volume up key seems to be stuck... It constantly shows the volume at 100 because it thinks it's being pressed. If I hold volume down it will go down but immediately go back up as soon as I let go. Any suggestions? I've already tried taking the keyboard out and reinserting the ribbon cable but that didn't change anything.
Actually I believe the problem may be with the actual volume keys. I changed the hotkey settings in the bios and the problem persists without touching anything, so the f3/volume up key isn't the problem, but the actual volume button it seems.
It turns out the very left screw under the keyboard was just a tad too tight and causing the button problem. Loosening it a little fixed my problem. Sorry for making a thread and answering my own question, but hopefully it'll help someone else down the road