It's the tablet that you want. What happens is that the ribbon cable, which is attached with conductive adhesive starts to separate. Even if you are...
You mean a trill, like "amarillo" where tha "R" is trilled? It's tongue action, not throat action. Exhale while letting the tip of your tongue flick...
Be sure to re-load firmware whenever you change boards or swap accessories or install new accessories. The current firmware on the board or accessory...