What was supposed to be a dream come true for BlackBerry fans turned out to be a nightmare for some. The BlackBerry KEYone, which is probably the best QWERTY BlackBerry Android phone money can buy was near perfect for those obsessed with QWERTY keyboards. It had, however, one very fatal flaw. The screen would drop or be dislodged, sometimes with very little force. Although it denies any manufacturing error, BlackBerry promised it would strengthen the adhesive used under its screens. And that promises has started rolling out to retailers and carriers for users to buy or exchange.