> Its quite likely that Apple does use the new screws to lock you out of the device. But its also likely they used them because they're cheaper or somehow easie

> Its quite likely that Apple does use the new screws to lock you out of the device. But its also likely they used them because they're cheaper or somehow easier for them for some reason besides keeping owners out of devices. If you were speaking of the manufacturing line, and of a fact that iDevice v1.1 had phillips off the line, while later iDevice v1.2 had pentalobe off the line, I would agree. (i.e., maybe pentalobe is more amenable to robotic insertion, etc.) But, there is no "cheaper for them" argument for exchanging the screws on existing devices brought in for repair work. Unless the old screws are damaged beyond reuse by being removed, exchanging the screws is an additional, unnecessary, expense. Which leaves one to speculate, why exchange the screws for repair items? There must be some reason?