The innards of the new HP15c CE

Hi, 

I tried to work on the keyboard of a HP15c CE. I opened it, taking out the 5 screws (do not forget the one beside the battery!). Here is what can be seen inside:

If you are DIY inclined, you could add a standard nano-USB on the left side of the calculator (which is on the right side in the picture). Beware: it requires drilling your precious unit!

On the other hand, no way to go into the keyboard: many permanente fixings, risking to break the calculator.