Welcome to the Official BlackBerry Support Community Forums. This is your resource to discuss support topics with your peers, and learn from each other. New to the forum? Please visit the ‘Getting Started’ link below.
The best you'll get is to identify the individual chips which may be involved, using the iFixit teardown for example, and then look up datasheets for some background. This is not recommended, however, because among other things you have no guarantee in most cases that the parts will not change. I believe we've already heard that the magnetometer, for example, is different now than it was originally.