If you had dreams of upgrading your shiny new Surface Pro 3, youd better shelve them. The crew at iFixit has torn down Microsofts latest slate, and it proves just as daunting to repair as both of its predecessors. About the only replaceable part is the solid-state drive, and theres a good chance that youll destroy your tablet trying to reach that component — even iFixit cracked the glass while removing the display.