The attached is a compilation of TSB's and notes ABB put together for their service techs and the occasionally sent to others needing help.
It has very good instructions on loading S4 2.0, 2.1& 3.0 and S4C 3.0 software. It also has I-Start, S4 Backup & Rapid Converter notes.
This was requested by davsearle, but I made a separate thread to make sure it had an easy-to-find, descriptive title.
Hope it helps.