You know I've experienced my best customer service opportunities via email with Sprint and other companies.  I believe this gives them time to research your question better and provide the answers you need.  Having said that, I know some have had nightmares.  Considering all the phones out there we just read and hear about those bad moments.  I just wanted to say Sprint rocks for me.  And I have a Verizon phone as well.

I went to the Samsung website and their support for products produced for Sprint is sweet!  Hear is Samsungs site URL.  The Sprint Instinct will be Samsung Model # SPH-M800
http://www.samsung.com/us/support/download/supportDownMain.do