As I think we have all learned Sprint does not pay any real attention to the complaints posted on the internet forums. Furthermore whenever you try calling Sprint's customer service the only thing they seem to be able to tell you is
1) We've never seen that problem before
2) Let's reset your device
3) Resetting your device didn't work? we'll replace it
I believe the only way to get any type of response is to contact Sprint's Executive Services, their E-mail address is email@example.com
and their direct number is 1-866-727-0665.
The rule is, if people don't call them directly and complain Sprint will not budge in fixing the problem(s) and the normal front line tech support people don't know anything beyond the simple flowchart presented to them when you call.
So if you are having problems with the phone YOU MUST CALL SPRINT AND COMPLAIN or nothing will be done! This includes those that have problems but don't seem to care. (eg ring lag - but receive very few calls that it doesn't both you)