dealer TCU replacement
 

A shot in the dark, but is there any possiblity of convincing a dealer to replace the TCU if it's too outdated to work with your phone? If not under warranty/maintenance, how much does that cost?

It retails for over $1000...I doubt they would replace it out of kindness, if they don't have to. I had to have mine replaced ~3 weeks ago, because it malfunctioned.