I have a navigationController-based app. I want to change the title of the back button for the root view controller. I have tried the following code in the rootViewControlle
Your problem is probably very similar to the one described here: http://blog.tmro.net/2009/05/uitabbarbuttonitem-did-not-change-its.html
Try to debug to see if there are any _barButtonItemFlags set for your button...