This is an app (.apk) that will enable dialer codes and open the phone utility in one click.
Does it require root?
How do I use it?
Install the app however you want to, run it and then click then giant button that says "CLICK TO OPEN PHONE UTILITY".
It will be labeled as 'SGS4 Vzw Diag'
What else can you tell me?
It was designed specifically for the VZW S4 and was intended to help us enable diag mode, in order to do that the first thing it does is run a command to permanently enable dialer codes.
It will not do anything if you are running an AOSP Rom.
It is untested on other sprint and GSM S4's
I made this app back in may for a private project I was working on but then it was no longer needed for my project and I just kinda forgot about it.
So, this will come with no support and probably no updates (not even sure if I have the source anymore actually).
It is free, If it works for you, awesome, if not, oh well.
DOWNLOAD - CLICK HERE
-Josh, GeeKmod Development