Unable to access internet after reactivationg iPhone 4

Question

I recently had to have another device on my Sprint account reactivated on my phone number in order to have some repairs done so that I could give the phone to another user on my account.  When I had my iPhone 4 reactivated on my line, I was not able to access the internet.  I have completed all of the troubleshooting steps provided by the carrier, with the exception of a master reset and I still receive the error message that says: "You are not subscribed to a cellular data service."  The store agent said the only fix was to do a master reset.  My only concern is that I will lose all of the downloaded music content on the device as it was not purchased from iTunes.  Any suggestions????

Answer 1

Double-click anywhere in the line of text below on this page to select it, then copy it to the Clipboard by pressing the key combination command-C:
www.google.com
Launch the Network Utility application.
Step 1
Select the Lookup tab and paste into the address field (command-V). Press return. Post the output that appears below – the text, please, not a screenshot.
Step 2
Select the Ping tab and do the same. Please enter the same input as you did in Step 1. Don't use the output of Step 1 as input to Step 2.
Important Note
Some web browsers and mail clients will automatically convert a domain name such as "www.example.com" to a clickable URL, such as http://www.example.com. That will interfere with the test. If necessary, edit the input in the Network Utility window to remove any added characters.