MMS, Tethering working on iPhone 3G (IPCC Included)

Since the IPCC are effective ZIP files... its very easy to recreate them. Right clicking on the 'Payload' folder (2 levels above the .plist files we were editing just now) and 'Adding to a zip' would do. All you gotta do is rename the resulting .zip file to .ipcc

Once we have the .ipcc, we need to prep iTunes a bit for it to allows us to update the settings on our iPhone. Since Apple has blocked the easy straight forward way of doing it, we need to run a little command in command prompt (try Start > Run > cmd) will do the trick for now:

After doing this, start iTunes your normal way (and hopefully you had the sense to quite iTunes before running the above command) and let it detect your iPhone and make all the usual noises. Once everything settles down... 'Shift' + Click on the 'Check for Updates' button and a File-Open popup should appear:

If you don't see that option you have done something wrong... don't be afraid... just comment here and surely you will get the required push in the right direction.

Select the .ipcc and hit 'Open.'

You should immediately see the Settings > General > Network > Cellular Data Network option open up. Go into it and enter your appropriate MMS settings (MMSC and MMS Proxy IP : Port)

After that, repeat the above updating procedure again... selecting the same .ipcc file in the same exact way. Only takes a couple of seconds really.

That's that to it.

Mac users, to enable updaing carrier settings on your iTunes 8.2, the equivalent command is:

defaults write com.apple.iTunes carrier-testing -bool TRUE