I get asked a lot about MMS on the iPhone an dhow to make it work with Tmobile. The solution used to be a bit convoluted but the most recent work around works smoothly and results are great.

I used to direct people to help.benM.at (enter this address into Safari on your iPhone) to enable MMS and tethering on their iPhone. The big advantage to this site is that it can help you get the correct carrier profiles for just about any carrier worldwide. With the profile installed you were then directed to add your specific carrier details such as:

APN wap.voicestream.com or internet2.voicestream.com
MMSC 216.155.174.84/servlets/mms
MMS Proxy 216.155.165.50:8080

Restart your phone and voila you have native MMS and tethering enabled.

The problem here is that Tmobile doesn’t officially support the iPhone and the servers that send out MMS to your phone wont recognize the iPhone. So they do what is in your best interest. The servers shrink you message down to the smallest possible size (a thumbnail in this case). Yeah, you get your message but it isn’t very clear when you enlarge it to view. The fix is even simpler than previously used methods and the end result are clear MMS images on your iPhone.

You’ll need to enter into Cydia>Sections>Tweaks and scroll down to the Tmobile section.

Here you will need to locate (currently 2nd in the ‘T’ section) T-Mobile US-Postpaid. This tweak adds the Tmobile carrier profile to your iPhone, the MMSC and Proxy and adjusts a line in a .plist on your iPhone to make it look like a blackberry when receiving MMS. After you install and then reboot the iPhone, you will still need to enter the correct APNs from above but that’s it. You can now send and receive MMS like every other phone out there.

By the way, if you are one of the unlucky that had MMS only to find it failing for the past couple months in getting this message form Tmobile

“the media content was not included due to a picture resolution or message size restriction”

then this method will also work for you also.