If you recently unlocked your iPhone 4 and tried to run it on a T-Mobile US SIM, you must have noticed that MMS doesn’t work anymore. Well good news is that there is now a fix available in Cydia which will fix this problem once and for all.

I just found out about this fix from Redmond Pie’s Facebook fanpage and thought I should share it with you all. If you cant wait for JailbreakMe update, here is a quick possible fix for FaceTime and MMS issue on iPhone 4 after jailbreak using JailbreakMe 2.0 (Star). Simply follow the step by step guide below to fix the issue.

We already showed you earlier on how to enable MMS and video recording on the jailbroken iPhone 3G/2G. But now with “2G/3G Video MMS Enable” app for jailbroken iPhones, you can enable video MMS functionality which is missing by default on the said models of iPhone.

Here is a simple guide to enable MMS functionality natively in the Messages app for the first-gen iPhone (aka iPhone EDGE or 2G) running iPhone firmware 3.1.2. Yes, you can now send and receive MMS messages without having to install a third party app like SwirlyMMS.

The guy behind StealthBravo has managed to modify the latest AT&T Carrier Update file v6.0 so that it enables MMS and Tethering functionality on iPhone firmware 3.0 or 3.0.1. This will only work for AT&T customers with iPhone 3GS/3G running firmware 3.0.1/3.0.

MMS functionality for AT&T customers of iPhone 3G and iPhone 3GS has been officially launched as of September 25th. The following step-by-step guide will help you enable MMS functionality on iPhone 3G and iPhone 3GS running jailbroken firmware 3.0 or 3.0.1 on AT&T network.

The wait is finally over! MMS feature has finally landed officially for AT&T iPhone users – a feature which almost every other phone has had it for years. It comes in the form of a small (a few kilobytes) carrier update (.ipcc) file for iPhone 3G and iPhone 3GS users which makes the update painless as you don’t have to download a whole new firmware update just to gain this functionality.

MMS functionality for AT&T customers of iPhone 3G and iPhone 3GS is set to launch officially on September 25th. Aaron Krillr has posted a nice little trick to enable this functionality right now before the official launch on 25th. The following step-by-step guide will help you enable MMS functionality on iPhone 3G and iPhone 3GS running firmware 3.1 on AT&T network.