Straight Talk T-Mobile SIM Swap Trick for iPhone

NOTE: I no longer condone using Straight Talk. Their customer service is horrible. I can’t stress this enough: They just don’t give a shit … about anything. I’ve since switched to T-Mobile and their service is much better for about the same price. Still want to use Straight Talk? Use these instructions at your own risk…

This is how I got MMS working on an unlocked (non-jailbroken) iPhone 4s running on Straight Talk.

1.) If you’ve already followed the instructions for changing the APN settings using unlockit.co.nz, that’s fine. But that will only give you cellular access, not MMS access. You do not need to delete the Unlockit profile to continue.

2.) Order a T-Mobile micro SIM from tmobile.com. It’s only 99 cents. Don’t ask for one at a T-Mobile store. They’ll want $20 for it.

3.) Take out the Straight Talk SIM card.

4.) Insert the T-Mobile SIM and let it connect to the network. You’ll get some voicemail notifications; cancel them.

5.) Go to Settings > General > Cellular. A new Cellular Data Network option now appears. Go into it.

6.) Go back to your home screen and open another application, like Notes. You must do this or else the next step won’t work! If you swap the SIM while on the settings screen, it will sneakily try to close itself.

7.) While Notes is open, swap the T-Mobile SIM for your original Straight Talk SIM.

8.) AS QUICKLY AS YOU CAN, double-click the home key, choose Settings, and click back into the Cellular Data Network options screen. If you don’t move quickly enough, swap the SIMs and try again.

9.) Wait for the Straight Talk SIM to connect to the network (you’ll see it cycle from “AT&T” to “HOME” in the notification bar).

10.) Enter the new APN/MMS settings below.

11.) Close the Settings. No restart was necessary. Try sending/receiving an MMS. Voila!

Settings:

data apn: att.mvno
user:
pass:

mms apn: att.mvno
user:
pass:
mmsc: http://mmsc.cingular.com
MMS proxy: 66.209.11.33:80
Max Size of Message: 1048576
UAProf: http://www.apple.com/mms/uaprof.rdf

1.) Get a T-mobile micro sim card
2.) Start Iphone and let boot up. Then take out ST sim card
3.) Place the T-mobile sim card in and let it connect to network
4.) Under general and cellular there is cellular data option
5.) Under cellular data you see fields for Data APN an MMS
6.) At this point double hit home button at the bottom to open camera or some other app
7.) Then take out T-mobile sim and place ST sim card into phone
8.) Right away, double hit home key and pick settings button at the bottom
9.) The Data APN and MMS settings window should pop up. Let it connect to Straight Talk Network. Enter in the info below after that:

data apn: att.mvno
user:
pass:

mms apn: att.mvno
user:
pass:
mmsc: http://mmsc.cingular.com
MMS proxy: 66.209.11.33:80
Max Size of Message: 1048576
UAProf: http://www.apple.com/mms/uaprof.rdf

10.) After click back upto and it should store the settings. You can click cellular data to check if the settings are in.
11.) I had to repeat the process twice before it took.

2 thoughts on “Straight Talk T-Mobile SIM Swap Trick for iPhone”

  1. The best instructions out there, agree that StraightTalk support is non-exist aunt, they are sitting in Phillipines actually, even the English is very bad

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