Windows Phone Carrier Update for Net10 and Straight Talk

Apple or AT&T occasionally sends "Carrier updates" over the air to iPhones using AT&T based SIMs. These updates reset the iPhone's data settings to the default AT&T ones which do not work with NET10 or Straight Talk. If your data stops working after a carrier update you need redo the settings.

How to setup Straight Talk data and picture messaging on Windows Phone
Follow the instructions that came with the SIM to activate it online at straighttalksim.com orwww.net10sim.com or by calling 1-855-222-2355. Insert the SIM in the phone and turn it on. Make a test call to be sure your SIM really is active. Sometimes it takes a little while for the activation to process. If you still can't make voice calls after an hour, call Straight Talk's dedicated BYOP SIM support number at 855-222-2355. There's no point in trying to set up data until the SIM is active. Once you can make calls:

Data Only Setup:
To set up data on any Windows Phone:
1. Tap the arrow icon in the top right corner of the home screen to go to the main menu.
2. Tap Settings > Cellular and set Data connection to On.
3. Tap Add apn (WP7) or Add internet apn (WP8).
4. On the APN Settings screen enter tfdata (or att.mvno for older customers) in the APN field   if you are using an AT&T SIM. 
If you are using a T-Mobile SIM, enter wap.tracfone.  Leave the other fields blank. Tap the disk icon to save the settings
5. Be sure WiFi is off. Open the browser and test your connection by trying to load a website.

MMS and Data Setup:

Windows Phone 7
Windows Phone 7 doesn't allow users to change MMS settings directly (Windows Phone 8 does). However Nokia and Samsung have both created apps that give full access to MMS and Data settings. The Nokia app works with all Nokia Windows Phone 7.n models but the Samsung app only works with the Samsung Focus Flash, Samsung Focus 2 and Samsung Focus S. It doesn't work with the original Samsung Focus.

There's no way to configure Windows 7 phones from HTC, Dell or LG to work with Straight Talk MMS.

The process of setting up MMS varies from one Windows Phone 7 model to another. There are too many variations to describe here. Fortunately there's a great site called StraightTalkWindows.com that is dedicated to helping users setup Straight Talk data and MMS on Windows phones. The MMS setup instructions include screenshots and are very detailed and easy to follow.

Windows Phone 8
With Windows Phone 8 MMS settings are fully accessible. To configure MMS on all Windows Phone 8 devices:

1. Tap the arrow icon in the top right corner of the home screen to go to the main menu.
2. Tap Settings > Cellular.
3. Tap Add mms apn.
4. On the APN Settings screen enter the following values:

For an AT&T SIM:
APN: tfdata (or att.mvno for older customers)
WAP Gateway: 66.209.11.33
WAP Gateway Port: 80
MMSC : http://mms-tf.net (or http://mmsc.cingular.com for older accounts) 

For a T-Mobile SIM:
APN:wap.tracfone
WAP Gateway Port :leave blank
MMSC: http://mms.tracfone.com
MMSC Port: 80

5. Leave the other fields blank. Tap the disk icon to save the settings

Troubleshooting - All Phones
If you've followed the instructions and your data or picture messaging do not work:
1) Double check your typing. Everything has to match exactly to work. A missing or extra space, period or other character will keep data and/or picture messaging from working.
2) Turn your phone off and back on and try to connect.
3) Even though the SIM is active for voice calls it can take up to an hour before the account is fully configured and data and MMS work. If your are still having problems after an hour, call Straight talk's BYOP department at 855-222-2355 and ask them to check that data is enabled on your account.
4) If you are using an AT&T SIM and the "old" settings and data sudenly stops working after your plan monthe renews, NET10/Straight Talk probably switched you to the "new" settings, refer to the instructions for your phone type above to change to the new settings.
5) If problems persist, submit a support ticket on Straight Talk or NET10's Facebook page or contact Straight Talk/NET10 "Executive Resolutions Dept." number at 1-305-715-6500, Monday – Friday from 8:00 AM to 5:00 PM Eastern time. You can also email Executive Resolutions at st.corpresolutionteam@straighttalk.com.