Here are the T-Mobile Internet and picture messaging (MMS) settings for use with an Apple iPhone from another carrier. We recommend starting with Setup guide: Apple iPhone for the fastest and easiest setup.
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iOS 9 or newer
These settings are automatically set to the correct values when T-Mobile SIM cards are inserted and cannot be changed. You can reset your network settings to make sure they are correct:
- From the Home screen, tap Settings > General > Reset.
- Tap Reset Network Settings.
- Type in the device password if prompted.
- Confirm selection.
iOS 7 & 8
- Tap Settings > Cellular > Cellular Data Network. If this setting does not appear on the device, it is not unlocked. You must speak with your previous carrier.
- Enter the following information under the Cellular Data section:
- APN: fast.t-mobile.com
- Username: <Not set>
- Password: <Not set>
- Enter the following under the LTE Setup (Optional) section:
- APN: <Not set>
- Username: <Not set>
- Password: <Not set>
- Enter the following under the MMS section:
- APN: fast.t-mobile.com (for iOS 7) or tmus (for iOS 8)
- Username: <Not set>
- Password: <Not set>
- MMSC: http://mms.msg.eng.t-mobile.com/mms/wapenc
- MMS Proxy: <Not set>
- MMS Max Message Size: 1048576
- MMS UA Prof URL: http://www.apple.com/mms/uaprof.rdf
- Enter the following under the Personal Hotspot section:
- APN: pcweb.tmobile.com
- Username: <Not set>
- Password: <Not set>
- Press the Home button to save the APN and exit to the main screen.
- Turn the device off and back on.
iOS 6
- Tap Settings > General > Cellular.
- Verify the following settings:
- DataRoaming: On
- Wi-Fi: Off
- 3GEnable: On
- Tap Cellular Data Network. If this setting does not appear on the device, it is not unlocked. You must speak with your previous carrier.
- Configure as follows:
- APN: fast.t-mobile.com
- Username: <Not set>
- Password: <Not set>
- Enter the following under the MMS section:
- APN: fast.t-mobile.com
- Username: <Not set>
- Password: <Not set>
- MMSC: http://mms.msg.eng.t-mobile.com/mms/wapenc
- MMS Proxy: <Not set>
- MMS Max Message Size: 1048576
- MMS UA Prof URL: http://www.apple.com/mms/uaprof.rdf
- Enter the following under the Internet Tethering section:
- APN: pcweb.tmobile.com
- Username: <Not set>
- Password: <Not set>
- Press the Home button to save the APN and exit to the main screen.
- Turn the device off and back on.
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