T-Mobile US APN Settings: (By Elvis_Freshly)
Click on Menu
Click on Settings
Click on Wireless & networks
Click on Mobile networks
Click on Access Point Network
You will see a tab with Some provider settings,if rooted device with custom ROM.
Ignore it for now.
Click on Menu
Select New APN from popup menu.
You will see a window come up with a bunch of tabs.
Clcik on name and Name the connection as T-Mobile USA
Click on APN and enter epc.tmobile.com
Click on Proxy and enter 188.8.131.52
Click on Port and enter 8080
Username will show as (leave it alone do not touch)
Password will show as (leave it alone do not touch)
Server will show as (leave it alone do not touch)
Click on MMSC and type in http://mms.msg.eng.t-mobile.com/mms/wapenc
Click on MMS proxy and type 184.108.40.206
Click on MMS port and type 8080
MMS Protocol should be WAP 2.0
if not then click on tab and select WAP 2.0
MCC should be set to 310
if not click on tab and set it to 310
MNC should be set to 260
if not clcik on it and set to 260
Click on Authentication type and select None
Click on APN type and enter default,supl,mms
And then Click on menu and save it.
Now click on back button and select the Telkeia
when It opens up click on menu and select Delete APN
Now you go back and you will see a T-Mobile US
Apn that we just created.
Select that and a red circle should appear next to the Tab.
Now press back twice to go to Wireless & Networks screen
Uncheck Mobile network tab and wait for a few secs;
Check the Mobile networks tab again;
Now reset your phone and enjoy T-Mobile data, MMS and SMS