1. gmartin85's Avatar
    I was forced to switch my carrier from att to T-Mobile. I have an factory unlocked att HTC one. When I put my new tmobile SIM in the voice works but the data doesn't even though the screen displays 4g at the top. I messed around with all the settings at #*#*info*#*# and it still doesnt work. In setting, mobile data says it is disconnected when not connected to wifi, when connected to wifi it says that it will use network date when WiFi unavailable.

    I have looked through this forum for answers but cannot find anything with this issue. Any help is greatly appreciated.
    06-15-2013 10:42 AM
  2. mtmjr90's Avatar
    Make sure your APN is set to fast.t-mobile.com. I've attached a screenshot. You can access APN settings here: Settings>Mobile data>Access point names. Make sure to select "Save" when you're done editing. I don't use MMS, so that info in the screenshots is probably not correct.



    Sent from my HTC One using Tapatalk 4 Beta
    06-15-2013 10:56 AM
  3. gmartin85's Avatar
    Thanks. Worked great
    06-15-2013 11:18 AM
  4. mtmjr90's Avatar
    No problem, glad I could help

    Sent from my HTC One using Tapatalk 4 Beta
    06-15-2013 11:29 AM
  5. Krishna Menon Bodapati's Avatar
    Thank you very much for help. It worked like charm.
    08-19-2013 10:52 AM
  6. v_hugo's Avatar
    Does this still work?
    I sim unlocked my att htc one and I changed the apn on the phone to the t-mobile one but i still have no voice, text, or data.
    08-28-2014 12:14 PM
  7. 1053's Avatar
    I unlock my own phn htc one mini and insert my nigeria simcard but whn i on d mobile data it will write disconnected and still appear 4G at d top bt no appearance dat d mobile data is on.
    bt can browse wifi bt mobile data is disconnected i don't know what to do pls an information will b greatly appreciated.
    10-08-2015 03:04 PM
  8. L421's Avatar
    How ?? please help me . i i Open Access Point Names .. their such no thing will appear its only the APNS above ...
    soo please help me to solve it ..
    01-08-2016 08:15 AM
  9. IsoPaska's Avatar
    I was forced to switch my carrier from att to T-Mobile. I have an factory unlocked att HTC one. When I put my new tmobile SIM in the voice works but the data doesn't even though the screen displays 4g at the top. I messed around with all the settings at #*#*info*#*# and it still doesnt work. In setting, mobile data says it is disconnected when not connected to wifi, when connected to wifi it says that it will use network date when WiFi unavailable.

    I have looked through this forum for answers but cannot find anything with this issue. Any help is greatly appreciated.
    We are travelling internationally and my husband had this problem on his HTC One M9.

    Settings>Mobile Data>Access Point Names
    Create a new apn by tapping/selecting the three vertical dots in the upper right corner
    Choose New apn
    Manually enter this data:
    Name: T-Mobile GPRS
    APN: fast.t-mobile.com
    MMSC: http://mms.msg.eng.t-mobile.com/mms/wapenc
    APN type: default,supl,mms
    Everything else can remain unselected/unchanged

    My HTC One M8 phone was working fine but my husband's M9 wasn't. I saw my APN was different than his, so I manually created this APN based on mine and his data started working perfectly.

    Best of luck!
    10-14-2016 07:53 AM

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