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General att s4 on tmobile network, internet is real slow

Discussion in 'Android Devices' started by xolotj, Sep 21, 2013.

  1. xolotj

    xolotj Member
    Thread Starter
    5

    Sep 21, 2013
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    5
    I have a att s4 that im using with a tmobile sim card everything works good except for the internet that it constantly gets real slow and sometimes wont connect at all,someone knows if theres a fix for this and how to do it
     

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  2. Kelmar

    Kelmar Done by choice
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    Nov 28, 2009
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    Not sure... but does installing a sim automatically update the APN?
     
  3. xolotj

    xolotj Member
    Thread Starter
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    Sep 21, 2013
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    How can I do that
     
  4. Mr. Lucky

    Mr. Lucky Well-Known Member
    263

    Oct 27, 2011
    2,087
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    business owner
    SoCal
    The preferred network type is probably set wrong. For AT&T, it defaults to "LTE/GSM auto (PRL)." Find out what the TMo setting should be, then set it as follows.
    1. From the phone dialer, dial *#*#4636#*#*
    2. Select Device information
    3. Scroll to the drop-down labeled "Set preferred network type"
    4. Tap the correct setting for TMo (note that this is a scrolling window)
    5. Press the back button
    6. DONE (it is not necessary to reboot)
     

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