Support 3G on my Samsung Vibrant

Discussion in 'Android Devices' started by Veetus, Aug 30, 2010.

  1. Veetus

    Veetus Active Member
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    Aug 30, 2010
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    So I recently just got a Samsung Vibrant, which is unlocked and (I believe) rooted.

    My problem is, that only when I FIRST put my SIM card in, I had 3G service. Ever since then, it's been EDGE. How can I fix this?

    Is it even possible?

    And yes, of course I am on AT&T.
     

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  2. HustlinDaily

    HustlinDaily Well-Known Member
    163

    Apr 6, 2010
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    Student
    Sugar Land, TX
    Is it possible that you are in an area of weak 3G coverage?


    What happens when you try to force 3G only?

    Dial *#*#4636#*#* in the dialer and a Testing Menu should appear.

    On that menu, press Phone Information. Scroll down to a drop down menu and select "WCDMA Only" (GSM Only=2G only. Maybe somehow, that was set).
     
  3. HustlinDaily

    HustlinDaily Well-Known Member
    163

    Apr 6, 2010
    1,141
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    Student
    Sugar Land, TX
  4. ranova

    ranova Well-Known Member
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    Jul 16, 2010
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    I believe its only 1900mhz 3g only. Because most areas use 850mhz, you will only get Edge in those areas.
     
  5. HustlinDaily

    HustlinDaily Well-Known Member
    163

    Apr 6, 2010
    1,141
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    Student
    Sugar Land, TX
    Actually most areas utilize the 1900MHz 3G band. They are still in the process of building out their 850MHz.

    My phone only has the 1900MHz band and I get 3G in most areas.

    Only map I can find is from '08- Cellular Maps.com-AT&T 850 vs. 1900 MHz Coverage
     
  6. Djidea

    Djidea Well-Known Member
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    Jul 19, 2010
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    Orange County So. Cal
    Can you use the at&t media net $10 unlimited family data plan on the unlocked Vibrant without at&t switching you to the smartphone data plan?
     
  7. HustlinDaily

    HustlinDaily Well-Known Member
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    Apr 6, 2010
    1,141
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    Student
    Sugar Land, TX
    You can, I am (have been for several months). But if AT&T finds out they will change it and send you a text or something. Hoping they don't find out lol.
     
  8. Djidea

    Djidea Well-Known Member
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    Jul 19, 2010
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    Orange County So. Cal
    Anyone in the Los Angeles / orange county area getting 3G with a vibrant on at&t?
     
  9. Djidea

    Djidea Well-Known Member
    16

    Jul 19, 2010
    97
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    Orange County So. Cal
    So picked up an unlocked vibrant for my wife and it seems to be on 3G in most areas. Sometimes goes to edge but switched back to 3G. One thing is interesting, it has a faster upload than my captivate.
     

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