1. qzmpal's Avatar
    Hi Experts,
    This is a very very much talked about topic. But mine is entirely different case.
    I have Verizon SGS3. But it's unlocked and can work on the AT&T 4G HSPA Frequency.
    Bought a Light Blue BYOP SIM. Cut it into Micro SIM Size and put in SGS3.
    Now, I browse different forums and try to enter APN SETTINGS.
    But cannot enter new APN Settings in menu, more settings, Mobile Networks, APN Settings. I don't know why.
    Next I bought APN Manager pro. Still no luck.
    Then downloaded HiAPN.
    Then I'm able to enter only first field.
    Now I'm getting EDGE speeds or 2G speeds.

    How can I get 4G speeds???
    04-19-2013 11:54 PM
  2. gonzo0203's Avatar
    You might look at this thread.
    Might help you.
    04-23-2013 09:29 AM
  3. howiesf's Avatar
    Do you have an ATT SIM ? If so, here is what works for me, granted my S3 is an unlocked i747.

    APN -wap.tracfone
    Port - 80
    MMSC- https://mmsc.cingular.com
    MMS Proxy
    MMS Port 80
    MCC 310
    MNC 410

    That's it, and it has worked since Dec. However, lately I have been experiencing ye old WTF? inconsistent Data and some issues with calls . I called them yesterday about my issues and at first they said there have been changes to the APN but then they said "so,mething was not set correctly on your account. Today was so-so. I am seriously ready to just switch to RedPocket or AirVoice. Advantage of Prepay
    04-30-2013 02:52 AM

Similar Threads

  1. Samsung galaxy s3 and straight talk
    By morton8683 in forum Samsung Galaxy S3
    Replies: 14
    Last Post: 11-27-2014, 05:17 AM
  2. Galaxy Proclaim on Straight Talk
    By terminalinfinity in forum Other US Carriers
    Replies: 5
    Last Post: 02-24-2014, 08:30 PM
  3. Galaxy S3 on Straight Talk in my area?
    By Jesse Stillwell1 in forum Samsung Galaxy S3
    Replies: 0
    Last Post: 01-18-2013, 09:00 PM
  4. Galaxy S3 on Straight Talk in my area?
    By Jesse Stillwell1 in forum General Help and How To
    Replies: 2
    Last Post: 01-18-2013, 01:39 PM
  5. $99 Samsung Galaxy S3 on Amazon
    By goin_nil in forum Samsung Galaxy S3
    Replies: 7
    Last Post: 09-11-2012, 07:38 PM