1. mishoneybeez's Avatar
    Ok I straight talk . I am using an AT&T samsung galaxy s3 .... on the byop program.... I using my sim card from my old zte merit phone ...cause I can't afford AT&T compatible one... I was told to download tweakker n it unlocked my internet perfectly but I can't send or recieve mms messages what did do wrong?
    05-21-2013 03:45 PM
  2. rick_evelyn's Avatar
    Ok u dont need to unlock the phone I as well am using the att s3 on straight talk do u have a micro sim from straight talk or did u cut ur own from the old one what u need to do is look on straight talks website and find the apn settings for an att compatible sim card and follow the settings works like a charm for me if have anymore questions dont hesitate to ask thanks I have been using it for several months with no problems and if u cant find the apn setting on the site then let me know I will post what mine r

    Sent from my SAMSUNG-SGH-I747 using Android Central Forums
    05-22-2013 04:35 PM
  3. rick_evelyn's Avatar
    Ok go to settings then more settings mobile networks access point names and then click ur bottom left menu botton then select new apn and change these settings
    Name straight talk
    Apn att.mvno
    Proxy proxy.mvno.tracfone.com
    Port 80
    Mmsc http://mmsc.cingular.com
    Mms proxy 66.209.11.33
    Mms port 80
    Only change these settings and when ur done click on ur bottom left menu button again and save apn then restart ur phone and u should be good to go let me know
    Sent from my SAMSUNG-SGH-I747 using Android Central Forums
    05-22-2013 05:04 PM

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