1. orangesmasher221's Avatar
    I have a samsung galaxy s3 GT I9305 and I unlocked it. But to unlock it, I had to flash the modem. After unlocking it using the secret menu, I plugged in another sim card but it only gets 2g. Why is this and is there any way I can fix it? Thanks
    09-21-2014 02:27 PM
  2. orangesmasher221's Avatar
    If there needs to be any more info, I am running stock 4.1.1, my imei still shows up, I am still in service, and the network type is EDGE:2.
    09-21-2014 03:05 PM
  3. Rukbat's Avatar
    Check the frequencies that your particular model S3 can use (850/900/2100 for 3G and 800/1800/2600 for 4G), and the frequencies the new carrier uses for 3G and 4G. I'm guessing that your phone can't use the frequencies that the new carrier uses. That's usually a hardware thing - the only "fix" is replacing the motherboard, essentially turning your phone into a different model S3.
    09-21-2014 03:31 PM

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