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  1. Thread Author  Thread Author    #1  

    Default Can I add wifi calling to a Galaxy S3 GT-I9300?

    I have the GT-I9300, but the area around my house has terrible reception. My roomate has the T-Mobile version of the SIII, I believe it is the T999, and it has wifi calling, which lets him use it even in the basement. Is there a way for me to flash T-Mobile firmware, or somehow add wifi calling onto my GT-I9300? I do not want to use a voip app. My phone works fine outside on T-mobile service, it's just inside the dead zone of my house where it becomes a problem.
  2. #2  

    Default Re: Can I add wifi calling to a Galaxy S3 GT-I9300?

    Quote Originally Posted by Pancake_Thief View Post
    I have the GT-I9300, but the area around my house has terrible reception. My roomate has the T-Mobile version of the SIII, I believe it is the T999, and it has wifi calling, which lets him use it even in the basement. Is there a way for me to flash T-Mobile firmware, or somehow add wifi calling onto my GT-I9300? I do not want to use a voip app. My phone works fine outside on T-mobile service, it's just inside the dead zone of my house where it becomes a problem.
    to do that, you need to unlock your phone first, then flash the firmware+ pit file using odin
    Dont' Forget to press Thank you button and like button when you get an answer
  3. Thread Author  Thread Author    #3  

    Default Re: Can I add wifi calling to a Galaxy S3 GT-I9300?

    Where would I get the firmware? Can you link me to it?
  4. #4  

    Default Re: Can I add wifi calling to a Galaxy S3 GT-I9300?

    Quote Originally Posted by Pancake_Thief View Post
    Where would I get the firmware? Can you link me to it?
    you can download the firmware from here
    Firmwares | SamMobile
    Dont' Forget to press Thank you button and like button when you get an answer
    Thanked by:
  5. #5  

    Default Re: Can I add wifi calling to a Galaxy S3 GT-I9300?

    GT-I9300 and the T999 phones are different processors and frame work. The T999 software may brick the phone.
    SGH-T999
    T-Mobile USA
    Rooted Stock 4.3
    (No KNOX)

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