“May I use the SIM card (Total Wireless) in my Galaxy 4 in Galaxy 7 edge?”

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• I don't think so but I'm not 100% sure. I was trying to test if wi-fi calling is enabled with different carriers sim-cards (apparently it's usually not with fully unlocked phones). I was told by service rep that to test i would need to have sim-card from S5 or newer because the sim-cards are physically a different size in the newer phones.

  Answered by Anonymous 8 years ago

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