If I activate my iPhone first with T-Mobile, then will I be able to activate this with Boost later?

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If I activate my iPhone first with T-Mobile, then will I be able to activate this with Boost later?

I received a new iPhone XS Max from Korea. Only carrier that's compatible is T-Mobile. My current plan is under BoostMobile. If I activate it first with T-Mobile, then will I be able to activate this with Boost later?

South Korea Model (iPhone XS) This model doesn’t support CDMA networks

iPhone XS Max Model A2101
GSM/EDGE (850, 900, 1800, 1900 MHz)
UMTS/HSPA+/DC-HSDPA (850, 900, 1700/2100, 1900, 2100 MHz)
FDD‑LTE (Bands 1, 2, 3, 4, 5, 7, 8, 12, 13, 14, 17, 18, 19, 20, 25, 26, 28, 29, 30, 32, 66)
TD‑LTE (Bands 34, 38, 39, 40, 41, 46)

[Re-Titled by Moderator]

iPhone XS

Posted on Aug 14, 2019 2:56 PM

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Answer 1

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ChrisJ4203

Level 10

230,347 points

Aug 15, 2019 8:22 PM in response to injae22

You are better off returning the device to wherever you got it and purchasing a phone in the US if that is where you intend to use it. The Korean phone will not have warranty in the US, and as you have already found, you will have issues with carrier compatibility.

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Answer 2

ChrisJ4203

Level 10

230,347 points

Aug 14, 2019 3:05 PM in response to injae22

Where are you at that you cannot use a South Korean phone? What does BoostMobile say when you ask them if that model device works on their network? Only they could answer if it will work. They are the best ones to ask.

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Answer 3

injae22 Author

Level 1

8 points

Aug 15, 2019 6:53 AM in response to ChrisJ4203

Oh sorry. I am in Illinois. I did the compatibility check with all carriers including Boost and the only match was T-Mobile.

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If I activate my iPhone first with T-Mobile, then will I be able to activate this with Boost later?

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