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Gyotan's profile

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2 Messages

Friday, June 17th, 2022 7:47 PM

iPhone Se 2020 use in S. Korea

Can an ATT iPhone SE 2020 be used in S. Korea?  The ATT website specifically notes that for S. Korean and Japan, a phone must use 2100 MHz, but does not specify GSM or UMTS/HSPA.  According to the data the iPhone SE 2020 only lists 2100 Mhz for UMTS but not GSM.

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ACE - Professor

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3.1K Messages

2 years ago

The iPhone SE (2020) is a world phone network has the bands needed to function in South Korea. The AT&T phone has to be unlocked to accept aSIM from another carrier. Links has further info.  

https://www.gsmarena.com/apple_iphone_se_(2020)-10170.php


https://prepaid-data-sim-card.fandom.com/wiki/Korea_(South)

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ACE - Sage

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118.2K Messages

2 years ago

@Gyotan

Here's a bunch of useless information you never wanted to know and probably don't need to know, but here it is anyway 😂

Service providers like AT&T and T-Mobile are referred to as "GSM service providers", as is much of the rest of the world.   However GSM is a 2G technology, which all US carriers are shutting off. (At&t did in 2017)

3g is UTMS, HSPA, W-CDMA

Every iPhone currently supported has HSPA  850 / 900 / 1700(AWS) / 1900 / 2100

Safe travels! 

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2 Messages

2 years ago

Thanks to both answers!

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