Check out AT&T's Valentine's Day Gift Guide for ideas & deals on the new Samsung Galaxy S23!
The new iPhone 14
Gyotan's profile

New Member

 • 

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.

Accepted Solution

Official Solution

Fl_retire

ACE - Professor

 • 

2.8K Messages

8 months 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)

Accepted Solution

Official Solution

ACE - Sage

 • 

104.3K Messages

8 months 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! 

New Member

 • 

2 Messages

8 months ago

Thanks to both answers!

Not finding what you're looking for?
New to AT&T Community?
New to the AT&T Community? Start by visiting the Community How-To.
New to the AT&T Community?
Visit the Community How-To.