Power off the mobile phone and insert the SIM card.
Power on the mobile phone, turn off the WiFi and airplane mode,and turn on the Data Network setting.
After turning the power on and off two times or more, check whether "KT" shows up as your mobile carrier on the screen.
If not displayed as a service area
Please restart the phone until you see signal bars.(If you still have no service after turning on and off over three times, the phone is likely locked)
If it says "No SIM Card" near the signal bars
Please check whether the SIM card is placed correctly. If it still fails to recognize the card, it is highly likely that the device is incompatible.
If your mobile carrier shows up as "KT" but cannot connect to our data service, please check the APN setting.
① Set up② See more networks③ Mobile network④ Access point name
How to Set Up APN
If recognized automatically
Select the APN.
APN(LTE)lte.ktfwing.com
If not recognized automatically
Under APN, click the menu button, add a new APN, and enter the following.
APN(LTE)lte.ktfwing.comMCC450
MMSChttp://mmsc.ktfwing.com:9082MNC08
Power off the mobile phone and insert the SIM card.
Power on the mobile phone, turn off WiFi and Airplane Mode, and turn on Cellular Data.(For iPhone 6 and later, tap Enable LTE > Data Only)
Check whether "KT" shows up as your mobile carrier on the screen.
If not displayed as a service area
Please restart the phone until you see signal bars.(iPhone 4S or earlier models may take over 15 minutes for the signal bars to appear)
If it says "No SIM Card" near the signal bars
Please check whether the SIM card is placed correctly.If it still fails to recognize the card, it is highly likely that the device is incompatible.
If your mobile carrier shows up as "KT" but cannot connect to our data service, please delete the profile and restart the device.
① Set up② General③ Delete Profile④ Restart device
※ Please be cautious because once you delete the profile, it cannot be restored.
Cautions
The SIM should be used within 30 days after purchase, otherwise it will be expired.(no refund)
KT SIM does not support the personal authentication.
KT SIM is only available in Korea.
Requirements: ID card(passport or certificate of alien registration)
Calls will be restricted when used for illegal spam calls.
The amount spend on voice top-up and extension of the expiration date is non-refundable.
To use this service, the country lock on your device must be turned off.
Please contact your current telecommunications company to make sure that the country lock is off.
This service may not be able to be used with all device models and frequency bands.
After installing the SIM, the device may need to be turned on/off up to 5 times to recognize the SIM, depending on the device model.
Video calls may be unusable according to your mobile phone model.
The purchase quantity per person is limited.(1 voice SIM, up to 4 data SIMs )
For multiple rental inquiries, Please contact question@kt.com
For rental inquiries, contact KT Roaming Customer Center.
+82-2-2190-0901(free everywhere at KT mobile phone, press 6 for foreign customer)
for foreign customer : Mon~Fri, 9AM~6PM local time (Except on holidays)
