* Setting configures the correct data APN automatically
– Turn off your phone
– Switch SIM into your phone
– Turn on & Check KT 4G LTE Signal on your phone
– Enjoy unlimited data on your phone
* Troubleshooting Tips, SIM
– Try to do as follows if KT 4G LTE Signal is not connected
– From the Home screen, Tap Menu, then Settings
– Turn off Airplane and Wi-Fi
– Power OFF 2 ~3 times & Check KT 4G LTE Signal
– Do KT APN Setting if KT 4G LTE not connected
I. Add KT LTE internet APN Setting
1. Go to Settings
2. Mobile networks,
3. then select Access Point Names
4. Tap the Menu and Select New APN
5. Enter APN settings
– Name: KT
– APN : lte.ktfwing.com
– APN type:
– Proxy :
– Port
– Username :
– Password :
– Server :
– MMSC : http : //mmsc.ktfwing.com:9082
– MMSC proxy :
– MMS Port :
– MCC : 450
– MNC : 08
– Authentication type :
– APN type :
6. Tap More
7. Tap Save
8. Turn off & on phone
II.Reset APN to Default
1. Go to Settings
2. Mobile networks,
3. then select Access Point Names
4. Tap More
5. Tap Reset to default
6. Turn off & on phone