This Korea eSIM activation guide covers the practical setup steps after you buy a Kimchi Mobile prepaid data eSIM. Use it with the QR code email, your phone’s cellular settings, and a stable Wi-Fi connection.
Need a plan before setup? Start with Kimchi Mobile’s prepaid Data eSIM first. The current 10GB option offers 15-day or 30-day choices, sends QR details by email after purchase, and does not require physical shipping.
Before you start
- Use an unlocked phone that supports eSIM.
- Connect to stable Wi-Fi before scanning the QR code.
- Keep the QR code email until setup and testing are complete.
- Know which SIM should handle mobile data after you land in Korea.
- Do not delete an installed eSIM profile unless support tells you to.
Apple lists iPhone XS, iPhone XS Max, iPhone XR, or later as eSIM-capable. Android settings vary by manufacturer, so use your device’s SIM or mobile network settings.
Step-by-step Korea eSIM activation
- Buy your Korea eSIM plan from Kimchi Mobile.
- Open the QR code email on a second screen or another device.
- On iPhone, open Settings, Cellular, and Add eSIM. On Android, open SIM or mobile network settings.
- Scan the QR code. If your phone offers manual entry, use the details from the provider email.
- Name the new line something clear, such as Korea eSIM or Kimchi Mobile.
- After arrival, set mobile data to the Korea eSIM line.
- Open a browser or map app to test mobile data.
Staying in Korea longer? Keep prepaid as the arrival step, then review the KT long-stay option only after you can meet the carrier requirements. KT says subscribers need at least 90 days left on the visa, and monthly charges can be paid by Korean bank account or Korean credit card.
For arriving teachers, Korvia’s partner campaign details are published at https://www.korvia.com/esim. Treat that page as Korvia campaign information, not KT policy authority.
Which plan should I activate?
| Plan | Use case | Link |
|---|---|---|
| 5GB | Light maps, messaging, and web browsing | View 5GB eSIM |
| 10GB | Standard tourist use with daily navigation and social apps | View 10GB eSIM |
| 20GB | Heavy data, hotspot, video calls, and longer stays | View 20GB eSIM |
Troubleshooting checklist
- Turn airplane mode on and off.
- Restart the phone.
- Confirm that the Korea eSIM line is on.
- Confirm mobile data is assigned to the Korea eSIM line.
- Check carrier settings or APN fields if the device asks for them.
- Contact Kimchi Mobile support with your order number, device model, and screenshot of the error.
Apple’s eSIM troubleshooting guide also recommends checking whether the carrier appears in the status bar, turning the line off and on, restarting the device, and checking carrier settings.
FAQ
Can I install a Korea eSIM before my flight?
Yes, you can prepare the eSIM profile before travel if your provider has sent the QR code and your device supports eSIM. Keep the line off until you are ready to use it if the provider instructions say to do so.
Do I need Wi-Fi to install an eSIM?
A stable Wi-Fi connection is usually the safest way to scan and install an eSIM QR code, especially before your Korea mobile data line is active.
What should I do if the QR code fails?
Do not delete the email. Check Wi-Fi, confirm that the device is unlocked and eSIM-capable, restart the phone, and contact support with your order details and device model.
Can I keep my home SIM active?
Most recent dual-SIM phones can keep a home SIM active while assigning mobile data to the Korea eSIM. Check your phone settings before travel.
Why is my eSIM installed but not connecting?
The line may be off, mobile data may be assigned to another SIM, APN settings may need review, or the phone may not be unlocked for another carrier profile.