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Please activate your eSIM on our website at least 3 days before your departure date.
https://en.dhasim.jp/activation
Please contact our customer support should you require immediate assistance.
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[Expiry] 6 months after purchase. Please use this SIM card within the expiry date.
  
[High-speed communication] Wide-range, high-speed communication using Korea's largest telco SK telecom.
  
[Supported devices] SIM-free smartphones and tablets. Tethering available.
  
[Supported frequency bands] 4G/LTE: Band 1/3/8; 3G/W-CDMA: Band 1
  
[Product package] 3-in-1 SIM card, SIM card removal pin, instruction manual

[How to use]
1. Access the activation application page from the QR code on te package.
2. Enter the necessary fields in the application page.
3. Insert your SIM card at your destination. Turn on "Data Roaming" and "5G/4G/LTE" under Settings > Mobile Service.
*Please apply for activation at least 3 days before departure. For immediate assistance, please contact our support center.
*There may be cases where the eSIM does not work when using MVNO (low-cost SIM). Please delete the profile of the MVNO (low-cost SIM) first and proceed to setting up the eSIM.

[Safe support]
We provide support in Japanese, English, and Chinese, from sales to consultation regarding usage. Please feel free to contact us if you have any questions about the product or its setup.
We provide local support, replacement, and reissuing of SIM cards in Korea.