최종 업데이트: 2025-12-01

How to fix "This code is no longer valid" Error on iPhone

Data Plan Cannot be Added.
This code is no longer valid. Contact your carrier for more information."

Solution

1. Check your Internet connection

Before installing or activating your eSIM, ensure your device is connected to a stable Wi-Fi or mobile data network. An active Internet connection is required for your iPhone to download, verify, and activate the eSIM profile.

2. The eSIM may already be installed

In many cases, the eSIM has already been installed automatically after scanning the QR code. To confirm, please check the following settings:

Open Settings
Tap Cellular (or Mobile Data in some regions)
Tap Cellular Data at the top and select the eSIM plan on the next screen → This ensures your device uses the eSIM for mobile data.
Go back to Cellular, scroll down, and tap the eSIM plan (it may appear as Personal, Travel, or Secondary)
Ensure Turn On This Line is ON
Ensure Data Roaming is ON

If you see your esimNB eSIM listed and the settings above are correctly enabled, the eSIM is already active. It will automatically connect to the network once you arrive at your destination—no further action is required.

Get Support

If you cannot locate the eSIM after completing the steps above, please contact our support team (hello@esimnb.com). We’ll verify your activation status and assist you with a quick resolution.

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DTDylan Tao

세계 탐험에 깊은 열정을 지닌 중국인 여행가이자 모험가입니다. INFJ로서 새로운 경험, 문화, 아이디어에 대한 호기심이 많습니다. esimNB에서 고객 지원과 기술 지원을 담당하며, 사용자와 긴밀히 소통하면서 실용적인 여행 팁과 유용한 eSIM 가이드를 공유합니다. 그의 인생 신조는 '자신 있게, 여유롭게, 용감하게, 진솔하게'입니다.