If you have set up 2-step authentication to secure your Naver account, it may be difficult or impossible to log in if you lose your authentication device. However, there is no need to panic. Naver provides various solutions to access your account even if you lose your device. Check out the step-by-step solutions below.
Situations where 2-step authentication is required
If 2-step authentication is activated when you log in to your Naver account, you must accept the authentication request on the previously registered device. However, you may have difficulty logging in in the following cases: 네이버 2단계 인증 기기 분실
If you lost your phone and cannot be authenticated
If you initialized the device or deleted the Naver app 윤과장의 소소한 일상 이야기
If you changed to a new device but previously registered a 2-step authentication device
If you set up Naver OTP but do not have a backup code
In these situations, you can try to log in or reset authentication in several ways.
Method 1: Log in from a trusted device
If you have a PC or smartphone registered as a “trusted device” after setting up 2-step authentication, you can access your account without additional authentication by logging in from that device.
How to verify
Try logging in from a PC or mobile device that you have recently logged in to your Naver account
You can disable 2-step authentication after logging in from that device
How to disable:
After logging in to Naver, go to [My Information] → [Security Settings]
Disable 2-step authentication or add a new device
You can also log in from another device
Method 2: Use a backup code
When you set up 2-step authentication, Naver provides a backup code. If you keep this code, you can log in even if you lose your authentication device.
How to use a backup code
Select “Enter backup code” on the 2-step authentication screen when logging in
Enter the backup code you saved in advance
Register a new authentication device after successful login
What if you don’t have a backup code?
If you haven’t saved a backup code, you need to try another method.
Method 3: Disable authentication through Naver Customer Center
If you still can’t log in using the above method, you can request 2-step authentication to be disabled through Naver Customer Center after verifying your identity.
How to apply
Go to Naver Customer Center (https://help.naver.com/)
Select “Log in/Find information” → “Request to deactivate 2-step authentication”
Enter your identity verification information
Your mobile phone number is required
Enter the email address or other information you registered when signing up
Deactivate 2-step authentication after identity verification
Requests for deactivation through the Customer Center are processed within 24 hours on average, but it may take longer if identity verification is not completed properly.
Method 4: Change authentication device on a new device
If you purchased a new smartphone or reinstalled the existing Naver app, you can change the authentication device using the following method.
Log in to Naver on a trusted device
Go to [My Information] → [Security Settings]
Log in to the Naver app on a new device and register the authentication device
Delete the existing authentication device and use the new device
Method 5: How to respond when using Naver OTP (Authenticator)
If you set up 2-step authentication using Naver OTP (Google OTP, Authenticator app), you must set up OTP again on a new device if you lose your phone.
When logging in to Naver, enter the backup code on the “Enter OTP Code” screen. If you do not have a backup code, request OTP deactivation through Naver Customer Center. After deactivating OTP, reset OTP on a new device. Additional tips for safely protecting your Naver account.
Save backup code: Be sure to write down the backup code provided when setting up 2-step authentication.
Register multiple trusted devices: Do not register just one smartphone, but also register a frequently used PC to help in case of device loss.
Register emergency contact: Registering an email and secondary contact to your Naver account makes it easier to verify your identity.
Conclusion
If you lose your Naver 2-step authentication device, it may be difficult to log in, but you can solve the problem by logging in from a trusted device, using a backup code, or requesting the customer center. If you save the backup code in advance and register a trusted device, you can easily access your account without panicking even if you suddenly lose your device.
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