Logging in/out of LINE on your sub device (iPad/Android device)

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The information in this Help article is for those using an iPad or Android smartphone/tablet as a sub device (using the same LINE account as your main device).
Important: To log in to LINE on Android as a sub device, you need to use LINE version 15.3.0 or later. Update to the latest version of LINE.
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For information about the difference between main and sub devices, see Using the same LINE account on more than one device.

Topics covered
- The verification code used to log in to your sub device
- Logging in to LINE on your sub device
- Logging out of LINE on your sub device


The verification code used to log in to your sub device:
You may be asked to enter a verification code on your main device when you log in to LINE for the first time or when you reinstall LINE on your sub device. If you're asked to enter a verification code, see the following steps.

1. Start LINE on your main device.
2. Enter the verification code that appears on your sub device into your main device.
3. Confirm that the device you are trying to log in with is correct, and check the box.
4. Tap Verify.

Note:
- Be sure to enter the verification code that's displayed within three minutes.
- If the screen to enter the verification code doesn't appear on LINE on your main device, restart LINE on your main device and try logging in to LINE on your sub device again.


Logging in to LINE on your sub device:
You can log in to LINE on your sub device with:
• An email address
• A QR code
• Biometric information (using your main device to log in)

Logging in with an email address
You may be asked to enter a verification code on your main device when you log in to LINE for the first time on your sub device.

iPad 1. Register an email address on your main device if you haven't already.
2. Start LINE on your sub device.
3. Tap Other ways to log in > Log in with email.
iPad login screen
    
4. Enter your registered email address and password, then tap Log in.

Android 1. Register an email address on your main device if you haven't already.
2. Start LINE on your sub device.
3. Tap Log in > Sub device > OK > Log in with email.
Android log in with email
4. Enter your registered email address and password, then tap right arrow.

Logging in with a QR code
You may be asked to enter a verification code on your main device when you log in to LINE for the first time on your sub device.

iPad 1. Start LINE on your sub device.
2. Select Other ways to log in.
iPad login screen
3. Start the QR code reader on your main device and scan the QR code that appears on your sub device.
4. On your main device, tap Log in > Verify.

Android 1. Start LINE on your sub device.
2. Tap Log in > Sub device > OK.
Android QR code login

3. Start the QR code reader on your main device and scan the QR code that appears on your sub device.
4. On your main device, tap Log in > Verify.

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- The location (e.g. prefecture, city) that appears on the login screen is based on the IP address of the device (e.g. PC, iPad) that is trying to log in to your account.
- If the QR code expired, tap Regenerate icon and log in from the updated QR code.

Logging in with biometric information (using your main device to log in)
Note: The contents of this section only apply to LINE accounts created with LINE versions earlier than 13.11.0 if you're not using LINE in Hong Kong, Japan, Korea, Taiwan, or Thailand.
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Biometric logins are only supported on iPads.
You can log in with the biometric information (e.g. face, fingerprint) registered to your main device when you use an iPad as a sub device with the same LINE account as your main device.

By logging in with your biometric information, you can manage your LINE account more securely than with using an email address and password.
Note: Your biometric information isn't saved on the LINE app or servers.

For the requirements and preparations for logging in with biometric information, refer to the following Help article.

How logins with biometric information work

When logging in to LINE with biometric information for the first time:
1. Start LINE on your sub device.
2. Enter your phone number and tap Log in with smartphone.
iPad login screen
3. Tap Show verification code.
4. Start LINE on your main device and tap the Home tab > Settings > Account > Pair a new device.
5. Enter the verification code that appears on your sub device into your main device.
6. Authenticate the login with the biometric information on your main device when prompted to do so.

When logging in after the first time:
1. Start LINE on your sub device.
2. Enter your phone number and tap Log in with smartphone.
3. Start LINE on your main device and authenticate the login with the biometric information when prompted to do so.

"Login successful!" will appear when you're logged in. The LINE official account will also send a login notification message to you on your main device.
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If logins with biometric information have been locked, be sure to enter the passcode or PIN configured on your main device, which is not the same as the passcode lock for LINE.


Logging out of LINE on your sub device:
To log out of LINE on your sub device:
1. On your sub device, tap Settings > Account.
2. iPad: Tap Log out > OK > OK.
    Android device: Tap Log out > Log out.