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Turning on the Passcode lock setting in LINE will prompt you for a numerical passcode or biometric authentication every time you open the LINE app.

To set, change, or remove a passcode, see the following sections.

Be advised

If you forget your LINE passcode, you will need to delete the LINE app and reinstall it. When you delete and reinstall the LINE app, all of your chat history that hasn't been backed up will be deleted, so be sure not to forget your passcode.

Setting a passcode lock

1. Tap Settings > Privacy.
2. Turn ON Passcode lock.
3. Enter the passcode you want to set twice.

If you don't want to use biometric authentication to unlock the LINE app, turn off Use Face ID to unlock/Use Touch ID to unlock.
Note: If biometric authentication isn't set on your device beforehand, the menu to unlock with biometric authentication will not appear.

Changing your passcode lock

1. Tap Settings > Privacy.
2. Tap Change passcode.
3. Enter your new passcode twice.

Removing your passcode lock

1. Tap Settings > Privacy.
2. Turn OFF Passcode lock.

Useful info

If you turned on Use Face ID to unlock/Use Touch ID to unlock, but it was removed (i.e. turned off), try the following:
• Change your passcode
• Turn on Passcode lock again after turning it off
Note: It's OK to use the same passcode.

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Setting a passcode lock on LINE

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