Details about phone number registration and verification 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.
If a screen saying "Unable to use account" suddenly appeared, please check the information for each of the three scenarios below, in order.
You haven't registered your currently contracted phone number to LINE
If the phone number you registered to LINE isn't the same as the one you are currently contracted with, you may suddenly become unable to use LINE.
Once a certain amount of time passes after canceling your phone number, it can be contracted to and used by someone else.
If the new contract holder of the phone number registers it to LINE, the LINE account it had been registered to becomes unavailable.
Related Help article:
The other person cannot access your LINE data (such as your friends or chat history) and your account has not been stolen.
To prevent the same situation from occurring in the future, be sure to register your latest phone number to LINE if it changes.
As there is no way to transfer your previous LINE account, we ask that you create a new LINE account with the phone number you're currently contracted with.
We may be able to transfer some paid items after looking into the matter.
The following can be transferred:
• Stickers, themes, and emoji (including those received as gifts)
• Your purchase history of paid items, along with your Coin and LINE Point balances
• Your Credit balance added on LINE STORE
If you'd like us to look into your paid items, please contact us via
this Inquiry Form.
You entered and verified the same information with LINE on another device
The same phone number, Apple ID, or Google account being registered to (verified with) more than one LINE account is causing the issue.
You can only register (verify) one phone number, Apple ID, or Google account to one LINE account. If you verify your LINE account with the same phone number, Apple ID, or Google account on a different device, the account on your previous device will automatically be deleted and you will no longer be able to use it.
The following can be transferred:
• Stickers, themes, and emoji (including those received as gifts)
• Your purchase history of paid items, along with your Coin and LINE Point balances
• Your Credit balance added on LINE STORE
If you'd like us to look into your paid items, please contact us via
this Inquiry Form.
Someone else entered your information (e.g. verification code, phone number, password, account transfer code) on another device
If you don't think the scenarios above apply to your situation, it's possible someone else used your information and performed an unauthorized login on/stole your LINE account.
If we confirm an unauthorized login as the result of our investigation, we will transfer your items.
The following can be transferred:
• The right to use your paid items such as your LINE stickers and themes (including those received as gifts)
• Your item purchase history and Coin balance
• Your Credit balance added on LINE STORE
Let us know if we can make it better.
Note:
- Do not enter any personal information.
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