Author of this article：Miya, Search engine optimization expert
LINE Web VersionIt is a practical tool to provide users with cross-device instant messaging, but in the actual use process, users may encounter some login obstacles, such as QR codes cannot be scanned, accounts are locked, and even the page displays an error message. In particular, issues such as the login prompt “400" can confuse users.
In ORDER TO HELP YOU QUICKLY INVESTIGATE AND SOLVE THESE PROBLEMS, THIS CHAPTER WILL combine common SCENARIOS TO analyze IN DETAIL THE REASONS WHY THE LINE WEB VERSION CANNOT LOG IN AND THE CORRESPONDING SOLUTIONS, AND SHARE SOME PRACTICAL TIPS TO HELP YOU AVOID SIMILAR PROBLEMS FROM HAPPENING AGAIN.
Mixdesk
AI Agent
Common problems and solutions
1. LINE Web version login prompt 400
Problem description: When some users log in, the page may prompt a “400” error code, indicating that the request cannot be completed normally.
Possible cause：
- Cache and Cookies cause data conflicts；
- Browser request is restricted；
- There was a temporary failure of the network connection.
solution：
- Clean up your browser cache and cookies and try to log in again；
- Switch the network environment and avoid using public networks or restricted local area networks；
- Change your browser and try to use Seamless mode or other browsers (such as Edge, Safari, etc.)；
- If THE PROBLEM PERSISTS, YOU CAN TRY TO COMPLETE THE LOGIN ON THE MOBILE TERMINAL, OR CONTACT LINE TECHNICAL SUPPORT FOR FURTHER ASSISTANCE.
2. QR code scanning failed
Possible cause: Inaccurate focus of the mobile phone camera, expired or unclear display of the QR code, unstable network connection and other factors may cause the QR code scanning to fail.
solution：
(1) Refresh the QR code: If the QR code is expired or blurred, you can refresh the browser page to generate a new QR code, and then try scanning again.
(2) Adjust the phone camera: Make sure that the mobile phone camera is clearly aligned with the QR code and avoid hand shaking. Scan in a well-lit environment to improve the recognition rate.
(3) Check the network connection: Make sure that both mobile phones and computers are connected to a stable network. You can switch to a more stable Wi-Fi or mobile data network, and then scan again.
(4) Try other browsers: If the problem persists, try using a different browser (such as switching from Chrome to Firefox), which can sometimes solve the compatibility issue.
3. Account is locked
Possible cause: Multiple incorrect PASSWORD input OR frequent LOGIN ATTEMPTS WILL TRIGGER LINE's SECURITY mechanism AND TEMPORARILY lock THE ACCOUNT.
solution：
(1) Waiting for automatic unlocking: LINE USUALLY UNLOCKS THE ACCOUNT AUTOMATICALLY WITHIN 10-15 MINUTES, AND USERS CAN TRY TO LOG IN AGAIN LATER.
(2) Reset password: If you forget YOUR PASSWORD OR YOUR ACCOUNT CANNOT BE UNLOCKED FOR A LONG TIME, YOU CAN USE IT IN THE LINE APP ON YOUR MOBILE PHONE.“Retrieve password"Function, try to log in again after resetting the password.
(3) Contact customer service: If THE ACCOUNT STILL CANNOT BE UNLOCKED, YOU CAN CONTACT CUSTOMER SERVICE THROUGH LINE's OFFICIAL SUPPORT PAGE AND PROVIDE ACCOUNT-RELATED INFORMATION FOR AUTHENTICATION TO HELP UNLOCK THE ACCOUNT.
4. Browser incompatible or cache issues
Possible cause: The BROWSER VERSION USED IS TOO OLD, OR THE BROWSER CACHES TOO MUCH DATA, WHICH WILL CAUSE THE LOGIN PAGE of THE LINE Web VERSION TO LOAD ABNORMALLY, AND THE QR CODE CANNOT BE DISPLAYED OR A WHITE SCREEN WILL APPEAR.
solution：
(1) Update browser: Make sure to use the latest version of the browser, go to the official website of the browser to download the latest version to ensure compatibility.
(2) Clean up the browser cache and Cookies: In the browser settings, clean up the cache and cookies, which can solve the loading problem caused by old data.
(3) Try seamless mode: Access THE LINE Web VERSION page in THE SEAMLESS mode or PRIVACY mode of the BROWSER, which can avoid INTERFERENCE from PLUG-INS OR EXTENSIONS on the login page.
Tips to avoid login problems
- Update your browser regularly to make sure you use the latest version；
- Avoid frequently switching devices after logging in to avoid triggering the security mechanism；
- When prompted for login failure, try again after a period of interval to avoid repeated operations in a short period of time.；
- Keep the network stable and try to choose a stable Wi-Fi environment.
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Mixdesk: Unlock more possibilities for the WEB version of LINE
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