Uncategorized Cannot Complete LINE Age Verification? Cause-Specific Guide for Carrier and Budget SIM Users
To use friend-search features such as ID Search or Phone Number Search on LINE, you must complete "Age Verification" to certify that you are 18 or older. However, many users—especially those who have recently switched devices or use a Budget SIM (MVNO)—frequently encounter errors such as "Verification failed" or being unable to access the carrier authentication screen.In this article, we categorize the specific causes of LINE age verification failures into three patterns and provide a detailed recovery guide. We also highlight specific workarounds for Budget SIM users. Let’s resolve these issues so you can use the ID search feature without a hitch.