This defect is serious. The data lock prevents 911 service availability in emergencies. Users will not know the phone is locked out until a call is attempted thus hindering emergency contact. The only way to recover from the lockup is remove the battery, resulting in an unnecessary delay in what could be a life threatening situation.
As shown by feedback on a FaceBook(1) group dedicated to the lockup and Sprints own forums(2), Samsung/Sprint mass sold a defective phone to its customers and has neglected to fix the phone, recall the devices, issue functional replacements, or refunds.:
According to the user Mkeng5 on Sprint's forum, Samsung is also violating their own Standard Warranty policy by not producing a valid fix for the phone:
Please help make this serious issue known so Sprint/Samsung will be motivated to provide a valid solution.