What if my biosensor becomes loose? You’ll need to remove and apply a new one. Do not attempt to re-insert a loose biosensor. Loose biosensors which are not fully secured or attached may not give accurate glucose values. Need help? Please submit your request here. Related articles What if my biosensor comes off too soon? Will applying my biosensor be painful? What is a Lingo Count? What if my glucose reading is higher or lower than I expect? How is Lingo Real-Time?