Rangee devices are characterized by high durability and low failure rate. However, if a failure should occur, please fill in the RMA questionaire below. We will provide a RAM ticket for further processing. Hardware repair or replacement is cost-free under warranty. Please send the device sufficiently packed to avoid transport damages. Unpaid shipments can unfortunately not be accepted. We will send will a replacement device or the repaired device back. For devices that are outside the warranty, you will receive a cost estimate.