Technical support
If you find that your product is defective within the warranty period, please follow the steps below. 
-Contact us to get RMA request form from VAN. 
-Submit your RMA request form. 
-Once get the confirmation from VAN, please ship it back to us. 
-VAN when receive the defective devices, will repair it in a short time. 
-VAN will test the devices to make sure the devices are in good condition, and then ship it back.