At the first time, I connected 18V and controlled the EX 106 as well at the free load by USB2Dynamixel and its program. Then I added the load about (1kg x 40 cm) and controlled it to move a few times and then suddenly it lost control and I've no longer searched it by Dynamixel program. It 's gone without any signs even sound, heat, smoke or smell. After that,it doesn't have a LED light when I inserted connector on it. I'd like to know how you can support the warranty after sales or how I can check or fix it by myself. For more information, I bought three EX106s, four RX64s, four RX28s, six RX10s and many items of accessories from you and I will buy them more if the prototype works. Please help me to solve this problem. I am looking forward to receiving your answer.