defective QLQ months after j state have called sav 0157324522 and thus followed the instructions of the reference device defective under warranty al address = Cordon Electronics 32 rue downs villages 35510 Cesson Sevigne I just have the following response: We inform you that the DA710 model can not be treated in our workshops. If you want to return your product, thank you for giving us your consent to return and remember your details. Customer service cord .....