1.Lost Products: please contact our customer service on time If products is lost in delivery, or you still do not get your item for a long time, We will deal solve it ASAP. Please take all by yourself; we hope you can communicate with us. Usually, we will provide tracking number and tracking link on time. If products get lost on the way and we get confirm from couriers, we will arrange redelivery for you. If you want ship it through express, then you need to pay express shipping fee.
2. Warranty: most of our products have one year warranty. We will test it before sent out. Our QC will check the quality which includes the basic functions of the hardware and software, the appearance, the packing, the necessary accessories and power adapter plug standard. After that, they will paste our own QC label in the form of month/date/year on every product.
If you have any using problems of the products which bought from chinasinoy, please tell us first, then we will do our best to give you help. Our engineer will offer you technical support via internet or email.