The guarantee of our most products is one year. Before shipping out, all goods have been double verified by OBDTOP.com. Our test engineer will check for quality, including check the basic function of the hardware and software, the appearance, the packing, the necessary accessories and power adapter plug standard. After finish quality check,our QC stuff will carefully do quality check and paste our own QC label in the form of month/date/year on every product.
If you have any using problem of the products which buy from OBDTOP.com, please feedback to us first, and we will discuss the issue with you. Via our technical support, we can dig out your using problem via our technical support in most of cases.
If products get lost in delivery, or you still do not get your item for a long time, please contact our customer service timely. We will deal with this ASAP. Please do not deal with it all by yourself, we want you communicate with us. Usually, we will provide tracking number and tracking link timely. If products get lost on the way and we get confirm from couriers, we will arrange redelivery for your products. If you want ship it through express, then you need to pay express shipping fee.