After submitting the order, we need to connect the product to a power test, then load a free map, test the performance, and then use a multi-layer anti-collision box and a bubble shock bag to ensure that the product is safely delivered to your hands. Delivery takes 1-3 business days after purchase, please be patient. About after sales: If there is a problem after receiving the goods, please give us a chance to serve you. Please do not open the dispute. The dispute is handled by the platform. The platform is not professional and cannot solve your fundamental problems. Please trust us. Please contact us as soon as possible Via AliExpress, we will get back to you within 12 hours due to jet lag FAQ  Q: What can I do for faster shipping? A: Please make sure you leave correct (mobile) phone number/Post code and delivery address in AliExpress order system, any worng information will delay order shipping, customs clearance and local delivery time. After placing order, please send us your car detailed information to check to avoid mistake. Please pay attention to the message sending from AliExpress and reply ASAP for faster shipping. Q: Does 4G version support my local SIM card? A: It supports the following bands 2G: GSM900(Band 8); DCS1800(Band 3); CDMA(BandC0) 3G: DT-SCDMA(Band 34); WCDMA(Band 1); CDMA2000(BandC0) 4G: DT-LTE(Band 39/40/41); FDD-LTE(Band 3); FDD-LTE(Band 3); TD-LTE (Band 40/41) Q: Why don't you have a paper user manual? A: We stopped the traditional printed user manual for many years, because there is no way to show videos and a lot of photos by paper manuals. The update of the product is very fast too. We will leave you the download link of installation and operation guide in aliexpress message system after shipping out the order. Please check all files carefully when you get the parcel. There is warranty card with technical support contact in the package. If you need help, please contact us at any time. Q: Will you preload navigation map for me? How can I update it? A: We will preload Navitel map according to the destination country for test(We will update the map data every July, if you need please contact us for download link). You can download and install your local navigation APP from google play store.If it can't work, please contact us. Q: Need I pay import tax? A: Import duties, VAT taxes and other local charges are not included in the item price or shipping charges. These charges are the buyer's responsibility. Please visit the rule of Aliexpress http://activities.aliexpress.com/adcms/help-aliexpress-com/customs_related_issues.php Please check with your country's customs website about import policy and if there is any additional cost prior to buying. If the buyers have better method to help clear the customs, please contact us. For customers from EU, you can choose seller's shipping method for tax prepaid service. Q: What is the benefit for 5 star Feedback? A: After you get the product and everything is OK, please confirm the order and give us all 5 rating. If you can share the photos on aliexpress, we will extend your warranty to 2 years. If you have any problem or suggestion or need any help, please contact us by message or email, we promise to reply you within 24 hours. Our service is life time. Please contact us before leaving any negative and neutral feedback or open any dispute, only communication can solve your problems.We are always standby to improve.