Portable Wireless gps car tracker with voice monitoring

Question：Hi , my tracker device tells : user time expired 14-04-2019 and expired time 14-04-2019 What to do ??? | 2019/5/7 2:06:20

Question：My tracker has a hireexpiredate. How can I solved that problem? greats | 2018/8/18 15:21:52

Question：Need a price list of GPS trackers suitable for use in Australia on 3G / 4G | 2018/4/19 11:23:46

Question：Hello, I need a pricelist with all of your 3G trackers. | 2018/3/2 3:43:09

Question：Good day, I have problem with standby or sleep mode because your application daesnt have it only thing is you can switch off that is all, but remotly swith on fucntion is absent, so maybe do you have some sms commands to use sleep mode or swith on | 2017/9/4 3:31:21

Question：Hi, I have one of these devices and im trying to link it to my own platform at www.navixy.com. Can you please tell me how to reset the device and link it to the new platform... Do you have the user manual? Thanks | 2017/8/2 23:14:45