GF22 GPS Car Tracker Problems. Ordered from Banggood. Order No: 112235871

I followed up all instructions from the user manual. I put in the 2G GSM compatible SIM card and turn the GF-22 on. The blue light which indicates the GPS is not lighting. When I open the 360GPS app on the mobile phone and go to Target button, there is no information about GPS (it should be written GPS offline or GPS online). Than I can not use GF-22 properly because of missing with GPS signal.