This dash camera is always freezes, rebooting and randomly stop recording, the high speed chip is misleading, it runs very slow when using google map. It keep ask you if you wish switch to sleep mode every time when it turned on and you need set brightness every time when it turned on, otherwise it will turned really dark. Even the brightness set to brightest still hard to see if in a sunny day. Rear camera not clear at night, can’t see other car’s number plates. You must put the SIM card to keep the time setting right, if you not put SIM card the time will set to 2012-01-01. If you want refund they will ask you upload video as evidence, so you need find some one holding camera in you car to keep filming it when you driving. Totally waste my time.
When I installed the back up camera is not clear as they advertised.