Help Eonon Ga1312 auto device (1din) with issues


Hello, i week ago i bought the device in subject for my car.
But when I tried the microphone to use with Google Now and other apps or to recall some contact in Contacts through the voice I noticed that the mic didn't work.
I tried to hit a factory reset and a reset by hole in front of device but I didn't fix the issue.

The second issue concern i.e. when i watch something in streaming and any browser that I use, after some secs, gives me to visit website!
I'm very disappointed for my purchase.
How do you know how can I fix the issues?