I'm a bit late with the update!
I've tried with firmware 1.0 provided from foxoffer support and the problem is the same.
Support has been very good, but I have to pay the shipping to China while they are going to send me a new camera.
I've uploaded a video to show the bad quality when it gets dark with yellow tint overall.
For the rest the camera is very good. Next time I would stick some damping material under the GPS socket, because the audio take a lot of vibration and very deep frequencies form my car.