I have had a Nikkai 2.4ghz wireless reversing camera on my motorhome for 5 years. The picture on the monitor stopped coming on and it displayed nothing more than a blue screen which would then turn off and the blue LED light would flash. Believing it was broken, I purchased a new Nikkai reversing camera which was an exact replacement. I have tried fitting this new one and am faced with the exact same problem of a blue screen which turns off to leave a blue flashing light. Does anyone have any ideas as to what might be wrong? Any help would be much appreciated. Thanks.