ROCKHIP mp4 player non-boot, not link the computer, and see if there are no open machines where not Welding firmly or charred,
And then use the power to see machines, according to boot keys. show a white screen, in the current is about 50 MA, and still not boot,
To the question, is certainly the power supply not normal , look at the 1.8 V IC, to 1.8 V (IC) replaced sure