damage: - totally dead. - press the power, the electric current rises to 0.60A. - the power button is released, the electric current directly drop to 0A. analysis: - while press and hold the power button a few minutes touch hot parts. - it comes hot around the area of power. solution: - do not remove the power button because then pulse current will continue to flow to facilitate heat localized areas. Unlike the short VBAT, injek enough voltage at the VBAT track hot area will be easy to be detected. - since this is a case of short after pressing the power button, then the way as the above points. - after knowing the area of heat, the following is to measure one by one capacitor suspected short area around the power. If you've met, injek voltage slowly on a short track suspected earlier, if the right target, the short component was immediately removed