Hello i've Toshiba C55-B5302 when i try to turn on and then turn off again. You can turn on the laptop as normal. The LED lights on the laptop light up, but once this is done, the laptop just runs for 5 seconds and it automatically shuts off again. You can hear the fan run for a while but other that it just turns off. So what is the cause for a problem like this? i've dissasemly it and clean the fan there's no dust, i've remove the battery and keep the power button for 60sec read it on other forum, press many times the power button without the battery and the charger to reset the bios info, but without any luck.