There are six main reasons for the mobile phone motherboard to burn out. Charger bad cause abnormal input voltage, so as to burn out mobile phone motherboard, this is the most common cause. Mobile phone into a liquid, such as water, washing in a washing machine, etc. Mobile phone charger interface is broken mobile phone motherboard burn out. Often caused by bad habits, such as long time to connect the charger to play mobile phone overheat and burn out. Bad batteries to result in mobile phone motherboard damage. Above is a common phone burn out reason, the occurrence probability and decrease from top to bottom. The mainboard burned out, not only change the mainboard can solve a problem, most likely other accessories including fuselage to an overhaul, basically equivalent to in a machine, the costs of about the same as buying a new cell phone is not much difference.