The motherboard is burned out, it can be repaired, generally look at the degree of damage, such as: like the patch resistance, patch two. The triode, the above low-voltage difference three-terminal voltage regulator chip, such components are damaged or can be repaired, if the main control chip is damaged, the fault in this case is generally directly changed the motherboard.
Cause of motherboard burnout:
1, the power supply without voltage protection, often in the voltage instability or sudden power failure of the electricity environment, easy to lead to damage including the motherboard, memory and other components.
2, the motherboard is soaked in water under the condition of power
3. Too much ash accumulates on the motherboard, resulting in short circuit of the microcircuit on the motherboard in a humid environment and damage.
4. The parts on the motherboard are plugged in the live condition, resulting in short-circuit damage to the motherboard.
5. Frequent use of non-original chargers may also damage the motherboard.
The IPhone12 motherboard burned, it may be that you are plugged in when you use it, and then use your Apple phone, leading to the high temperature of the motherboard, or it may be that you have been using the phone for too long when you play the phone, and did not notice that the temperature of the phone was reduced, resulting in the motherboard burning
1, the charger is bad cause the input voltage is abnormal, thus burning the mobile phone motherboard, which is the most common reason.
2, caused by the mobile phone into the liquid, such as dropping water, washing in the washing machine.
3, the mobile phone charging interface is broken, causing the mobile phone motherboard to burn out.