1, hardware problems motherboard power IC If there is a calculation error in the logic control unit, clearly the mobile phone battery has power, in the motherboard power IC this layer that the mobile phone battery has no power, and automatically shut down the mobile phone.
2, hardware problems battery leakage if the use of non-original charger, charging voltage and charging current control is not strict, it will also damage the battery of the phone, resulting in shutdown.
This battery may not be standard with yours, or it may not have enough capacity, so it will shut down frequently