Why is the SMS exported by Huawei mate7 garbled?

Maybe there is something wrong with your mobile phone system, so you can only solve it by brushing the machine. Android forum has a brush tutorial. It is also possible that your mobile phone is infected with a virus, which makes your mobile phone garbled. You can only solve it if you know all the data of your mobile phone. The method is: when turning off the phone, press and hold the power button at the same time, and press and hold the volume button (Huawei c8650 is like this) for a few seconds to enter an interface, which should be regarded as English. You can only choose wipe (you can choose it when you see wipe, and the volume button controls the up and down power button or the indoor button controls the confirmation). After wiping,