After Xiaomi 5x upgraded to the stable version of MIUI 10.3.1.0, the 4G signal was very poor, and there were even frequent disconnections.

The reason why mobile phone 4G signal is poor is that the signal will be affected by various factors such as terrain, landforms, tall buildings and so on during the propagation process. If you are in a relatively closed place, the signal will be affected. The solution is as follows:

1. Turn the phone on and off again and try again;

2. Change the phone card to a family or friend’s phone and try again;

3. Check whether other Unicom users around you have signals;

If there is no signal, you can contact manual customer service for feedback.