How to connect Xiaomi 1 1pro network card?

During use, the temperature of the mobile phone is too high, which will reduce the performance of the mobile phone. There is also the most important question. This problem can also occur if the Wi-Fi signal or data network signal is not good, or there are many obstacles around. In addition, Xiaomi 1 1pro mobile phone does have information baseband problems, and the signal is sometimes good or bad, which is a common problem.