There must be burning, although the burning of WiFi is less, but it is impossible to verify whether millet really replaced the glue and solder.
< br >
Burning wifi means the phone's wifi chip is broken.
The wifi chip of the mobile phone will be bad because the CPU is overheated, resulting in poor virtual welding contact of the cpu pin. It is recommended not to play with the phone while charging, otherwise it may cause the phone to be overloaded, resulting in overheating of the CPU and burning of the chip. Before burning wifi, the phone will automatically shut down the black screen, after restarting the WiFi can not be opened, can not search for WIFi signal.
The WiFi function of Mi 11 is usually not stable, and if the phone is in the scene of high load and high heat, there is a certain probability that the black screen will restart. After the restart, the WiFi function completely failed, and the nearby network could not be detected, but mobile data, Bluetooth, and NFC could be used normally. A heat will lead to CPU virtual welding resulting in various problems.