ADB cannot be used, prompting Error:unknown host service solution

at this point, you need to identify the computer's 5037 port by which Application method used by the program: (Requires 5037 port is idle when using ADB)

1. Open the command line and enter the command: Netstat-ano |findstr "5037"

2, check to see the corresponding process PID is 7952

Ctrl+alt+delete, open Task Manager to see which process is taking up 7952

3 , end the process

4 , if a process is found, multiple closures cannot be turned off, you can try uninstalling the app

Finally, if you are still unable to connect to the device, prompt devices NotFound, you can try the following command:

ADB kill-server

ADB start-server

ADB remount

ADB cannot be used, prompting Error:unknown host service solution