Some phones have never even been able to solve the ADB solution.

First look at the driver, is to use a variety of mobile phone assistant connection, see if it can be recognized, if you can successfully enter the connection mode, instructions available, note tick has been using the computer for debugging, if this step is not checked in the back also there is no way.

The second is to see the issue of Port occupancy, ADB Nodaemon server, this time will appear which ports occupy, usually 5073

Netstat-ano | findstr "5037" find this port, end it directly in the task Manager.

Some phones have never even been able to solve the ADB solution.