There are many implementation schemes for remotely controlling a computer. I will not give examples one by one here, but the tools for remotely controlling a mobile phone are really uncommon.
For example, remotely control a mobile phone from a computer, or remotely control another mobile phone from one mobile phone.
Upper process:
1 Install TeamViewer on the host (computer or mobile phone)
2 Install QuickSupport on the controlled end (mobile phone)
3 The products of the teamviewer series will assign an ID number to each device, and the main control end enters the id of the controlled end to connect, and the controlled end agrees.
Permissions:
The cell phone of the accused terminal needs root permission. Otherwise, you can only connect to the mobile phone remotely, and cannot screen share and operate the mobile phone.
Confusion encountered during this period:
The test machine is Redmi, rooted, but at the beginning of the connection, "Your partner has refused your connection request" will always appear. This is obviously the reason for the permission, because I did not ask me whether to give root permission, so I did it for me. Refused.
In the beginning, I used 360 one-key root to obtain root privileges. Later, I heard that root was not completely said (I wonder if there is a scientific basis). So I removed 360root and tried with kingRoot. This time, when I connected the phone, a prompt box asking for root permissions popped up, and I agreed to give QuickSupport root permissions and the connection was disconnected.