No "Allow USB debugging" Prompt in Win7 System

Since the win7 system does not come with an adb driver, if you want to successfully cast your phone to the computer, you need to install the adb driver.

Specific methods:

1. Download ADB on the computer and install it

Download address:

https://ldres.obs.cn-east-3.myhuaweicloud.com/rcmnq/qqdownload/ADBDriverInstaller.exe

2. Plug the phone into the computer, select the file transfer mode, and ensure that the developer mode and USB debugging are turned on.

3. Open ADBDriverInstaller.exe, click Refresh to refresh the list, then select your phone in the list, and finally click [Install] in the lower right corner

4. After finishing it, go to the main page of OSLink computer again, click Screen Mirroring, and go through the process of turning on screen