1. Enter "wifi connection manager" in the store, search it out and click "Install".
2. After the installation, return to the mobile phone desktop and open the "wifi connection manager".
3. After opening, the network interfaces for wireless connection of all mobile phones will appear.
4. Click on the network to view.
5. After clicking, the relevant information of the network will appear.
6. Look down and click "Show password (root required).
7. At this point, a super user request pops up (mobile phone needs root), and click "Allow".
8. At this point, the mobile phone password has popped up, and you can see the wireless network name and password.