ES File Explorer File Manager Free download

Step 1: Go to CH Play, find and download the ES File Explorer File Manager application.

Step 2: Open the application and access the /data/misc/wifi folder.
If your device does not have this folder, you must do the following steps:
?In the left corner of the screen, choose Menu → Tool → Show Hidden Files. Select Local → /Device → Data → Misc → Wifi.

Step 3: Select the file wpa_supplicant.conf, then the screen will appear the Wi-Fi network name and saved password. Where SSID is the Wi-Fi name, PSK is the password. You can save the file or take a screenshot to remember this password.