Wi-Fi, which is for Wireless-Fidelity, is a type of wireless networking protocol that allows devices communicate to the Internet without cords or cables. When your Android phone is connected to Wi-Fi network, it is available to surf the Internet. Wi-Fi network helps you save data usage. Moreover, it is faster and more stable than a cell connection. When sitting in a café, visiting a friend at his/her house, replacing a router, and so on, go to your Android phone and join the available Wi-Fi.
What you need:
Step 1. Turn on your Android phone. Go to "Settings" > "Wi-Fi".
If you don't see the network, it may be hidden. Scroll down the bar and tap on "Add Wi-Fi network".
Step 2. To add Wi-Fi network,enter the network name (SSID) into the box. Tap "Security" and pick the security type for the network. Then enter password. For open networks, just default "None", which requires no password. Then tap on "CONNECT". Your device will scan and search the network.You can skip the step if the Wi-Fi has been shown on the list.
Step 3. Turn on Wi-Fi by tapping on the ON/OFF button. When it turns into green, the Wi-Fi option is on. Then the Android device will automatically search and detect Wi-Fi networks nearby. Select a Wi-Fi network from the list.
Step 4. You are required to enter the password. After that, hit the "CONNECT" button to join.
Note: Some open Wi-Fi networks in public don't require a password. However, they might cause info leak of your connected device. Do careful when you use it.
With multiple Wi-Fi access points saved on your Android phone and tablets such as Samsung, HTC, LG, Motorola, Sony, etc, it is quite normal to forget the security key to a certain network. Actually, you can see password of the connected/saved Wi-Fi.However, any app built in your Android phone cannot do that. In this sense, we recommend the application Root Explorer. This method applies to a rooted Android. If your Android phone hasn't got root access, root it first. Then follow the steps to check password.
Step 1. First of all, discover the app Root Explorer at Play Store. Download the apk and installed it on your Android phone. Note that your phone must operate on Android 4.3+.
Step 2. Run Root Explorer on your Android phone. You will be in the "ROOT" page. Scroll down the page and find out "data". Hit and go into this category. In the next screen, select "msic".
Step 3. In the page MISC, you will see the option "wifi", which contains your need file. Hit "wifi" and jump to the next screen. Find out "wpa_supplicant.conf".
Step 4. Finally, you come to the page "wpa_supplicant.conf". You can see "network" in the red square. It is the Wi-Fi that your Android phone had once connected to. Take the screenshot as an example. As the image shows, "huiyi02" that follows "ssid" is the Wi-Fi name. "ch_12345678" that is behind "psk" is the password of the Wi-Fi.
Your Android phone has connected to the Wi-Fi network. Enjoy! This tutorial can be applied to most Android brands, such as Samsung phone, HTC, Sony, LG, etc. Have a try!