Samsung Galaxy S4: How to Share Mobile Data Connection Via Wi-Fi in Android 4.4 Kitkat

Wi-Fi is one of connectivity features available in the Samsung Galaxy SIV. You can use it to gain internet connection by connecting your phone to a Wi-Fi network, either it's an open or secured Wi-Fi network. Once you have an internet connection, you can use it to send emails, browsing webpages, install apps, etc.

See also: How to Connect to a Wi-Fi Network in Android 4.4 Kitkat in the Samsung Galaxy S4

Aside from the ability to connect to a Wi-Fi network, you can also set your phone as internet Access Point by using portable Wi-Fi hotspot feature. This feature will allow you to share your mobile data connection to another Wi-Fi enabled devices(max. 10 devices).

How to set Samsung Galaxy S4 as Wi-Fi hotspot?
To do so, kindly follow the steps listed below:

1. First, you have to enable the mobile data on your phone. From any screen, swipe down the top of the screen using two fingers and then tap Mobile data button to enable it(it shows green when it's enabled).
2. Now, go to Settings.
3. Tap Connections tab.
4. Tap More networks.
5. Tap Tethering and portable hotspot.
6. Slide the ON/OFF switch next to Portable Wi-Fi hotspot to the right to enable this option.
7. Tap Portable Wi-Fi hotspot to configure menus under this option. To change Wi-Fi hotspot access go to the step #8, to add allowed devices go to the step #9 while to configure Wi-Fi hotspot settings go to the step #10.
8. Change Wi-Fi hotspot access:
   To change Wi-Fi hotspot access, tap the Wi-Fi network name (by default the name is AndroidAP) and then select from the following options:
• All devices: select this option if you want all Wi-Fi enabled devices can access the internet via your data network.
• Allowed device only: select this option if you want only the devices in the Allowed devices list that can access the internet via your data network.
9. Add and remove devices in the Allowed devices list:
• Tap Allowed devices button.
• Tap Add button (+).
• Enter the device and the MAC address of the device you want to allow to access your Wi-Fi hotspot.
• Tap OK button.
• The device will be added to the Allowed devices list.
• To remove device from the list, tap the Trash can icon then select the device you want to remove from the list and then tap Delete button.
10. Configure portable Wi-Fi hotspot:
• Tap Configure button.
• If necessary, change the Wi-Fi network name by entering the required name in the Network SSID field.
• If necessary, check the box in the left side of Hide my device option to hide your network profile when another device is scanning Wi-Fi.
• If necessary, you can change the security. By default, the security is open or without using password but if you want to set password for your hotspot you can change the security to WPA2 PSK and then enter the password.
• Once done tap Save button to save the changes.

How to connect to a Wi-Fi hotspot?
I've tested these steps by using Samsung Galaxy Tab 2.7 with Android 4.3 Jelly Bean:

1. Go to Settings.
2. Under Wireless and network section, enable Wi-Fi by sliding the ON/OFF switch to the right.
3. The phone will automatically scan for the available Wi-Fi networks. If the Wi-Fi hotspot is open, then it will automatically connect. If you set the password for the Wi-Fi hotspot, tap the Wi-Fi network name (by default, the name is AndroidAP) and then enter the password and then tap Connect button.
4. The mobile data connection from Samsung Galaxy SIV now can be used in this phone.

For the record, while you set your phone as a Wi-Fi hotspot, it may consumes more battery. So, if you're tight with the battery issue, better you don't use this feature for a long time or simply use this feature as needed.