How to Turn Your Android Phone into a Free WiFi Hotspot (without Root). The mobile hotspot feature allows your Android phone to share its cellular data connection by creating a Wi-Fi network
Open the Settings app.
It’s found on the apps screen. Some phones may feature a Mobile Hotspot or 4G Hotspot app. If so, open it instead.
Touch the More item in the Wireless & Networks section, and then choose Tethering & Portable Hotspot. The Tethering & Mobile Hotspot item might be found on the main settings app screen.
You may see text “Wi-Fi Hotspot” describing the process. Then, Touch the box to place a check mark by the Portable Wi-Fi Hotspot or Mobile Hotspot item. On some Adroid phones you will just see a button written “OFF” then just touch it to Turn it ON
Then, The hotspot is on, but you may want to confirm some of the settings.
If the hotspot doesn’t come on or the item is disabled, your phone is incapable of creating a Wi-Fi hotspot or that feature is unavailable under your data subscription plan.
YOU CAN ADD PASWORD TO YOUR Wi-Fi
Choose the Set Up Wi-Fi Hotspot item to give the hotspot a name, or SSID, and then review, change, or assign a password.
Touch the fields on the Set Up Wi-Fi Hotspot screen to assign a name and password. Touch the Save or OK button to set your changes.
When your Android mobile hotspot is active, you will see the Hotspot Active notification icon, similar to the one shown.
You can then access the hotspot by using any computer or mobile device that has Wi-Fi capabilities.
Plug the phone into a power source. The mobile hotspot feature can draw a lot of power.
The range for the mobile hotspot is about 30 feet. Items such as walls and tornados can interfere with the signal, rendering it much shorter.
Don’t forget to turn off the mobile hotspot when you’re done using it.