Having the ability to be able to turn your mobile into a Wi-Fi hotspot can be a very useful feature, and luckily this is very easy to do on the Nexus 4 and should only take about 30 seconds to do. Below you can see the simple steps to take to enable the built-in feature as well as a step-by-step walkthrough. I am using a Nexus 4 (bought via the Play Store) using Jelly Bean 4.2.1.
Settings>Data usage (More)>Tethering & portable hotspot>Set up Wi-Fi hotspot
Firstly, to get to your settings simply hold and slide your finger from the top of the screen downwards
Now select the icon at the top right corner
Under Data usage select More
Now select Tethering & portable hotspot
Select Set up Wi-Fi hotspot
This is where you are able to change your SSID (Service set identification), type of security and password. By default the SSID will be AndroidAP. Change this to what ever you want your hotspot to be called. If you want to leave the security to Open you can. but bear in mind that anyone will be able to access the internet via your mobile if you have your Wi-Fi hotspot left on. It’s best to add security to it, so select WPA2 PSK (orWPA PSK) You can change any of these settings whenever you wish.
Now create a password with at least 8 characters (try to use upper and lowercase along with some numbers and/or symbols) Now hit Save
Once you hit Save you will be taken back to the Tethering & portable hotspot window, which is still disabled
Simply check the box to enable your hotspot and away you go
A few things to bear in mind are to check that you are able to use tethering with your data plan, which shouldn’t be an issue with most, but it’s best to check. I am using Three (UK) as my pay-monthly carrier and haven’t had any issues yet, but not all suppliers are the same. If you are on a limited data plan then try to restrict how much you use this feature as it’s quite easy to chew through data. Also, remember to disable your hotspot once you are finished using it, especially if you elected to use an Open connection when you set it up, allowing anyone to use your data.