Recently some friends that switched to AT&T’s wonderful Data Pro plan of 5GB with tethering for $50 had some difficulties. When they went to Settings>General>Network, the “Set Up Personal Hotspot” option was not available.
So when I went looking for fixes I found these options below.
You can try the following first:
Scroll to the bottom and select Reset Network Settings and confirm.
Once your iPhone restarts, the Personal Hotspot should reappear in the Settings main page. If it still is not there, try changing the name of your iPhone:
Open Settings >General>About >Name
Choose a name with no spaces or other characters.
Reset your iPhone by holding the Sleep/Wake and the Home buttons until the Apple logo appears, then let go.
The Personal Hotspot setting may have been set to off during the iOS 5 update. If that was the case:
Open Settings > General > Network
Activate Personal Hotspot.
So after this we had some people that still did not have the “Set Up Personal Hotspot” option available. Well after some research I have found the potential culprit! An app called Onavo that compresses data used by your apps and saves the user on their data plan.
The problem is that it removes the “Set Up Personal Hotspot” option. However, deleting the Onavo app isn’t enough. You have to remove the Onavo profile as well. Go to Settings>General>Profiles>Onavo>Remove Profile. This has helped return the “Set Up Personal Hotspot” option for many. I have contacted the app developer to advise them of this as well. Hope this helps!