Personal Hotspot which first came with iOS 4.3.3 allows iPhone users to share internet connection to another device via USB, Bluetooth, or Wi-Fi. This feature may not be available in all devices around the world though since it’s carrier-dependent, that is – your carrier must support tethering.
Here in the Philippines, iPhone’s official carrier Globe Telecom actually supports tethering, the fact which I confirmed again when I switched to Globe’s all-new My SuperSurf plan just recently. I’ve been using Personal Hotspot since then not until yesterday when I discovered such feature vanished completely.
So how did I fix it? Well, it’s actually just a few taps in the phone which involve resetting network settings. If you’re into similar problem, you can follow the steps below.
From your iPhone springboard, launch Settings.
Tap General, scroll-down and look for Reset options.
Tap Reset Network Settings to restore factory defaults.
Wait until your iPhone reboot.
Once done, go check out your Network settings (Settings>General>Network) and there the Personal Hotspot feature is already restored.