How to Make Your iPhone a Hotspot
There may be times when you need to connect your laptop to the Internet, but there is no Wi-Fi or wired network available. Don't be worry. With your iPhone, however, you could have access to an instant Wi-Fi hotspot of your very own!
1. Open Settings
Tap the "Settings" icon, usually located on the Home screen, to open the Settings control panel.
2. Tap Personal Hotspot
If you have enabled "Personal Hotspot" from your wireless provider, you will see the Personal Hotspot icon in the first group of settings.
Note: if you have not enabled this service from your wireless provider, you must do so before proceeding. Visit your carrier's website, and find the service that best suits your needs and budget.
3. Turn on Personal Hotspot
Tap the toggle switch at the very top of the "Personal Hotspot" control panel to enable Wi-Fi sharing.
4. Set a password
The current password is listed in plain text. If you've just set up your service plan with your wireless provider, there will be a default password in place. To change it, tap the Wi-Fi password button, enter a new password, then click "Done". You can also just leave the default password as-is. Make sure you note it for future use.