Before the update to jb I could use my phone as a hotspot. Yes my laptop. Now cannot use as a hotspot. Do I need to do something with the app to get it to work?
They took the ability to tether completely away on JB without a subscription.
You can use WiFi tether or barnacle, which or both free to USB tether without a subscription.
Wireless tether for a WiFi or USB connection if you prefer that.
All require root.