Foxfi will work without root
On a S4? I tried it this morning using the current version of FoxFi and couldn't get it to work.
What carrier are you with? It definitely works with Verizon, but from what I understand, it doesn't work with Sprint.
I'm with Verizon.
I un-installed both FoxFi and PdaNet+ and then re-installed just FoxFi. Seems to be working OK now.