How do you enable Hotspot Wifi Sharing on Nexus 5 Android M version on Sprint, Tmobile, and AT&T? I just loaded the Android M preview version as of July 2015. I'm also on the Sprint network and my phone is rooted. How can I enable wifi hotspot ability on Android M?
I just tried it, and this worked for me:

(Nexus 6, Android M Preview 3, Sprint)


With root browser go to /system/ and open build.prop in a text editor. 
Add net.tethering.noprovisioning=true to the bottom. 
Save and reboot.


In Android L, I also had to do the tether_dun_required thing, but now that database just doesn't show up for me in Android M.