I have the My Android Tools app on my Volt, and I unchecked "Tethering$ Entitlement Check Service" in the Android system section, and now my WiFi tether work for free 
I don't know if anyone has already tried this and posted about it, I just tried it on a hunch and it totally Works
I don't know if anyone has already tried this and posted about it, I just tried it on a hunch and it totally Works 
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