If I downgrade my iPhone firmware to 3.0.1 or 3.1.1 to have unlimited Internet

DevinMuncrief

New member
and still tether for free? Right now I'm paying an extra 20 bucks a month for internet tethering through my laptop I always exceed the limit before the month is up so I was wondering if
I could go back to old firmware and have unlimited Internet and still tether so I won't exceed any limits ever?
 
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