My phone updated to GRJ90 about two weeks ago and now I can no longer use WiFi hot-spot or USB tethering. When I try, my 3G connection is dropped. After disconnecting and waiting a few minutes, it comes back up. I used to be able to tether before the update. How can I bypass this, or stop the 3G from disconnecting when tethering. Sprint tells me that I need to pay for a hot-spot plan for $30, but there has to be a way around this besides rooting my phone and putting Cyanogen on it.
Phone: Nexus S 4G from Google Carrier: Sprint