After upgrading from a htc desire to a galaxy s1 (4g) the wi-fi hot spot does not work on the new phone. The feature still works on the other 2 htc desires on my 1500 min plan that I've had for the past 2 years. I wasn't told of ANY changes to my 1500 min plan, which inculdes 5GB/data per phone/month. I also stated that I didn't want anything changed on my current plan. Was told over the phone yesterday that I would have to pay an additional $45/month to get that feature on the new phone (tethering). I'm upset, because I'm already paying for 5GB of data for each of the 3 lines/phones on my account. Anybody else run into this problem?