I am using a zte warp stock gingerbread 2.3.5 rooted phone. Your phone does not have to be rooted for this to work. You need cdma workshop to change your prl to a sprint prl. I use 60683.prl. there are other methods to change your prl.. that will be fine. As long as you change to a sprint prl. Step one. Change your prl Step to. Go to settings>wireless and networks>mobile networks. Step three. Change network mode to EvDo only. Step four. Go to dialer and dial *983*3640#. Scroll to bottom of page and confirm network mode is EvDo. Do not change anything, you will get FC. Step five. Reboot your phone and run speedtest app from market. Step six. Thank me if this helped you. Ultimately what you have done is put your phone on sprint towers using their EvDo network which is way better than boosts cdma. Your phone will still use sprint cdma but your 3g will be purely sprint EvDo.