I have an existing account with Boost Mobile with a W385 (CDMA). I've made many attempts to activate without success. Most often I've been told that the first three digits of the MEID are not Boost Mobile, 268 (mine are 270).
This last attempt it did seemed to go through. However, no plan (such as $50 unlimited, which I have) came up that he could chose from to continue the process....