i have a milestone that is unlocked for any carrier (not factory) that came with 2.1 already in it i was in settings menu to check and see if there were any updates for the phone and there was i did the update and let phone do its thing then i went to see if the firmware version changed from 2.1(update 1) and it said i was still on the same version i checked to see if there were anymore updates phone said no updates phone is up to date now i can make calls perfectly every time but since update my phone won't receive calls from time to time and it is on and says i have full signal instead i get a text msg saying 8888 who called now improved with the number of person who called