It's possible change the bands on the storm ?
because i have a bb storm from vodafone (spain) and im from southamerica and in my country the 3g works on the band 1900
bands are hardware based, if you had a quad band device like what vzw offers, then you can choose from the cdma and gsm options. since the GSM carriers the phone is designed to support uses a different band for 3G then you're prolly outta luck my friend.