Flashing radio's can be dangerous if you don't know what you're doing. Let's start with seeing what radio you're already on. Go to setting--.>about phone-->baseband version. What we're looking for is the string of numbers on the end starting in 1.0x.xx.xxxx. Once you figure that out, roozwiki has a great write-up on dinc2 radios and which ones you're looking for/need.