In field test mode, every setting you see can be changed. Hit the menu key, then down to scroll through them. However, Like Level2 said, be warned. For example, I already messed up my phone. I went to "AudioOut". The origional setting was "AUTO" so I went through it, and it had different options,"HEAD", "HAND", "SPKR", "TOLR", "ROLR", and "EXT". But, oh no! Not more AUTO! Well, I put it to HAND, which makes the output go to the handset, but when I turn on speakerphone, it doesn't come on. SO, readers beware! If I don't figure out how to change it back, its ok, cuz the next flash from VZW will put it back. Anyway, who needs speakerphone!? (lol, just kidding)
...