how to change from 1x to evdo or another x

[pandaboy]

I don't know if changing EV to 1x is a setting or a registry hack. I know that I did it before. my PPC used to be EV all the time, then I read something on this forum and changed it to 1x. Now even after 2 hard reboot, my Device is always on 1x.

Because of the change, with 1x, my reception is much lower.


edit --------------------- I found it --------------------------

It's in Setting-->Personal-->Phone-->Services--->Mode of operation---> Get settings...

BTW, what's TTY mode?