I have an unlocked v195s. I used my AT&T SIM on it. It worked great except every time I powered on I got a text message "453 Invalid Number". After researching on the internet, I figured out it is the T-mobile MyFaves program. So with MotoMidMan I deleted MyFaves corelet.
Unfortunately, now it does not recoqnize my AT&T SIM any more. It keeps saying "Insert SIM".
What do I need to do to recover from this problem? Do I need to reflash the phone? I want to use the phone with my AT&T SIM but without the 453 error.