Hello! I've got a few Samsung A640's that I am trying to flash to cricket. When I open up CDMA and try to read these phones, a grey screen pops up on the phone saying something like:

Test Mode <A>

Suspend

FM_RX_FLAT
[ch]0991 000 (then the zeros flash and turn into '~' symbol)

and then the phone power cycles.

Is this a firmware issue?