I have purchased the MangOh Red WP7700 board found here: WP7700
The board shipped with an AT&T sim card, and according to the MangOh Red site, the sim could come with up to 150MB of included data.
When following the instructions in the getting started page found here, I get a message stating ‘Invalid ICCID’ when attempting step #3.
My question is, is the AT&T sim card that ships with the board sold by digikey supposed to be able to be activated by default, or does a plan need to be purchased? I figured the fact that the board ships with one means it’s ready to be activated, is that indeed true?