"SMS Error Cause Code 97 Class 2."
Explanation: This is an error when attempting to send SMS messages. Usually the problem is with the texting
plan.. or lack of a texting plan on your account.. When signing up, if they ask you to call in to an automated number
to activate your plan.. please do it.. I've heard that people didn't call into the automated activation line and
months later, SMS's stopped working and they started getting this error.. Then they needed to call the cellular
providers tech support...
Also.. if you have root'd or unlocked or played with your smartphone enough (and therefore can't/don't get updates form
your cellular provider), I've seen the provider make chances.. push out new software which with a root'd/unlocked phone
you won't get.. and then SMS's stop working..