My mom's phone was dropped in wine as I explained in these threads:

Thread 1

Thread 2

I would like to try a master reset since the phone seems to respond to at least the power off command if I hold it as it boots up, but after searching all morning, I couldn't find the procedure anywhere.

Also, after I master reset it, should I be able to call *228 and have it reprogrammed over the air correctly?

TIA