I am sure this was posted earlier, but I seem to not be able to enter the SIM chip phone number into the 7100t. Is there something I'm missing. Myuser has Blackberry 4.0 software on his handheld.

what do you mean? Open the back take the battery out wait foe a minut then puth the batter back in this should refrest the memory your sim number should be updated then along with the other vital stuff

Is it displaying My Number: Unknown on the Phone ribbon? If so, see this link...
http://www.blackberry.com/knowledgec...menu&vernum=10