I'm not sure if this is common knowledge but for me it was not. I got my Bionic, (less an activation guide), and the phone wasn't activating. So I remembered you can dial *228 to activate VZW phones. So I did and it told me that the SIM card was not registered or recognized. I couldn't make any kind of phone calls at all.
So I went all night without a phone, get to work and call into VZW. The lady puts me through an automated system so I can accept the "terms and conditions" or whatever so I did that. Then I tell her I can't even get *228 to work and she's like WHAT? She then informs me that dialing *228 from my 4G phone, (although I don't have 4G service in my area), disables to SIM card right then and there. So, yippee I get to take an extra long lunch break and visit with the VZW store people today.