I've seen this happen before... It has something to do with the features on your account... (Actually this happened to me) So i looked at my account online (through mycricket.com) I saw quite a few features that show up as (Unknown) (sorry I can't upload any more attachments)
I wrote down the list of features that were on my account and how many unknowns I had. I then compared my list to the list on my account and found which feature codes weren't listed (I assumed those were the unknowns) I then deleted those feature codes from my account and it loaded them back up with data backup...
It verys from phone to phone.
Take LG for example you would use the apporite DLL with LG Downloader and under the brew tab. You need to find out what other nurabers you can use from other cricket phones.