Sprint phone switch?

So.. I suck at keeping my cell phones unbroken... But I have my brothers old phone from Sprint. Do you think I could have them switch my service from my junk Blackberry to some old phone? They're both sprint but I don't know if things have changed or whatever.

Well the Blackberry is working again after drying all night but I'd still like to know if it's worth keeping this old phone as a back up if if they just can't make it work. I'll call Sprint today to see.

Your brothers old Sprint should be fine as long as its a CDMA phone (no SIM card) with current Sprint service.