the screen on my sony ericsson phone went black. so i have to mail it in and they said it will take about 3 weeks to fix. They said my only option is to use a loaner phone but i have to pay 50 dollars for that and i don't have any extra money with the holidays coming up. My friend has an old phone he doesn't use anymore, and it's from different company. Would i be able to put my sim card in the phone and would it still work?