Posts: 278 +173
I have been given a smartphone but I'm not sure if it is in working order. It starts to boot up but doesn't get past the instruction to insert a sim card. I'm not bothered about having one but I thought it might be useful in an emergency or something. Since I'm not that enthusiastic about the whole idea I don't want to sign up for a contract until I know the phone itself is working. If I borrow a sim card from someone else's phone to try it in mine will that cause any loss of data or configuration on the other person's phone?