I got the MyTouch 4G shortly after it first came out. I loved that phone, but then after moving to Europe I found myself needing a phone for the service here so I sold mine on Ebay. My parents both got them as well and now that THEY've moved on to other phones, I've inherited them.
1. I rooted these phones about 2 years ago, but I have no idea whether they're SIM unlocked. Is there a way that I can find out?
2. If they're not SIM unlocked, is there some way I can reroot them to be?