I just got this phone from a friend. It's the red Upstage that came with the red and black battery cases (the thing you put the phone in). When I put the phone in the black case, the phone shows 2 batteries. When I put the phone in the red case, there is only one battery. I tried charging it but it wont show up. What could be the problem? I asked him about it and he said he doesn't know. He never used the red case.
I guess you should only be using the black case then if thats the one that works. Your friend probably broke the red one - that's why he doesn't use it and sold it to you.
