I'm so annoyed right now at my Ace. Since I got it 2 months ago it's been acting up, saying I have no service ("emergency calls only"). I switched to 2G and still nothing. I've taken out the battery, the sim, moved around the house so that I have a great signal, and still nothing. I've searched for answers elsewhere and I really don't want to restore my phone to its factory settings. Someone help, please? It's a model GT-S5830i if that helps.