n00b here. I have an iphone 4 and recently jailbroke to 4.2.1 using greenposi0n, ever since then I've had horrible battery life. My battery goes from 100% to 50% in just a couple of hours. I use bitesms often but with 4.1 the battery was amazing. Also the last few days I have had really bad service issues I have never had before. I cannot make a call if my life depended on it. This happens at home where I use to have the best service. When I place a call I hear no rings, just silence. Its extremely frustrating. Also the phone has been overheating a lot! I feel like its gonna explode in my hand it gets so hot. Any suggestions would be awesome. Thanks in advance.