Original post by: oldturkey03 ,
cathrynkeller, the first step I recommend is that you stop using it all together for now. The more you try to start it and to use it, the more you can damage. You definitely want to clean it properly. Use [guide|5825|this guide] to get it cleaned. It is written for a 3G but applies to your phone as well. Next thing to do is to '''replace the battery''' after that, reassemble and re-evaluate. Hope this helps, good luck.