Chosen Solution

I was reparing my ipod with iflash dual and then THIS (http://imgur.com/a/sEEDF) happend…

I’m trying to turn on it but it has no sign. I connect it with computer and it says “Charging. Please wait”, that’s all. What can i do now???

Yup, that is your battery connector. For the next time keep in mind that the best way of opening the battery connector is by using a paperclip bend into an L-shape and then gently pulling straight up. Any other way just breaks the connector of the board. Since the connector broke of the logic board, there are only two solutions. One is to get another connector, if yours has broken contacts. It is available at places like this. Once you determined the condition of your connector, have somebody knowledgeable with SMD components solder it on. Check the traces on the board, sometimes they do tear off as well. The only other way is to replace the logic board. Here is the guide for the logic board removal