So you went to change your battery in your iPhone 4, or you opened it up to change out the housing, and you made a big mistake and used to much force. The connector comes up with the battery, you rip out one or two of the solder pads, then you realized that you need to put this down and give it to a professional.
Here are the repair pics, during and done.
The solder pad was repaired, and trace recovered. Even if completely torn out, I believe this can be fixed as the circuitry is nearby and not very difficult to do if you know what you're doing. I have ordered a few of these connectors, and will be offering this service very soon. Questions, please email me! Thanks!