How can I repair the outlet to where I plug in my charger

Hi,

The phone’s USB charge port (supplier example only) is soldered directly onto the board.

You will need smd soldering skills and tools to do the repair.

Here’s a video that shows how to do it.

The parts supplier linked above was only to show you what the part looked like and what it may cost. There are other suppliers online that may suit you better. Just search for Galaxy J7 charge port part to get results.

Here are the ifixit Samsung Galaxy J7 guides which may also help with the dis-assembly of the phone.

If you find doing all this yourself is too daunting a task, contact a reputable, professional mobile phone repair service and ask for a quote