I'm looking to repair the wobbly micro-usb port on my Fii0 E10k DAC

I'd like a longer title but it doesn't appear to be allowed.

So i'm looking to repair my USB DAC because it does not receive power unless the USB port is pushed in a certain direction. So I'm thinking that the solder points have broken.

I have taken it apart, however looking at the back and wobbling the connection I don't see any movement, so I *think* that the solder between the port and the connection point is whats broken, but due to other things on the PCB I can't get a good look (and it doesn't wobble much, theres 2 connections holding it in place so the other must still be good, probably wobbles maybe 0.5mm either way, but apparently thats enough to cause a disconnect from the pins). It could also be a pad, i'm not 100% sure.

So keeping in mind that I'm a complete begginer, and my limited supplies (I haven't ever soldered anything before, I only have a soldering station and some solder, no flux or any other equipment) what should I try? Should I just stick a soldering iron on the presumably broken joint and get it to hopefully re-solidify in the right way for it to fix my USB port and maintain contact with the pins? I have a small budget for this, $50 AUD if I need to get more supplies, any more then that and i'd rather just get a new DAC as it was just a bit over 100 AUD.