Lots of flux and a way to inspect it. There's tons of cheap USB microscopes out there now that you can use for soldering. If you put a tiny bit of flux undernea

Lots of flux and a way to inspect it. There's tons of cheap USB microscopes out there now that you can use for soldering. If you put a tiny bit of flux underneath the connector, heat it up, and let it sit you'll make it tacky and can lay the connector on it. Tape is also usable. Just get the ends and then remove it to do the full thing.