Locate the terminals that need to be removed.

Ports: 2 USB 3.0 1, USB-Type C, HDMI 4-in-1 card reader (SD, SDHC, SDXC, MMC), RJ-45 LAN

Clean the terminals with isopropyl alcohol and an old tooth brush.

Follow iFixit's guide for soldering instructions.

Be careful when using a soldering and de-soldering device as it is very hot.