Using microcontroller sockets?
Go to the Microcontroller (socketed) page instead!
Test your controller. Before soldering your controller, you’ll want to flash firmware to it to ensure it works. Desoldering a controller is a lot of work, so test its functionality before soldering it!
You can find the instructions on how to flash your controller on Flashing Firmware.
Orienting your controller. Your controller has a top side and a bottom side. The top will have its chip and most other components on it, while the bottom is usually bare (and will often have a logo or other graphic on it). On Aurora kits, the controller will always face with it its chip facing toward the keyboard PCB, so the controller’s back side is facing toward you.
Use tape to hold the assembly in place
By default the header legs will stick out quite far, so you can cut them shorter using flush cutters.
Hold the leg with one hand while you clip it with the other - you don't want a rogue leg flying into your eyes!