The 3w6 is a low profile, split ortholinear keyboard with 36 keys.
To reach the bootloader, connect the board to the PC and push the reset button on left half.
Make examples for this keyboard (after setting up your build environment):
make 3w6/rev1:default
See the build environment setup and the make instructions for more information. Brand new to QMK? Start with our Complete Newbs Guide.