oh, if you guys are going to use the PCB file, use the one from the tutorial, I caught 2 small mistakes on this one i'm working on. and I've corrected it on those files,
if not the trace needs to cut in 2 places:
1. key 7's LED should not be connected to anything on the topside, that small trace on the left LED hole should be severed.
2. key Y, the left hold of the LED should only be connected to the trace above it, sever the trace connecting downwards