Thank you, thank you, thank you bpiphany! 

That was my first soldering experience and what a fun it was!  My first electronics experience even!  
Anyway, finally I have finished soldering my first Frosty Flake.  It was not perfect, I had to resolder few things a few times, but now all keys are go! 
I still have one problem though and I have no idea where the bug could be.  All leds are always on.   

I have red leds, and I have used 510Ω resistors.  I've inspected original CM QFR and it also has 510Ω.  Again, all keys work; Caps Lock functions fine, the led just stays on regardless.  I read 3.3V on the led pins.  I've probed all resistors on the Flake and they show the right values.  Being a total electronics nub, I just don't know where to look further.  Any advice?