Copied from YouTube comment:
Hello! It's ClanScorpia from littleBits! Thank you so much for making this video! It's very helpful for the people who really need it :). I was wondering if I had to cut to wires in the middle or if I could cut them closer to the bitSnap to make it shorter?
@ClanScorpia, your YouTube settings prevent me from replying to your comment on YouTube, so I brought our conversation back here.
You're very welcome!
I cut my wire closer to the bitsnap to make it longer. I imagine you would like to follow these steps:
1)cut the wire close to the frayed end
2) remove the old jst connector to prevent crossing wires
3) strip your littleBits wires
4) tin the wires
5) solder them to the solder pads, while keeping position of the 3 colored wires in mind
6) test if it works
7) hot glue solder points and the point where wires join the other jst connector, without inadvertently hot gluing the jst into its socket.
It's actually a fun fix, and I also took the time to hot glue my servo wire where it comes out of the black box. That had frayed also, so I recommend doing that as a preventative measure.
Please post a pic of your fix so I can give <3 ...