I have the first version of the Zowie EC2 (the blue edition) and about a week ago it started going on and off when playing. I have noted that it generally happens when I swipe the mouse at speed, and I don't think there's that device plug/unplug sound that Windows makes. This is probably a cable issue, or maybe a cable joint rather than the cable itself?

Anyway, since RMA is not worth the expenses for me, I wanted to open the mouse and see what I can do. I removed the lower mouse skate and apart from 2 regular screws there also seems to be another in the middle with a triangular head and I don't know what to do about it. I have a screwdriver with a similar bit but it's a little bigger and won't help.

Has anyone else here disassembled an EC2? If yes, how did you do it?