Razer Blackwidow Chroma 2014 – Disassembly and Repair. – S-Config
Accessing LEDs and Switches in Razer Blackwidow Ultimate 2013 - iFixit Repair Guide
Black Widow V3 full size disassembly. There's 15 screws underneath the key caps that you have to remove in order to separate the bottom part from the top. Gonna add some foam