Problem: i have the same cordless rumblepad 2. I have the same problem, I can see the receiver getting the signal, but nothing happens at the configuration screen. I had the original raspberry pi (v1 256 mb ram) and it worked flawlessly with my rumblepad and SNES roms
in checking the log, i see that it is registered
osmc@osmc:~$ cat .emulationstation/es_log.txt
lvl2: EmulationStation – v2.0.1a, built Jan 17 2016 – 19:46:36
lvl2: Creating surface…
lvl2: Created window successfully.
lvl2: Added unconfigured joystick Logitech Logitech Cordless RumblePad 2 (GUID: 030000006d04000019c2000010010000, instance ID: 0, device index: 0).
lvl2: Checking available OpenGL extensions…
lvl2: ARB_texture_non_power_of_two: MISSIN