Ever since I updated Unleash RGB from V 1.0.5 to V1.0.7/8 (but more so, the firmware that comes with), my mouse feels fickle. It seems to do micro lags around the desktop, and now it won't register every left click. It does if I click firmly, but I don't trend to do that. Last night while playing AoE2, I can't tell you how many times I thought I selected what building to build, only to have to drag my mouse back to the build menu and select again more intently. It also seems to have started drag-clicking sometimes. That actually may be why I wasn't able to select the building. I heard the noise from clicking the button, but the selection doesn't complete because the mouse moves off of the button before the unclick event fires.
 
How do I install the firmware that came with Unleash RGB v1.0.5?

I installed 1.0.5, but it did not do anything with the firmware. I can try again, but have doubts it will yield anything different. I suppose I could try the factory reset option. I just don't want to spend the time to set all the profiles back just yet.

I uninstalled Unleash RGB. Deleted all the files for it in appdata (both roaming and local). Reinstalled Unleash RGB 1.0.5. It popped up about 5 identical messages about the update to 1.0.8. It did not install any firmware. Says firmware version 1.73.