Firmware has made battery life better. I have not dealt with a single drop-off in signal or device becoming unresponsive while still being on. This mouse is something that I won but was plagued with the above issues from the day I got it. While I did not reach out to Glorious Support about this, I did ask them directly about their thoughts with performance. While I do not think anyone is wrong here or that this issue was the norm, I knew it would be some time before it was fixed. For the outliers who had this issue, we have a solution.
This is where I wanted the hardware to be when I asked the question before in the O2 Pro AMA
I am now Pro for the Pro. I am more Pro for a Series One Pro 4K/8K with This. Exact. Performance. Please and thank you. 40g
I’m really glad I found this thread… I’ve been having issues with my O2 Pro 1K since I got it near launch. It would randomly spin out and aim at the sky in games, or sometimes just completely disconnect until I turn it off and on again even though the mouse is still on. Even though I tried changing a bunch of settings in Glorious Core, nothing helped. Apparently my automatic updates were turned off, so it never alerted me there was a new version of Core and a new firmware. I was still running firmware 1.0.3.0. I’ve updated both and hopefully it’ll work better now. Fingers crossed!
40g 
