I have the same problem, at noon it works, in the evening it doesn't make any light, I can't plug it in, nor activate the bluetooth.

I've checked the sensor underneath with a phone camera, and it reacts well to the click: the sensor lights up.

I tried with 2 different computers, with usb, with the dongle or with bluetooth... impossible to make it work again.

I've also tried holding down the left, right and middle clicks at the same time to reset it.
No luck.
It's impossible to plug it in via usb, so I can't try to update the drivers.

If anyone has a magic solution (apart from buying a new one) please let me know.

Sorry te hear, also sorry to not bring any decent reply.

I also am getting this issue, while in BT connection it just fell asleep, turned off on itw own still with energy.

I remember it happened to me before, tried the fixes provided on the internet in vain, was waiting for paycheck thinking it died, until like days later it turned on on its own…

Now it is doing it again, and I dont know what t do, all I know, it has still a red light inside somehow still working.

Hoping there is a real thing to do to fix this.

We love to see that Razer hasn’t bothered to chime in or leave any advice whatsoever. 
 

Have had constant issues with my Naga Pro when it goes into hibernate from being idle. When it tries to reconnect it stays a solid dark blue color and won’t connect. The only thing that would fix it was restarting my computer. It does this on every computer I’ve used it on, regardless of clean installs, etc.
 

Then finally one day it went idle and stayed black. Razer support said there was nothing they could do because it was over a year old. 150$ mouse less than 2 years old not working. . Finally came across someone who had the same issue who told me to leave it off the charger until it died all the way, and then recharge it.

i have the exakt same problem with bluetooth it has power it just died and now none of the power on works not even connecting to an other computer. it has also happend one other time when it was new after awile it just worked again it is real wierd