( The quick version. Follow the link below to update your razer devices. Synapse does NOT update razer devices. )
I like synapse but uhhhh...... I just found out all of my Razer devices had original Firmware so I was running into issues with my Kracken V2 Pros I just got them a month ago.
I said to myself " oh great now I see why people are wary of razer" So I refuse to return them they are comfy with my hearing aid a rare feat and wireless so I said okay synapse is uninstalled, then redownloaded the latest ver. still no fix so, okay ill see if I can manually flash the firmware.... well guess what... Stock firmware and so I manually update the headphones and poof. Problem solved along with other fixes and improved audio quality according to patch notes. So I dig deeper. It turns out EVERYSINGLE device has very very old firmware. I just got done updating and I am not joking, 8 razer devices. So my request is please please please for the sake of your own company at minimum have razer synapse flag a device for old firmware once per month and run a check.
I could only imagine how many people ( I know a few friends ) who gave up on razer over something that a firmware patch could fix.
Side note my favorite FPS mouse the Viper Mini feels way way better with the latest firmware. So thank you for patching my $20 mouse I love it.
Link for update page: Software and Firmware Updates for Razer Peripherals