It happened to me once (September 2020), and I opened an ASUS Support case. While I was waiting for an answer, I let discharge the headphones for several hours. Once fully discharged, and connecting again, everything worked again. According to ASUS support, was not an expected problem, but to reopen in case that problem was being reproducible/repeated. No problems anymore regarding to this specific issue since then, I am using it in a daily basis for many hours.
I have now a problem with the microphone, but that's a different story (looks a contact issue).
any fix to this issue?
Happened to me too. No RGB. No sound. Bluetooth also not functioning. Only the red led is light up. My pc detect the device but couldn't hear any sound. Has anyone tried format their windows and see whether it works again?