I've recently buyed those and the first time I paired them with my phone they worked perfectly. After I've downloaded the Razer Hammerhead True Wireless app and connected my earbuds to get the new firmware, the problem started. I've updated the firmware and after this my earbuds simply refuse to connect to the app again, and when I try to connect them to a bluetooth device (have tried many), only one headphone is connecting (right or left). I've tried the recommendations on the product FAQ but it doesn't seem to work though. Does anyone have any idea of how to fix it??