Wilde_Oscar, the firmware link can be found under a link in the second message on p1 of the thread.

Thanks Terence, I did exactly as you indicated and it worked, I updated the firmware and could pair my headset and finish the setup. It really looks like a firmware version problem. I am glad I found your post!

Hi TerenceEden, I have the same problem, RMA returned device, can't pair to my Iphone to set it up, so nothing works. I am going to try the PC/sideload update you describe. I have a Win10 PC and an Iphone, do I need the ADB app? I am not connecting t...