The BR100 isn’t really dead. It’s just waiting for someone stubborn enough to bring it back.
Here’s an interesting, slightly investigative piece on the Sony UWA-BR100 driver for Windows 10 : The Ghost Driver: Chasing Sony’s UWA-BR100 on Windows 10 sony uwa-br100 driver windows 10
Some hobbyists have succeeded — but only by forcing an old Lenovo Bluetooth driver, editing registry keys, and sacrificing a weekend. The result? A working dongle that still says “Sony” on the side, running on drivers never meant for it. In a world of planned obsolescence, that’s a small, nerdy triumph. The BR100 isn’t really dead
Today, the UWA-BR100 sells for $5 on eBay, often listed as “untested — no drivers available.” It’s become a litmus test: can you resurrect abandoned hardware without official support? editing registry keys