A deep review of the ums512 firmware package reveals the following critical partitions and components:

Not many—just a scatter of warnings across distant IP ranges. A vending machine in a coastal town reported a telemetry spike. A bus shelter in the suburbs showed anomalous traffic. A café’s point-of-sale bounced for a heartbeat. The messages were tiny, incidental. Lena trained herself to ignore noise. But the alerts arrived with a cadence she now knew by heart: three seconds, then six, then three again. A pattern. She opened the raw logs.

: AudioWork (Model P23S), Joying, and various TS10-based units How to Update Your Firmware