Management panicked. The investor review was in 48 hours.

Leo was escorted out. The board went into production as "."

She had the last known working "bk m33 bt v2 pcb" under the microscope.

She noticed a micro-short between the RF shield ground and a test point labeled TP_DBG . That test point was only present on v2—and shouldn’t connect to the antenna path.

The Ghost in the Wireless Coil

The board was small—only 28x35mm—but packed a Cortex-M33 with TrustZone, 512KB flash, and a -96dBm BLE 5.2 radio. It was code-named "" internally.