Flash the Tuya ZS3L (EFR32MG21) Zigbee NCP inside a WBRG1-based closed-firmware smart-home gateway into an open-source coordinator, entirely over WiFi via the OpenBeken bridge — no SWD, no soldering.
ember reverse-engineering home-assistant coordinator zigbee ncp xmodem silabs zha bellows tuya efr32 zigbee2mqtt ezsp efr32mg21 zs3l openbeken wbrg1 rtl8720d gecko-bootloader
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Updated
Jul 28, 2026 - Python