1. On your watch, open Settings > About Watch > Software and tap Build Number 7 times to enable Developer Options.
2. In Developer Options, enable ADB Debugging and Wireless Debugging. Note the IP address and port shown.
3. On your Android phone, install the free tool "Easy Fire Tools" or "GeminiMan Wear OS Manager" from Google Play.
4. Connect to your watch's IP, select the downloaded nymphnode.apk, and tap Install.
5. The app will install directly onto your watch face with automatic circular horology scaling!

Simply download nymphnode.apk from this device and tap to install. The app automatically detects circular displays and adjusts screen insets.

Per system security policy, 100% of production and update firmware images are encrypted via AES-128-CBC + HMAC-SHA256 authenticated packaging (using Firmware/tools/firmware_encryptor.py). Plaintext firmware binaries are never broadcast over the air.

This engine allows anglers, guides, and field technicians to wirelessly flash or update firmware onto the NymphNode capsule directly from their smartphone app over Bluetooth Low Energy while streamside.

• Protocol: Dialog/Renesas DA14531 SUOTA Primary Service (0xFEF5).
• Memory Architecture: Dual-Bank SPI Flash partitioning (Bank A & Bank B) with automated CRC rollback protection.
• Status: Active Engineering Directive. Direct in-app BLE flashing is logged in Action_Items_and_Milestones.md for the next development sprint.