DARK OPS PRO DCL NANO · Firmware

Manufacturer publication date 2026-08-31 · V3.02 (m22111000)

Only 2026 BTC-6DCLN units with serial numbers ending 266DCLN qualify. This addresses pixel rows in Ultra 46MP Trail Cam images viewed on Windows. Matching the model code alone is insufficient.

Install fresh alkaline AA batteries before starting. Do not switch off or remove batteries or the SD card during installation. Power interruption can leave the camera unusable and require service.

1. Copy BTC6DCLN.bin onto an empty SD card without opening or renaming it.
2. Insert the card with power off, then turn on.
3. Before a capture, use M → up → SW Upgrade.
4. Follow the attached screen sequence, change Cancel to OK and start.
5. After about 30 seconds and return to the home screen, restore date, time and custom settings.