via email (ustechsupport@hifocuscctv.com) to obtain the correct firmware file. Prepare USB
Power interruption or corrupted file. Fix: This is a "bricked" state. You will need to perform a recovery:
The screen went black. When it came back, the retroactive log was gone. The AI toggle was grayed out. It was just the old, grainy interface again. And the storefront camera showed nothing but empty floor and the swinging of a chair that hadn’t been moved.
Before starting, ensure you have your DVR's and current firmware version (found under System Info > Version in the DVR menu). Method 1: Updating via the Web Interface (Recommended) V4.02.R11 H.264/H.265 DVR/NVR Firmware Download
Select and choose the correct file from the list. Click Start to begin the process.
This is the most reliable manual method for HiFocus systems. 1. Download the Firmware
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