Resolves bugs causing unexpected reboots or system freezes.
The V4.02.r11 firmware update brings several improvements and enhancements to your DVR/NVR device: V4.02.r11 H.264 H.265 Dvr Nvr Firmware Download
Download the firmware file and unzip it if necessary (some downloads are compressed archives). Copy the firmware file (often with a extension) to the root directory of a FAT32-formatted USB flash drive Resolves bugs causing unexpected reboots or system freezes
Before downloading, you must find your 8-digit to ensure compatibility. Using the wrong firmware can permanently "brick" your device. Menu Path: Navigate to Main Menu > System Info > Version . Using the wrong firmware can permanently "brick" your device
Navigate to > Advanced > Version (or System > Info > Version ). Take a photo or note down the following parameters:
This printed hardware model maps directly to the required firmware image. Step 2: Where to Download V4.02.r11 Firmware
Plug the USB drive into the USB port of the NVR/DVR.