Document Version: V1.3
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4.7.3 Device Upgrade
Navigate to Maintenance > Device Upgrade.
The firmware upgrade function enables the NVR to get new or more stable performance. The NVR
only supports Local Upgrade for now.
- To avoid damage to the NVR, use the correct upgrade file. Generally, the firmware
upgrade file is suffixed with .bin.
- During upgrading, do not directly cut off the power supply of the NVR; it may cause
upgrade failure or NVR damage.
Method 1
It is applicable for the NVR that cannot be connected to the mouse and the USB storage device at
the same time.
Step 1 Visit www.tendacn.com to download the latest upgrade firmware of the corresponding
camera model, and unzip it to the root directory of the USB device.
Step 2 Save the upgrade file to the root directory of the USB storage device.
The NVR can recognize USB storage devices formatted as FAT32, exFAT and NTFS.
Step 3 Log in to the GUI of the NVR to upgrade firmware.
1. Navigate to Maintenance > Device Upgrade, and click Local Upgrade.
2. Unplug the mouse and connect the USB storage device to the USB port of the NVR within
1 minute.
The system will automatically verify and select the latest version upgrade file in the USB
storage device that fits the current NVR model to upgrade.
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