Below we will explain both these methods. There are three methods to upgrade the firmware, one is using an upgrade tool on a computer, the other one is done directly on the DVR using a USB drive, or upgrading remotely. Usually, the inscription on the unit just reads “Digital Video Recorder”, “H.264 DVR”, “Network Video Recorder”, “H.265 NVR”, or the seller will place their own brand name on it.Įither way, all of them are manufactured from the same company and use the same type of chipset such as the HiSilicon models Hi3520D Hi3520A, Hi3521, Hi3521A, Hi3531, Hi3531A, Hi3535, Hi3736, Hi3537, Hi3538. Well, these types of DVRs are manufactured in China based on HiSilicon chipset and are sold all over the world. So, if you got an H.264 DVR or an H.265 NVR (the generic OEM ones) and you need to update your device to the latest firmware, then use this free tool to easily and securely upgrade it. The tool is installed on the computer and then it communicates with the DVR via the local network. The H.264 DVR firmware upgrade tool allows you to update the firmware on a generic H.264 DVR using your computer/laptop.
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