DS-2TD2637-35/QY. DS-2TD4228T-10/W. For better user experience, we highly recommend you to update your device to the latest firmware. You can search for the firmware by the product model name on the page. How to Upgrade Firmware on Hikvision HiLook Hi Look DVR NVR Easy Simple Guide for Latest Firm ware. DVR used is Hikvisions HiLook DVR-204U-K1 latest 2021 firmware - similar models in the range 1. Batch update tool. By using this tool you can update the firmware of more than one device at the same time. 2. Trivial File Transfer Protocol (TFTP) tool. The second one is TFTP tool, this is mainly used when we want to flash the IP devices. Trivial File Transfer Protocol ( TFTP) is old technology and easy to use. Hello my dear Friend, Welcome to TurboHD X Youtube Channel!!!In this video, I will guide you on 5 ways to upgrade firmware Hikvision devices.- Way 1: Upgrade Download Hikvision software including iVMS-4200, Hik-Connect, and more. Firmware For better user experience, we highly recommend you to update your device to the latest firmware asap. There are 3 ways to update a firmware on any Hikvision NVR and DVR, for both of which the instruction is identical: IVMS-4200. All these tools are free to use and can be downloaded here for IVMS-4200 and here for Batch from the Hikvision website. Now let's start off from the option #1 - the web interface. Step 1: Preparing for the Upgrade. Before you begin, make sure you have the following information and files ready: Your HIKVision DVR's IP address (e.g., 10.20.30.1). The username and password for accessing your DVR's web interface. The latest firmware file in DAV format (e.g., digicap.dav ). TvrU.