Go to Menu > Information > System to note your current model number and firmware version.
host firmware updates for specific 4CH, 8CH, and Facial Recognition models. Shenzhen TVT Digital Technology Co., Ltd Standard Upgrade Procedures TVT DVRs typically use one of two main methods for updates: 1. USB Flash Drive Method (Recommended) : Use a FAT32 formatted USB drive. File Handling : Download the firmware (often a Tvt Dvr Firmware Download Free