No. Video data on the hard drive remains intact. However, camera configurations (Motion detection zones, network IPs, passwords) may reset. Always backup your configuration first (System > Export Config).
Generally, yes, but not always. TVT adds security patches that prevent rollbacks. If you downgrade, you may lose newer features and risk P2P connection failure.
Here are the legitimate, safe sources for free firmware. Tvt Dvr Firmware Download Free
Updating your TVT DVR firmware is a simple process that requires a few basic steps:
. A prompt may warn you that the system will load default settings after the update; click to proceed. Completion Always backup your configuration first (System > Export
Many TVT DVRs use Hikvision chipsets.
. Take a clear photo or screenshot of this screen (which shows the model and current version) and email it to your regional TVT technical support team. Regional Partner Portals : Some authorized distributors and partners, such as Dicker Data Security Camera King If you downgrade, you may lose newer features
Reply with your DVR's exact model number and current firmware version (found in System Info), and I can help locate the correct free download source.