If your camera has “CH” in the serial number, you are most likely using a “gray market” product. If you have purchased your Hikvision products from an online source or unauthorized distributor, they may not be compatible with the North American region’s firmware and are considered to be “gray market” product. Please be aware that Hikvision products are region-specific and regionally supported. By downloading the firmware from this web page you are agreeing to Hikvision's Software User License Agreement.
