This often happens if the download was interrupted or if the file is still zipped. Ensure you have extracted the actual firmware file from the .zip or .rar archive.
Ensure the device is connected to a stable power source (preferably a UPS). A power loss during the "flashing" process can permanently damage the unit. hvt-jmr1040-r3.53 firmware download
This guide provides an overview of what this firmware version offers, how to source it safely, and the steps required to complete the update. What is the HVT-JMR1040-R3.53 Firmware? This often happens if the download was interrupted