If an update fails and the screen stays black, you may need to use a recovery tool via a PC connection. 🛰️ Technical Specifications Overview Specification Compatibility DVB-S / DVB-S2 Input Frequency 950 ~ 2150MHz Input Level -65 ~ -25dBm Interface USB 2.0 for Data/Power Display LCD with backlight
Why bother downloading the latest version? Here is what a software refresh does for your meter:
Plug the USB drive into the port on the side of the SF-720.
The download might be corrupted. Try redownloading the file and ensuring the file size matches the source.