Ensure the cable is connected and drivers are installed. Change the COM port number in the app.
: Typically a DB9 female-to-female cable or a 3-pin mini-jack serial cable depending on your receiver's port layout. Sunplus Loader Latest Version Download -UPD-
Fix: The loader isn't receiving data from the box. Ensure the receiver is powered off before clicking Start, and only powered on after . If it still fails, your RS232 cable pinout configuration (TX/RX lines) might be incorrect or mismatched. Ensure the cable is connected and drivers are installed