The CH341A USB Programmer is the most affordable and widely available tool for this task. Professional options like the RT809F or RT809H also work exceptionally well.
: Connect the receiver to your PC's COM port (use a USB-to-RS232 adapter if needed). Configure Loader Open the loader software and select the correct Choose a destination path on your PC to save the in the software. the receiver from the back switch or plug it in. mm3-su1506g-dsz-v1.0 dump file
If the receiver is stuck on a "Load" or "Red Light" screen, you must use a PC and an RS232 cable. Required Tools RS232 Cable The CH341A USB Programmer is the most affordable