If you own a with a Sunplus chip, you usually cannot use any other loader tool (e.g., PhoenixUSBPro, RKDevTool, or Amlogic USB Burning Tool) — only the official Sunplus Loader Tool (or a close OEM rebrand) works.
: A female-to-female DB9 cable or a USB-to-RS232 adapter depending on your PC and receiver ports. The Correct Loader sunplus loader tool exclusive
: It is the go-to solution for "unbricking" receivers that are stuck on a "red light" or "boot" screen due to corrupted software or failed updates. If you own a with a Sunplus chip,
This indicates the loader cannot access the designated COM port. Ensure no other software (like Arduino IDE or another terminal tool) is occupying the port. Verify the USB adapter is firmly connected to the PC. Progress Bar Stays at 0% (No Response) This indicates the loader cannot access the designated
Connect the other end of the cable to the receiver's RS232/upgrade port.
Most modern computers lack a native DB9 serial port. A USB-to-TTL adapter (like the CH340, PL2303, or FTDI chipsets) is required to bridge your PC and the receiver.