The restoration process generally involves two parts: repairing the FTDI communication chip and reflashing the PIC18F458 microcontroller. 1. Restore the FTDI Chip
If the device is still non-responsive, the main microcontroller (MCU) likely needs new firmware.
: For stable communication, use FTDI drivers v2.8.30.0 (referenced in the archive name v20830 ) or v2.8.14.0.
The interface should now be recognized with a valid serial number. 2. Reflash the MCU (PIC18F458)
Connect the device to your PC via the ICSP port if using a programmer.
: Attempting to move from version 1.64 to 1.65 (or similar) results in a non-responsive device. Restoration Steps
: You may need an external programmer (like a TL866) if the bootloader is dead. Process :
Select the appropriate binary ( .bin or .hex ) file for your intended firmware version (e.g., v1.39, v1.45, or v1.59). Enable VCC and program the flash memory.
The restoration process generally involves two parts: repairing the FTDI communication chip and reflashing the PIC18F458 microcontroller. 1. Restore the FTDI Chip
If the device is still non-responsive, the main microcontroller (MCU) likely needs new firmware.
: For stable communication, use FTDI drivers v2.8.30.0 (referenced in the archive name v20830 ) or v2.8.14.0. OP-COM_RESTORE_FTDI_to_ORI_v20830.7z
The interface should now be recognized with a valid serial number. 2. Reflash the MCU (PIC18F458)
Connect the device to your PC via the ICSP port if using a programmer. : For stable communication, use FTDI drivers v2
: Attempting to move from version 1.64 to 1.65 (or similar) results in a non-responsive device. Restoration Steps
: You may need an external programmer (like a TL866) if the bootloader is dead. Process : Reflash the MCU (PIC18F458) Connect the device to
Select the appropriate binary ( .bin or .hex ) file for your intended firmware version (e.g., v1.39, v1.45, or v1.59). Enable VCC and program the flash memory.