Op-com_restore_ftdi_to_ori_v20830.7z -

If your computer sees the device as a "Generic USB Serial" or shows PID_0000 , you must re-program the FTDI chip's EEPROM. : Use a utility like MProg or FT_Prog . Process : Open the tool and scan for devices.

: You may need an external programmer (like a TL866) if the bootloader is dead. Process : OP-COM_RESTORE_FTDI_to_ORI_v20830.7z

: Once restored, never update the software online . Doing so will likely re-brick the device. If your computer sees the device as a

: Use 7-Zip to extract the .7z file; if you encounter "Cannot Open File as Archive" errors, the file may be corrupted and require a repair tool like WinRAR to fix the headers. : You may need an external programmer (like

Connect the device to your PC via the ICSP port if using a programmer.

: For stable communication, use FTDI drivers v2.8.30.0 (referenced in the archive name v20830 ) or v2.8.14.0.

: This restoration method is strictly for interfaces with a genuine Microchip PIC18F458 . Fake or alternative chips (like the PIC18F45K80) may require different firmware files.