Last week, I found a nice friend shared the latest Op-com FW 1.64 on the forum. I will write the processes here, wish it helpful.
Please attention that I can't take responsibility, all manipulations with the device you are doing at your own risk!
You can download Opcom OP-Com FW 1.64 here:
1. Please check your chip, it must be a [PIC18F458]. If it is OP-COM chip, it can't be reflashed.
2. 1) Unzip [VAUX-COM_120309a + 131223d_GB + OcFlash China] file to desktop.
2)Run the program [VAUXCOM.exe] to verify the correct installation of the
4)Click Test interface.
If the interface appear below, the driver installed properly.
3. You should download the firmware and run the program [OCFlash.exe]
4. 1)Specify the path to the [FW 1.64.hex]
2)Run the Test interface again and check that the OP-Com updated to version 1.64
3)You can now use the program [VAUXCOM.exe]
5. Car model until 2015