Opcom 1.99 fake

[Andr33iy98]

Hi,
I own this pcb, it can be made downgrade to 1.39 to read corsa C instruments ?
Or should I go for RL or RQ chip? RL can be down to 1.39 ?
https://imgur.com/a/2oc2wje

[Mario6]

Hi.
To change the firmware you need an interface with a real PIC 18F458. Disassemble the casing and check which PCB you really have. In the pictures, only the third interface can change the Firmware. Upload photos of both sides of the PCB here.

[Yhoni]

Hi,
I own this pcb, it can be made downgrade to 1.39 to read corsa C instruments ?
Or should I go for RL or RQ chip? RL can be down to 1.39 ?
https://imgur.com/a/2oc2wje

HI, were you able to read and program the instrument cluster of the Corsa C with your Opcom?

What version of firmware did you use, please?

Thanks.

[Andr33iy98]

1.39 works on corsa c

[Yhoni]

1.39 works on corsa c

Ok friend, and what program and version do yo use, please?.

Thanks.