OPCOM repair, fake pic?

**gia** · 14th July, 2021, 09:34 AM

Good morning
I have this opcpm which never worked. reading on the forum I see that it can be repaired.
Initially with recognized the interface, it gave me the error. Hardware not connected to the car.
Then through OCFLASH I loaded the firmware 1.39. The interface is now recognized. The hardware test says passed successfully.
When I try to make a diagnosis it cannot communicate with the ECU. He makes several attempts and then fails. This ecu does not communicate.
I have tried different versions of software, both opcom and vaux-com, but still the same error. Is there any way to fix it?

**gia** · 14th July, 2021, 09:37 AM

This my interface

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**Mario6** · 14th July, 2021, 04:06 PM

Just buy a new one with a real PIC 18F458.

**gia** · 14th July, 2021, 08:15 PM

can you confirm that this is a micro fake? i am afraid to buy another fake. In the title of this opcom, it says it's a real pic18f458

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**Mario6** · 14th July, 2021, 09:17 PM

Hi.
I have Opcom from the first link "Opcom New" works with Fantomels SW. Second from AutoKcan is Opcom V5, you can convert it to work with CHCAN line.

**gia** · 18th July, 2021, 09:04 PM

quindi non puoi farlo funzionare che ho? Non volevo comprarne un altro. anche perché me l'hanno venduto con pic18f458 originale

**Mario6** · 19th July, 2021, 08:59 AM

Originally Posted by gia

quindi non puoi farlo funzionare che ho? Non volevo comprarne un altro. anche perché me l'hanno venduto con pic18f458 originale

No .
You would have to replace the fake PIC with a real one, remove elements D5 and c22 and solder the extra wires. Then program a new PIC.

**paulthejoker** · 22nd July, 2021, 08:31 PM

i have this opcom with chip 18f46k80 which i believe is fake ... right? what could i do to make it functional? could you sleep the procedure what to do exactly? i would like to use it for an opel meriva B year 2011 and then which firmware and software to use?

**Mario6** · 22nd July, 2021, 08:55 PM

Hi.
Everything looks like a good "Opcom New" without the D5 and C22 but the PIC is not 18F458. Depending on what the seller put in the product description: he is honest or he forgot to polish the original text on the PIC.
I think it's better to buy a second one with a real PIC than to rewrite and program. But that's just my opinion.

**paulthejoker** · 22nd July, 2021, 10:25 PM

I already have another one ... clone with pic18f ... everything works on opel meriva B year 2011 except the mesauring block (I'm trying to find the solution) and I wanted to repair this too to take advantage of all 2

**Mario6** · 23rd July, 2021, 08:10 AM

What Opcom software are you using?
Try one of the SW from Fantomel.

**paulthejoker** · 23rd July, 2021, 12:52 PM

I use opcom 1.59 with software 12309a + 131223d given by the seller but on opel meriva B year 2011 ... it works but it does not work mesauring blocks and programming .. I try the fantomel files and I hope to solve ... I do not want to modify opcom to revision C