OCflash Downgrade OPCOM firmware if was upgraded from 2011 2012 official software

**vladdislav** · 12th March, 2021, 05:41 PM

Hello,i need Opcom firmwere 1.39 and i will downgrade my interface.

**zwkrz** · 27th April, 2021, 06:31 PM

Hello,
Does anyone know, if I can downgrade my OPCOM China-Clone 08/2010 v.1.59 to v.1.39, using manocao's files from post #1?

**Mario6** · 27th April, 2021, 06:54 PM

Originally Posted by zwkrz

Hello,
Does anyone know, if I can downgrade my OPCOM China-Clone 08/2010 v.1.59 to v.1.39, using manocao's files from post #1?

You can do this if you have Opcom with real PIC 18F458.
Disassemble the casing and check what PCB you have. ("OPCOM", "Opcom NEW", "OPCOM.5 2007-12-10", OPCOM V5 / V6 2013-6-2 ".
If there are D5 and C22 elements on the PCB, you have a false PIC 18F458 and by changing FW you will kill cable

**zwkrz** · 27th April, 2021, 07:13 PM

Originally Posted by Mario6

You can do this if you have Opcom with real PIC 18F458.
Disassemble the casing and check what PCB you have. ("OPCOM", "Opcom NEW", "OPCOM.5 2007-12-10", OPCOM V5 / V6 2013-6-2 ".
If there are D5 and C22 elements on the PCB, you have a false PIC 18F458 and by changing FW you will kill cable

Thank You for fast answer. I've checked and on my PCB is sign "OPCOM_NEW" and PIC 18F458 - I/PT. Does mean I can downgrade?

**zwkrz** · 27th April, 2021, 07:56 PM

Originally Posted by zwkrz

Thank You for fast answer. I've checked and on my PCB is sign "OPCOM_NEW" and PIC 18F458 - I/PT. Does mean I can downgrade?

... and my PCB

**Mario6** · 28th April, 2021, 08:39 AM

Originally Posted by zwkrz

... and my PCB

This PCB looks fine. I think it has a real PIC 18F458 and at 99% you can change the FW. Most often the "Opcom New" and "Opcom.5 2007-12-10" PCBs have a real PIC.
If you don't try to change FW, you won't know 100%.

**zwkrz** · 28th April, 2021, 08:45 PM

I tried and success

Have v.1.39 Thank You.

**zwkrz** · 29th April, 2021, 06:27 PM

... and now I'm looking for software for FW v1.39.
Op-com 100219 is the version suitable for reading the PIN from immo?
Opel Astra G 2005

**Mario6** · 29th April, 2021, 08:08 PM

Originally Posted by zwkrz

... and now I'm looking for software for FW v1.39.
Op-com 100219 is the version suitable for reading the PIN from immo?
Opel Astra G 2005

I don't think you can read carpass on Opel Astra G using Opcom 100219 (08 2010 china clone). But if you want, I can send you a link to 082010 multi lenguage SW.

**zwkrz** · 30th April, 2021, 07:52 AM

Originally Posted by Mario6

But if you want, I can send you a link to 082010 multi lenguage SW.

Yes, please send me a link. I'll try ...

**Mario6** · 30th April, 2021, 08:52 AM

Originally Posted by zwkrz

Yes, please send me a link. I'll try ...

Link to the Opcom 082010 China (Pl, EN, DE, RO) 32/64bit

**zwkrz** · 30th April, 2021, 09:52 AM

Originally Posted by Mario6

Link to the Opcom 082010 China (Pl, EN, DE, RO) 32/64bit

Thank's a lot. Today or morning I try

**zwkrz** · 30th April, 2021, 09:00 PM

You're right. For my car Opel Astra G 2005 there isn't option recovery PIN from immo

I've given up.

**Mario6** · 30th April, 2021, 10:48 PM

Originally Posted by zwkrz

You're right. For my car Opel Astra G 2005 there isn't option recovery PIN from immo

I've given up.

I think "Carprog" via OBD II port should solve your problem.

**albert1973** · 1st June, 2021, 08:49 AM

are the HEX files incuded in the zip file?
I run firmware 1.99 i can see some options, but not as many, my mate can see with firmware 1.58.

I can download the firmwares, but not the zipfile OCflash.