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

**vitality34** · 6th October, 2018, 11:36 PM

Is the 1.39 fw able to read the security code from an astra h?

**fany** · 17th October, 2018, 09:44 AM

how can I upgrade to the up-com interface from 1.45 to 1.39?

**Sirius83** · 7th May, 2019, 07:44 AM

Hi to all! Please help me, I need firmware 1.95 for opcom. Thanks!

**tika972** · 29th May, 2019, 12:56 AM

hello guys,
i drive opel corsa C 1.2 year 2003 and i would like to get the holy grail v1.39 . i bought op-com 2012 v1.45 but the real version is v1.99. I'm trying to downgrade little by little with ocflash, i have succeeded to downgrade v1.59. but v1.59 to v1.45 it doesn't work, this message appears "bootlaoder did not respond...either killed interface, empty pic or new protection". is it FTDI problem ? any suggestion or idea ? should I buy a op-com 2009 v1.45 for downgrading it and get the King of Kings v1.39?
The Last of the Mohicans

**manocao** · 29th May, 2019, 06:24 AM

Firmware 1.39 is inside the .zip in the 1st post

**haxiboy** · 8th June, 2019, 12:54 PM

I hope this solves my problem

**Tom6609** · 20th July, 2019, 03:55 PM

Hello every one!

I would like download 2 files (OCFlash.zip, Firmwarefiles.rar FW 1.33; 1.39; 1.41; 1.43; 1.44; 1.45; 1.59 but I cannot.
Would send those me by mail? xxxxxxxxxxxxxxx
Thank you for your help!

**XtRYaM5Pt** · 31st August, 2019, 04:54 PM

Hello everyone,
I am new on here and looking to get some help on my OP-com device. I just have purchased a device where the firmware version is V1.70 (able to be upgraded and downgraded) and needing some help as I have flashed to V1.59 but now wish to flash it back to V1.70.
Since at the "Firmwarefiles" folder the higher version is 1.59, how can I get the 1.70 version back on my device ?
Any help would be much appreciated

**Mario6** · 1st September, 2019, 12:24 PM

Chinese OP COM works with OP COM CHINA 082010 and fake VauxCom 2012, 2014 and 2016. To work with Opcom 082010 you need FW 1.39 and for Vauxcom 1.45. The latest original FW is 1.66. The rest 1.70, 1.95, 1 ..... are Chinese marketing tricks. But if you really need 1.70 then you have it here.

**XtRYaM5Pt** · 2nd September, 2019, 11:26 AM

Originally Posted by Mario6

Chinese OP COM works with OP COM CHINA 082010 and fake VauxCom 2012, 2014 and 2016. To work with Opcom 082010 you need FW 1.39 and for Vauxcom 1.45. The latest original FW is 1.66. The rest 1.70, 1.95, 1 ..... are Chinese marketing tricks. But if you really need 1.70 then you have it here.

Hi Mario6

Really appreciate for proving me the file ! Now I have been able to flash it back to 1.70

As far as I read over several pages and stuff posted on internet, I read somewhere the latest original version of 1.66 being incompatible and may damage the Chinese clone devices, like mine is. Do you know if this is true ? And if I flash the unit to a version anywhere above of 1.70 ( 1.78 , 1.95 or 1.99 ), does it give any advantadge to me or there is no difference at all ?

Cheers,
Ed

**Mario6** · 2nd September, 2019, 08:41 PM

Hi.
Since you were able to update FW back to 1.70 it means that you have a real PIC 18F458. I tested FW 1.39, 1.45, 1.59, 1.60, 1.64, 1.66, 1.70 and unfortunately I did not notice the difference in the operation of fake SW OP COM 082010 nor Vauxcom 2012, 2014 and 2016. Fw does not matter. HW and SW is important. I tested fake Vauxcom 2016 on Insignia 2010 2.0 diesel 163 PS and showed / reset errors, showed engine measured value blocks and something else but I don't remember. (I don't have Opel now)
I also tested HQ Clone. Works well with the latest OP COM 170823C EN (2018) and OP COM 160115a PL. (2016)

**XtRYaM5Pt** · 3rd September, 2019, 11:23 PM

Thanks again for clarifing that to me Mario6.

Yeah I purchased a clone from the Aliexpress where seller told me firmware was able to be updated / downgraded, and looks like it is in fact a real PIC chipset, otherwise I think it would be unusable after trying to flash firmware.

As far as I read elsewhere, a real OP-COM has an professional version where it provides even more options, and software does not work at all on the standard / HQ clones, right ?

I actually purchased it to connect into my 07 Saab 1.9 TiD 150 PS, where I did install all four injectors from the TTiD model after remapping ECU. Basically I would like to code those injectors (9 digit number) at ECU but I am getting an "EEPROM writing error message", so I believe it is due to ECU does not accept any kind of injectors beyond the original ones. I have tried to do a small simulation and put an 9 digit number from an original injector I found elsewhere at the internet, and was able to write into the ECU using my Op-com clone. I think it is working good but I found several options only exclusive for OPEL's and Saab's are more likely to work with a different equipment like Tech 2 probably ?
Either way, I appreciate for your help on this again

Cheers

**Mario6** · 4th September, 2019, 07:24 PM

That's cool. Tech 2 has more options than ori OP COM. But if I'm well aware, clone works well until 2014. New OPEL cars can only be programmed online. Good luck.

https://www.aliexpress.com/item/3292...chweb201603_52

**Winter49** · 5th September, 2019, 09:54 PM

Hello,

is it possible to upgrade A PCB 5 to Hex v1.99?

BR

**Mario6** · 6th September, 2019, 09:02 AM

Hi.
If you have OP Com V5 with a real PIC 18F458 then you can ( On pcb is date xx.xx.2007). But what for? V 1.99 is a Chinese FW that does not matter in the operation of Chinese Op-Com. If necessary, the software changes FW itself. For example, vauxcom 2014 changes FW from 1.39 to 1.45. FW 1.45 is sufficient for Chinese op com interfaces.