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bri3d / VW_Flash

Flashing tools for VW AG control units over UDS. Compression, encryption, RSA bypass, and checksums are supported for Simos18.1/6/10, DQ250-MQB, DQ381-MQB, and Haldex4Motion-Gen5-MQB.
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How to use VW Flash without a FRF #131

Closed Golfather closed 3 weeks ago

Golfather commented 1 month ago

Hi chaps

For this sw version no FRF was ever released:

8S0906264 0002 2018 Audi TT CJSA 1.8T Simos 18.1

I have found a .bin read by an unknown tool but not sure if its been encrypted and therefore no good to use with VW Flash.

Is there any way to check or parse the bin to ensure it is usable by VW Flash before i brick the ECU?!

https://mega.nz/file/5FJQmR5K#jlAfzkXN0epsmubinUsFfiYDbEWjxUn7j2IrNCco3bs

Thanks

aarons3 commented 1 month ago

I plopped the calibration block of this file into a known good SC8O40 bin and they were identical. ASW and bootloader blocks are definitely not encrypted. Obviously a little bit unknown original of this file, but it looks good to go in terms of VW Flash compatibility.

On Thu, Jun 6, 2024 at 7:58 PM Golfather @.***> wrote:

Hi chaps

For this sw version no FRF was ever released:

8S0906264 0002 2018 Audi TT CJSA 1.8T Simos 18.1

I have found a .bin read by an unknown tool but not sure if its been encrypted and therefore no good to use with VW Flash.

Is there any way to check or parse the bin to ensure it is usable by VW Flash before i brick the ECU?!

https://mega.nz/file/5FJQmR5K#jlAfzkXN0epsmubinUsFfiYDbEWjxUn7j2IrNCco3bs

Thanks

— Reply to this email directly, view it on GitHub https://github.com/bri3d/VW_Flash/issues/131, or unsubscribe https://github.com/notifications/unsubscribe-auth/AWS7XYSECRYNYQ6WV44XKXTZGEASLAVCNFSM6AAAAABI5XCIYSVHI2DSMVQWIX3LMV43ASLTON2WKOZSGMZTSMZYGAYDSOA . You are receiving this because you are subscribed to this thread.Message ID: @.***>

Golfather commented 4 weeks ago

Ok chaps, found an actual FRF for the same engine code CJSA except for its for an Audi A3 FL_8V0906264H_0005

All the CBOOT and ASW data is identical between the bin of 8S0906264 and 8V0906264H Only CAL areas are different, which is to be expected as different vehicles

Now more confident in unlocking this ECU as the bin for 8S0906264 seems legit However the question now is if i need to relock the ECU, I will still need the original FRF

Is there any way we can recreate a FRF for 8S0906264_0002 using 8V0906264H_0005.frf with the CAL of 8S0906264 ?

VW Flash has the capability of extracting from FRF, so using the same process could we recreate one?

aarons3 commented 4 weeks ago

There's no difference between using a bin or frf, be it to unlock the ECU or relock it / flash a totally stock file. With that bin that you already have, you have all need to flash back to stock/relock if needed.

Golfather commented 4 weeks ago

Ok thanks, thats useful to know, appreciate the help :)

Golfather commented 3 weeks ago

Worked a treat. Thanks all !