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  1. #1
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    Cobb Tuning joins in on Porsche 991.2 9A2B6 3.0 Siemens SDI21 ECU OBD-II port unlocking - Accessport flashing without physical ECU unlock

    PorscheBoost speculated with APR's announcement of cracking Siemens SDI 21.X OBD-II port flashing without needing a physical unlock first that we would see handheld ECU unlock solutions pop up. Right on cue Cobb Tuning announced this ability for the Accessport.

    Click here to enlarge

    It was just a matter of time before this crack spread and every competitor scrambled and or is scrambling to get it for themselves.

    Cobb is not providing a definitive date but stating you soon will be able to unlock your ECU on your own:

    Click here to enlarge Originally Posted by Cobb Tuning
    Luckily, that's all about to change. We’re excited to announce that the ability to tune your Porsche 991.2 generation 911 or 718 in the comfort of your own garage is around the corner. We understand that there are some of you who have been chomping at the bit to tune your Porsche with an Accessport but have been leary of the initial install process. The Accessport allows users to install/uninstall at their discretion as well as change map files for specific situations such as a track day or handing your keys to a valet.
    The Accessport offers several interesting features so those who already have tunes from another company may still be interested as apparently PDK TCU (transmission control unit) tuning is coming among other things.

    The tuning competition on the platform is starting (finally) to really heat up.

    Click here to enlarge
    Three sets of brand new 991.2 3.0 headers for sale: Kline, Fabspeed, and Vektor Ceramic Coated

    IPD plenum for Porsche 991.2 3.0 for sale: $650

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    So did cobb steal this somehow from APR?

    Or did some 3rd party actually crack the ECU and then APR and Cobb just bought a license to whatever software/tool allows this?

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    4 out of 4 members liked this post. Yes Reputation No
    APR cracked it, waited until they had several ECU suites available before releasing it, and then other companies have since stolen the "crack". Being a port flash, it is hard(almost impossible) to protect from showing how they unlocked the ECU's.

    Contrary to popular belief, almost all "local" tuners and a large majority of the bigger companies do not hack into the ECU, they buy the ability to program the ECU from 3rd party companies like Autotuner, bFlash, and CMD. If you recall, APR had Audi B8 S4 software for almost two YEARS before anyone else did, because they protected how they got into the ECU.

  4. #4
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    Click here to enlarge Originally Posted by Nstig8r Click here to enlarge
    APR cracked it, waited until they had several ECU suites available before releasing it, and then other companies have since stolen the "crack". Being a port flash, it is hard(almost impossible) to protect from showing how they unlocked the ECU's.

    Contrary to popular belief, almost all "local" tuners and a large majority of the bigger companies do not hack into the ECU, they buy the ability to program the ECU from 3rd party companies like Autotuner, bFlash, and CMD. If you recall, APR had Audi B8 S4 software for almost two YEARS before anyone else did, because they protected how they got into the ECU.
    This guy knows what he's talking about.
    Three sets of brand new 991.2 3.0 headers for sale: Kline, Fabspeed, and Vektor Ceramic Coated

    IPD plenum for Porsche 991.2 3.0 for sale: $650

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    1 out of 1 members liked this post. Yes Reputation No
    Sticky ! Nstig8r has only been part of the game since forever.

  6. #6
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    Click here to enlarge Originally Posted by 3DMetal Click here to enlarge
    Sticky ! Nstig8r has only been part of the game since forever.
    Indeed he has.
    Three sets of brand new 991.2 3.0 headers for sale: Kline, Fabspeed, and Vektor Ceramic Coated

    IPD plenum for Porsche 991.2 3.0 for sale: $650

  7. #7
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    Click here to enlarge Originally Posted by Nstig8r Click here to enlarge
    APR cracked it, waited until they had several ECU suites available before releasing it, and then other companies have since stolen the "crack". Being a port flash, it is hard(almost impossible) to protect from showing how they unlocked the ECU's.

    Contrary to popular belief, almost all "local" tuners and a large majority of the bigger companies do not hack into the ECU, they buy the ability to program the ECU from 3rd party companies like Autotuner, bFlash, and CMD. If you recall, APR had Audi B8 S4 software for almost two YEARS before anyone else did, because they protected how they got into the ECU.
    Very interesting, did not know it was that easy. Back in the day I remember when OE tuning tried to figure that stuff out on one of my cars, wasn't so simple lol.

    I would assume the tune would have to be on a car already for them to reverse engineer the way it was loaded onto it? Interesting how it all came out in a single day.
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  8. #8
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    Click here to enlarge Originally Posted by Payam@BMS Click here to enlarge
    Very interesting, did not know it was that easy. Back in the day I remember when OE tuning tried to figure that stuff out on one of my cars, wasn't so simple lol.

    I would assume the tune would have to be on a car already for them to reverse engineer the way it was loaded onto it? Interesting how it all came out in a single day.
    I think they dump the OBD2 comms during the flash process to reveal the secret sauce.

    Doing a full read after the fact I think only yields the changes to the mapping, not how the mapping got pushed to the ECU.

  9. #9
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    Click here to enlarge Originally Posted by crapinternet Click here to enlarge
    I think they dump the OBD2 comms during the flash process to reveal the secret sauce.

    Doing a full read after the fact I think only yields the changes to the mapping, not how the mapping got pushed to the ECU.
    Yep
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