Les Szmidt
2007 5.9 Dodge Ram
2014 Ram 3500 Aisin tuning Emissions Equipped
EFI Live Cummins BETA Tester
Silver Bullet Tuning
silverbullettuning@gmail.com
www.youtube.com/ljszmidt
http://www.facebook.com/SilverBulletTuninig
I had a link a few pages back to a Wiki article that demonstrated the signature system GM used.
https://forum.efilive.com/showthread...l=1#post238349
But as simple as I can put it.
A digital signature is used to validate data.
Encryption scrambles the data so it is not 'readable' until Decrypted.
Unfortunately the digital signatures these days are so complex they cannot be tricked and can valid ones can only be generated by GM.
Cheers,
Ross
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Right ok, yeah that sounds bad. These are the CPU's they are going to be using. Goodnight to tuning for anything running that.
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Dumb question...Dont the newer tunable cummins ecms have a similar signing and a way to patch it so it'll accept unsigned calibrations?
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Yes but they have an exploit to turn it off. The signing is solid, they just left a gap in the door. At this stage it doesn't look like GM made the same mistake.
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We use P&E Micro's equipment for BDM purposes......and the BDM password is different on every ECM.
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Hi, do you recall the ecu family , were you able to access the pad board by removing the thin cover or it required to completely dismantle the box, tks
CPU is a MPC5676R.
There is no BDM pads in a row, the connection points are spread out all over the PCB... and no we aren't showing where they are, we had to destroy an ECM to trace them out .
Forget BDM, honestly you are wasting your time.
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