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There's something VERY suspicious about this fake fuel saving product. Why would they use analogue circuitry to turn a microcontroller on and off?
This is a fake OBD engine optimiser which incorporates rogue network interface circuitry with the usual pretend network activity LEDs, but it uses an on/off button that could have used a spare I/O pin on the microcontroller, but instead fudges it with transistors. That makes me wonder if the design was done by someone who used existing software, but didn't have the knowledge to customise it or rewrite it from scratch.
It's not complex software at all. Even in raw assembly code it's just a sequence of bit toggling, loops and delays. It's easily a days work to write and fine tune the software from scratch.
The use of a double sided PCB with fake tracks leading to hidden through holes is pretty devious. It cast enough doubt into my mind to make me desolder components to confirm that the tracks were indeed hidden dead-ends.
Pretty devious. But the reverse engineering was aided admirably by rum and cream soda.
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12 thoughts on “Fake product with stolen software? with schematic”
  1. Avataaar/Circle Created with python_avatars TheHulkamaniaBrother2.0 says:

    So do they actually make a real obd2 fuel saver or is that a whole big lot of fuckin bullshit? I get 3 miles per gallon right now lmaooooo I love to piss gasoline off into the water in a few lakes and rivers in my area eh lol

  2. Avataaar/Circle Created with python_avatars David Parkins says:

    I assume this is only a two-sided printed circuit board? If it were a four or six layer pcb, then "blind" plated through holes might nevertheless connect elsewhere. Do you ever meet this problem when reverse engineering?

  3. Avataaar/Circle Created with python_avatars peter palludan says:

    But will it carbonate ?

  4. Avataaar/Circle Created with python_avatars Peter Holst says:

    Is this video a reupload?

  5. Avataaar/Circle Created with python_avatars James Hobbs says:

    but I want to believe!

  6. Avataaar/Circle Created with python_avatars GeneSun says:

    Amazing how much effort people go to, to defraud other people!

  7. Avataaar/Circle Created with python_avatars Akinaro says:

    One day they will just get few damaged components, solder them randomly without any connectors or power and sell it like that.

  8. Avataaar/Circle Created with python_avatars 777anarchist says:

    The missing resistors may be there for termination. Were probably deemed unnecessary for the final design.

  9. Avataaar/Circle Created with python_avatars Titanium Man says:

    OK enough of these fake units, is it possible to make one that works?

  10. Avataaar/Circle Created with python_avatars ann onn says:

    Almost as effective as colloidal silver.
    "if you're bald it'll give you hair, If you've got straight trousers it'll give you flares,,,"

  11. Avataaar/Circle Created with python_avatars strayling says:

    It's almost as if an AI was hooked up to some PCB software and trained to make fake circuits. Damn, that's really going to happen, isn't it?

  12. Avataaar/Circle Created with python_avatars wightknuckle says:

    Clown shoes the circuit

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