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Unpatchable AMD Chip Flaw Unlocks Paid Tesla Feature Upgrades (www.tomshardware.com)
submitted 3 years ago by to c/technology@beehaw.org
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Original source: https://www.blackhat.com/us-23/briefings/schedule/index.html#jailbreaking-an-electric-vehicle-in--or-what-it-means-to-hotwire-teslas-x-based-seat-heater-33049

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[–] 5 points 3 years ago (1 child)

Is the MCU no longer replaceable? Definitely was possible to replace them when they were shipping with weak eMMC that degraded and bricked the car (plenty of people also soldered better chips).

It's still not cheap, but there are crashed Teslas aplenty, could pull it off one if you can't pay retail.

This mod is something that people will more likely do when the car has depreciated anyway.

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  • [–] 4 points 3 years ago (1 child)

    I meant it can be technically replaced, but Tesla won't sell you one if you break it for fun

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  • [–] 4 points 3 years ago*

    Idk, seems like a quick buck earned on a car already sold, why wouldn't they? They even sold upgrade kits from MCU to MCU2. The key ingredient was outrageous margins (MCU2 upgrade kit cost over 2k, but ebay MCU-Z units are under 800 used and I'm pretty sure that the used ones are STILL more than what Tesla pays for them).

    It costs them nothing if you do manage to upgrade your car with a mod, but they make money if you fail and have to buy a new unit off them. I'd keep the thing going if I was in charge of Tesla tbh. And then in like half a year announce that these cars lose access to Supercharger network or something.

    That's what I'd do if I was Musk, anyway. If you're a villain already, why not go full evil

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