Tesla Wall Connector bootloader bypasses the firmware downgrade ratchet(www.synacktiv.com)
56 pointsby p_stuart825 hours ago4 comments
  • thejazzman24 minutes ago
    PSA: If your wall connector loses wifi, it'll just throw your charging schedules out the window and turn on/off sporadically. This is especially noteworthy if you have Time of Use billing :| SET THE TIMER ON THE CAR DIRECTLY!
    • compounding_it8 minutes ago
      >SET THE TIMER ON THE CAR DIRECTLY!

      This would open up a lot of issues to get away with not paying and charging for free.

      • m4633 minutes ago
        Your comment makes no sense. The tesla wall connector is a home charging port you install in your garage.
  • m4632 hours ago
    I hate the gen 3 wall connector.

    It creates a wifi access point in your garage that you cannot turn off:

      TeslaWallConnector_<unique-id>
    some people were able to downgrade their firmware to a version that didn't do that, but i guess this article shows telsa got rid of that ability.

    I would love to be able to hack any firmware to disable that.

    I also read that a connected tesla car can force an over-the-air firmware update maybe through the charging cable or wifi, but I haven't verified that.

    • ralph84an hour ago
      The SSID stops broadcasting after the unit is commissioned, unless you're using power sharing between multiple units. In that case the SSID is used for the units to communicate.
      • m463an hour ago
        by commissioned you mean "connect it to your home wifi and let it talk to tesla"? (i won't do that)

        because it hasn't gone away after configuring the setup stuff (amps, etc)

        • ralph8429 minutes ago
          And make sure the firmware is up to date. Mine is at 26.2.2.
        • Rohansi33 minutes ago
          Mine did
    • iugtmkbdfil834an hour ago
      Thank you. This information is not listed anywhere and I am currently getting quotes for solar panel build.
    • 2 hours ago
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  • mystraline2 hours ago
    Repeat after me:

    An owner voluntarily downgrading firmware to gain control of your hardware IS NOT A HACK.

    And if an adversary is doing this, then they have already breached yoir physical security.

    • an hour ago
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    • taneqan hour ago
      Arguably it’s a crack. A good one, though.
    • kube-systeman hour ago
      Eh, that’s a bad generalization. defense in depth is a thing and there are many cases where you’d want to protect against attackers with physical access
  • 486sx333 hours ago
    Why would I want to hack the bootloader for a wall charger? Asking for a friend
    • culi3 hours ago
      You can bypass vehicle restrictions. You could potentially then use it for J1772-compatible EVs (like a Chevy Bolt or Nissan Leaf)

      Or just for the spirit of actually owning the shit you pay for.

      • m4632 hours ago
        I don't think there are any restrictions. I think j1772 might just work with an adapter (adapt from the nacs plug to the j1772 plug)

        I thought tesla even made a j1772 native wall connector.

        • adamsb62 hours ago
          I use my Gen 1 Tesla Wall Connectors to charge my NACS-native Lucid Gravity.
        • akerl_2 hours ago
          Can confirm. I've used an adapter to charge 2 different non-Tesla cars off my wall connector.
      • decimalenoughan hour ago
        What vehicle restrictions? This is for the Tesla home charger, not Superchargers.
      • ashoeafoot2 hours ago
        [dead]
    • NewJazz2 hours ago
      Implement your own payment provider