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According to Wikipedia article

Before booting in the main Kernel, Samsung runs a "pre-boot" environment where it checks for the signature match of all elements of the OS.

If a method to get root that does not rely on the bootloader existed, would this bypass Knox? For example if an exploit was found? After the e-fuse for Knox is tripped, can it be untripped, or no because it's physical?

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  • No, you can think of Knox as being a part of TEE, so bypassing that is theoretically possible but practically impossible (if you could tinker with TEE you'd be a rock star of that world) // Knox isn't physical, it's an electronic fuse. Once it's blown, you need to replace the chip, which is beyond a user – beeshyams Dec 11 '20 at 6:40
  • @JonDon I think your question is misformulated, therefore beeshyams answer is no. "Knox" is not only the bootloader check, Knox is the name of the whole security system of Samsung devices. I think your real question is "will the device be able to detect if I do something with temporary root permissions gained by an exploit". – Robert Dec 11 '20 at 8:00
  • not possible forum.xda-developers.com/t/… – alecxs Dec 11 '20 at 9:23

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