Root cause analysis by firmware engineers traced the issue to a . When the device powered up, two threads attempted to write to the same memory address in the FPGA configuration space simultaneously. This collision corrupted the cyclic redundancy check (CRC), leading the system to believe its own firmware was malicious or broken. Hence, FPRE005 was a false-positive security lockdown.
On these units, the Tegra X1's boot sequence was modified at the factory. The specific hardware path used by the initial exploit was physically or logically disabled. fpre005 patched