Xref Aosp !!better!! -

Aria pulled a thread and found the configuration that triggered the legacy path: an ancient vendor prop that enabled debugging of legacy hal components. It was turned on when the device detected a nonstandard bootloader signature. And that detection logic? A race condition in the early boot path that sometimes returned false negatives — only on devices with older flash controllers and one particular NAND vendor. A coincidence of hardware, bootrom quirks, and leftover compatibility code.