While not officially documented for end-users, service manuals and field experience indicate that some Vivid E9 units use:
She typed the token into the E9 prompt. The cursor pulsed once, then twice. The screen blinked, and for a moment it was as if the machine inhaled. Text scrolled: AUTHORIZED. ACCESS GRANTED. Vivid E9 Bios Password
“We can fix it,” she said. “We can roll back the filter and scrub the logs.” While not officially documented for end-users
This is the safest method as it does not void warranties or risk damaging the motherboard. then twice. The screen blinked