Section C — Practical scenarios 11. Advise contacting Dell Support with device service tag and receipt; if expedited in-house: verify ownership, attempt official support service, or use enterprise tools if available; avoid third-party master-code tools. If owner-authorized and model allows, perform CMOS jumper battery reset per service manual. 12. Do not attempt bypass; document seller attempts to contact; if unable to reach and no proof of ownership, return device or report to platform for fraud. If you obtained device legitimately, contact Dell with service tag and proof. 13. Use centralized management: enroll devices in corporate DCU/iDRAC/MDM, set a corporate supervisor password escrowed in a secure vault, maintain change logs, require ticketed requests and owner authorization, and perform periodic audits.