Dell 1B58 BIOS password: models and recovery

1B58 is the four-character ending after the dash on a Dell BIOS password screen. It is part of the device code, not the recovery password. Use the complete on-screen code to check recovery options.

Updated 2026-10-12

Author: Dmytro Plevan · NEXX GSM

Where to find the full BIOS code

  1. Read the System Number on the Dell Admin password screen, sometimes headed Dell Security Manager. Use the screen rather than only the Service Tag sticker.
  2. For example, XXXXXXX-1B58 has two parts: enter XXXXXXX in the code field and choose 1B58 as the suffix. Do not add the ending twice.
  3. If the code is missing or unreadable, send support a photo of the password screen before ordering. Send the screen photo on WhatsApp.

A Windows sign-in, BitLocker recovery key or HDD password is a different request. Compare the password screens.

Check the screen before continuing

For an Admin password that prevents changes to Dell BIOS settings. Not for System/power-on, Windows, drive or BitLocker passwords. Online service: no device shipping or remote access to your files. Recovery password for access to Dell BIOS settings and a PDF guide, sent by email after payment.

Check an Admin BIOS code and price

Dell system families and models with 1B58

These are examples, not a complete list. If your model is not listed, check the full code on your BIOS password screen. These model and suffix combinations come from enquiries and code checks, not a list of confirmed successful recoveries. Years refer to model generations, not the manufacture date of your device.

System familyModel examples by approximate year
Dell Pro 52026: Dell Pro 5 14 P514265
Dell Pro 142025: Dell Pro 14 PC14250, Dell Pro 14 PC14255
Dell Pro 14 Plus2025: Dell Pro 14 Plus PB14250
Dell Pro Max2025: Dell Pro Max 16 MC16250
Dell Pro Max 16 Plus2025: Dell Pro Max 16 Plus MB16250
Dell Pro Plus2025: Dell Pro 13 Plus PB13250, Dell Pro 14 Plus PB14255, Dell Pro 16 Plus PB16250

Find a guide for your Dell model

The same model can show different BIOS code endings. If your screen shows another suffix, open its guide:

Compare all five Dell suffixes

FAQ3
Does the list include Dell Pro laptops from 2026?

Yes: Dell Pro 5 14 P514265 is the 2026 example for 1B58. The Pro 14 PC14250/PC14255, Pro 16 Plus PB16250 and Pro Max 16 MC16250 examples are from 2025.

Can I choose the suffix from the laptop model?

No. The same model can show different endings. Use the suffix on your own password screen, even when your model appears in another guide.

What if there is no recovery option for my code?

Check the full code and the type of password first. Dell Support can advise on recovery after verifying ownership; for a company-managed laptop, ask the IT administrator. Master Password Lockout can prevent reset by recovery password.

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