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Thinkpad T490 Bios Password Removal: Difference between revisions

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This guide does '''not''' apply to hard-drive passwords.
This guide does '''not''' apply to hard-drive passwords.
[[File:Placeholder image.jpg|thumb|Example image (Figure 1) -- No image yet. Help expand this page by uploading it!]]
[[File:Lenovo Power-On, Supervisor, or System Management password prompt.jpg|thumb|Power-On/Supervisor/System Management Password promt. (Figure 1)]]
[[File:Lenovo_Hard%3DDrive_Password_Prompt.jpg|thumb|Hard-Drive Password promt -- This guide does not apply! (Figure 2)]]
==Symptoms==
==Symptoms==



Revision as of 21:00, 14 January 2024

Thinkpad T490 Bios Password Removal
Device Thinkpad T490
Affects part(s) MEC1633
Needs equipment Soldering Iron; Glasgow Interface Explorer (or other EC programmer)
Difficulty ◉◉◉◌ Hard
Type Soldering, Software


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Problem description

This guide describes how to remove a Power-On / Supervisor / System Management Password that the laptop might ask for during boot, or while entering setup.

This guide does not apply to hard-drive passwords.

Power-On/Supervisor/System Management Password promt. (Figure 1)
Hard-Drive Password promt -- This guide does not apply! (Figure 2)

Symptoms

  • The screen shows the BIOS password icon (Figure 1)
  • The screen must not show the HDD password icon (Figure 2)

Solution

If the issue has a single, specific solution, provide it in this section and delete the sub-headers below. Otherwise, if there are multiple potential causes for the problem, outline the process of identifying the root cause and offer corresponding solutions below.

Diagnostic Steps

Repair Steps