lenovo e15 gen2 bios ? problem

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  • madrali
    New Member
    • Jun 2025
    • 1
    • Turkiye
    #1

    lenovo e15 gen2 bios ? problem

    Model: Lenovo ThinkPad E15 Gen 2 (Intel)
    20TD-50S0KU00

    Hi, my laptop suddenly shut down while it was running. When I try to turn it back on, the screen stays black and it emits a melodic beep.

    I used Lenovo's SmartBeep decoder and it returned error 0284:
    "TCG-compliant functionality-related error (possibly BIOS code validation failure)"



    I then tried to enter crisis BIOS recovery mode by pressing Fn + R at boot. The melodic error code changes, but nothing else happens regardless of whether a USB is inserted. I receive another melodic error tone (attached), but Lenovo's decoder cannot recognize it.

    So I decoded the tones manually and it produced something like:
    01 025858585858585858A

    But i cant find any error code matched with this.

    Any help with decoding this or recovering the BIOS would be greatly appreciated.
    Thanks!
    error sound
    https://jmp.sh
    Last edited by madrali; 06-16-2025, 12:09 PM.
    Tags: bios, bios corruption, lenovo, thinkpad
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