how can clean nvram any bios

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  • foramlaptop
    Senior Member
    • Feb 2015
    • 50
    • pakistan

    #1

    how can clean nvram any bios

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    I am attempting a repair on a Lenovo ThinkPad Yoga 11e that is currently stuck at boot with the error: "0275 error CMS" even after setup new bios battery and will not allow me to enter the BIOS/Setup.

    This is a critical issue that I believe requires flashing the BIOS chip directly using a programmer (e.g., CH341A/RT809H), as standard software updates or resets are not possible.

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    Hi

    i have dell latitude E7270 with following symptoms:
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    i was able to save bios and was going to try bios clean myself but get an below error when i drop it in ME analyzer.(unsure whether this sometimes occurs or could be due to bad/corrupt bios)

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  • MMH3
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    Hello,

    i would appreciate, if someone could help me.


    DELL: 3450 sff
    Servicetag: (!) obviously FAKE - ABC2345

    Mainboard: 0GK35Y - serial /ABC2345/CNFCW0023800L6/
    Chipset: Intel W580 (Rocket Lake PCH-H)
    BIOS: 1.34.1
    ME: 15.0.50.2633

    mor data can be found the HW-Info-data in the rar-file


    I have this BIOS from a DELL Precision 3450 SmallFormFactor mainboard i bought refurbished.. from china.
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  • piernov
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    by piernov
    Laptop model: Thomson THN14B
    Board model: C116C VB1

    Working BIOS
    Clean TXE (2.0.0.2077, original: 2.0.0.2075)
    Clean NVRAM
    Windows key offset: 0x415014 (set to "ABCDE-FGHIJ-KLMNO-PQRST-UVWXY", change before flashing)


    PS: problem was partial short on PS7516 5V boost converter (near the 2R2 inductor) which causes symptoms that look like no POST problem....
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  • haitham sharabati
    [Request] Clean BIOS dump for HP 15-da2007ne (8XF55EA#ABV) - N4000 - BIOS Lock
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    Hello engineers 😀,

    I’m kindly requesting a clean and unlocked BIOS dump for the following HP laptop, as it’s bricked after flashing SP152727. The system now keeps rebooting, and the original issue was an Administrator / Power-On Password that I can no longer access.😏

    🔧 Device Info:
    - Model: HP 15-da2007ne
    - Product Number: 8XF55EA#ABV
    - Serial Number: CND0338P0D
    - CPU: Intel Celeron N4000
    - EC/BIOS Chip: [Add chip number from the motherboard or BIOS chip]

    💀 Problem:😅
    - Device shows “Administrator Password”...
    08-07-2025, 04:54 AM
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