Lenovo ThinkPad X1 Carbon (5th Generation/2017) BIOS DX120 NM-B141

Discussion in 'BIOS/UEFI' started by technical, Apr 19, 2017.

Lenovo ThinkPad X1 Carbon (5th Generation/2017) BIOS DX120 NM-B141 5 5 2votes
5/5, 2 votes

  1. technical

    technical Moderator Staff Member

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    password in ec you need Programming it.
     
  2. MissAircraft

    MissAircraft SUPER VIP

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    Hi, i have completely different question here. after pulling the black cover on the mainboard the crystal which is responsible for the IC JHL6540 broken in half . I have managed to take picture of them but dont know where to find it to fix it.
    [​IMG]
    121A2770.jpg
    this is better quality picture i found online which is not related to this mainboard but the crystal looks same number? Any advice would be helpful

    Mainboard used to power on and give 3 blinks but now it does nothing at all so i believe the crystal probably is damaged . i dont have oscilloscope to confirm
     

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  3. technical

    technical Moderator Staff Member

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    need a main board same code ...
     
  4. MissAircraft

    MissAircraft SUPER VIP

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    so you say you need to find another dead mainboard and replace the crystal from there?
     
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  5. MissAircraft

    MissAircraft SUPER VIP

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    i have been repairing macbook and found on the crystal showing same T250 number so i will try to replace and update you if it works . For the information only it is 25.000MHZ-12PF-20PPM
     
  6. MissAircraft

    MissAircraft SUPER VIP

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    well i have tried but i believe that controller is for thunderbolt so the laptop has to be fixed first...
     
  7. MissAircraft

    MissAircraft SUPER VIP

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    I have tried the bios files but after i have reprogram it - it just doesnt show anything but with the original bios it flash 3 times and go off. Do i need to reprogram the MEC as well?

    My laptop is : 20Hr-003HHH s/n: pF-0SXPUG
    X1 CARBON 5TH GEN says on the backcover
    Mainboard number is DX120 NM-B141 rev 1.0
     

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    #27 MissAircraft, Mar 28, 2019
    Last edited: Apr 3, 2019
  8. MissAircraft

    MissAircraft SUPER VIP

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    I just extracted the mec and its only 195kb not 256kb . can you double check the file or it will write ok the first 195kb and the rest will not fit but the mec will ok to work?
     
  9. MissAircraft

    MissAircraft SUPER VIP

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    i found the problem on your Mec file. the first 2 lines has to be erased and the rest will be ok. i have uploaded yours that works (at least the mainboard gives light with that mec .bin because with your original it wasnt doing anything)
     

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  10. krjavi

    krjavi New Member

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    Hi all, i am working on this model and i cannot find the mec chip that is mentioned. any advice to where it is? is it a BGA chip?
    thanks
     
  11. 03ifix

    03ifix Moderator

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    No,Have Mec1653 this board use schematic then now
     
    #31 03ifix, Jul 2, 2019
    Last edited: Jul 2, 2019
  12. krjavi

    krjavi New Member

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    so do i need to solder to the board to read the mec1653? or remove it to scan?
    This is my first time scanning a mec chip. I mostly do 8pin chips found in MacBooks and older windows computers.
     
  13. 03ifix

    03ifix Moderator

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    Solder is working why you read?Password?
     
  14. krjavi

    krjavi New Member

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    this computer has password. I need to know how to read the MEC1653 to remove the password.
     
  15. 03ifix

    03ifix Moderator

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    Above i think have pics you need to know where is connection solder your board like TMS,CLK,RMST or other if you success read then you cannot solve error dmi means serial number or other info.My suggest to buy patch is easy or work without any error.
     
  16. krjavi

    krjavi New Member

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    which programmer do I need to read the mec1653?
     
  17. 03ifix

    03ifix Moderator

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    Svod.RT809H both work
     
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  18. andres solano

    andres solano New Member

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    Como instalar mec
     
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