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

Lenovo ThinkPad X1 Carbon (5th Generation/2017)
BIOS DX120 NM-B141
X1 Carbon 5th Gen - Kabylake (Type 20HR, 20HQ) Laptop (ThinkPad)
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W25Q128 DX120 NM-B141 V1.0
Schematics Lenovo X1 NM-B141 YD1KL-3 Ver 3.08
NM-B141.jpg
 

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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.

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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MissAircraft said:
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.

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
Click to expand...
need a main board same code ...
 
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
 
ThienBui said:
Lenovo ThinkPad X1 Carbon (5th Generation/2017)
BIOS DX120 NM-B141
X1 Carbon 5th Gen - Kabylake (Type 20HR, 20HQ) Laptop (ThinkPad)
add
W25Q128 DX120 NM-B141 V1.0
Click to expand...

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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Last edited:
ThienBui said:
Lenovo ThinkPad X1 Carbon (5th Generation/2017)
BIOS DX120 NM-B141
X1 Carbon 5th Gen - Kabylake (Type 20HR, 20HQ) Laptop (ThinkPad)
add
W25Q128 DX120 NM-B141 V1.0
Click to expand...


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?
 
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
 
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.
 
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.
 
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