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

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

 

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

 

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

 

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

 

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

 

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?

 

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)

 

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

 

No,Have Mec1653 this board use schematic then now

 

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.

 

Solder is working why you read?Password?

 

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

 

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.

 

which programmer do I need to read the mec1653?

 

Svod.RT809H both work

 

Como instalar mec