Thinkpad X1 Yoga Gen 3 ,How to know if the BIOS is corrupted

[Loki_Fido]

Hi everyone, hope everyone's having a great day.

I have a Lenovo Thinkpad X1 Yoga Gen 3 for repair. (20LES3T900)
I looked in every corner and the laptop seems fine. Its pulling 500mA but no display, no noise, nothing.

So I assume its a BIOS issue. I downloaded the BIOS with CH341A and opened it on ME Analyser and didn't receive any errors.
Does this mean the BIOS is fine? making it a hardware issue?

I downloaded fresh BIIOS from the Lenovo site and used Hex Editor replace the Lenovo's BIOS into my BIOS region. But the file size ended up being bigger than 16MB. Which is my BIOS capacity.


Question 1
Can anyone tell me how to know if my BIOS file is ok? (BIOS attached)

Question 2
I learned about cutting off the header. But which part is considered header? How much to cut off?

Please help. I will return the favor to this community by at least 2 fold.

Thank you, Thank you, Thank you.

[hoaca388]

Hi everyone, hope everyone's having a great day.

I have a Lenovo Thinkpad X1 Yoga Gen 3 for repair. (20LES3T900)
I looked in every corner and the laptop seems fine. Its pulling 500mA but no display, no noise, nothing.

So I assume its a BIOS issue. I downloaded the BIOS with CH341A and opened it on ME Analyser and didn't receive any errors.
Does this mean the BIOS is fine? making it a hardware issue?

I downloaded fresh BIIOS from the Lenovo site and used Hex Editor replace the Lenovo's BIOS into my BIOS region. But the file size ended up being bigger than 16MB. Which is my BIOS capacity.


Question 1
Can anyone tell me how to know if my BIOS file is ok? (BIOS attached)

Question 2
I learned about cutting off the header. But which part is considered header? How much to cut off?

Please help. I will return the favor to this community by at least 2 fold.

Thank you, Thank you, Thank you.

Serial number ?

[Loki_Fido]

Serial number ?

Hi hoaca388,

S No is R9-0S8TGG 18/11

Just to know, why serial number is necessary?

Thank you bud

[hoaca388]

Hi hoaca388,

S No is R9-0S8TGG 18/11

Just to know, why serial number is necessary?

Thank you bud

It helps determine which bios model to load.

[Loki_Fido]

It helps determine which bios model to load.

Ah. ok ok...
Makes sense.

Thanks

[Loki_Fido]

It helps determine which bios model to load.

Hoaca, any update bud?
Thanks

[hoaca388]

Hoaca, any update bud?
Thanks

X1 Yoga 3rd Gen Laptop (ThinkPad) - Type 20LE

[Loki_Fido]

X1 Yoga 3rd Gen Laptop (ThinkPad) - Type 20LE

Thanks a million hoaca.

Was there any issue in my original bios?

[Loki_Fido]

Hi folks,

Attached BIOS file is from the Lenovo ThinkPad X1 Yoga 3rd.

Giving back to the community,

I love you all.

[peste]

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