Lenovo X1 Carbon Gen 2 (20A) Bios needed

[peste]

Re: Lenovo Thinkpad X1 Carbon

MB: LMQ-1 MB 12298-2 48.4LY06.021
Bios: MX25L6475E

Does anyone have a working bios? I tried the one from here https://www.laboneinside.com/lenovo-x1-carbon-bios-bin/ but there's no display output. I uploaded the dump.

try..

[maniut83]

Lenovo x1 carbon 2nd gen - LMQ-1MB 12298-2 48.4LY07.021

Hi,

My laptop bios is corrupted and the laptop is not POST-ing. Just lights on the keyboard and no display.
I was able to dump the bios with CH341A Mini Programmer but unfortunately, I don't have much experience to fix it or rebuilding the can someone help me fix my bios file.

in the attachment a left my original bios which I dumped

link to new bios: https://pcsupport.lenovo.com/bg/en/p...tions/HT117661

Many thanks

[DanielDacko]

Re: Lenovo x1 carbon 2nd gen - LMQ-1MB 12298-2 48.4LY07.021

Try this and report.

[maniut83]

Re: Lenovo x1 carbon 2nd gen - LMQ-1MB 12298-2 48.4LY07.021

Hi,

Still sam result, the keyboard is light up but still black screen. Any more advice

Thanks

[SMDFlea]

Re: Lenovo x1 carbon 2nd gen - LMQ-1MB 12298-2 48.4LY07.021

Your original bios has some corruption in it. The bios at post #2 has the wrong ME firmware and its corrupt.
Try these bios and use NeoProgrammer or ASProgrammer,both good alternatives to the ch341a software

https://www.badcaps.net/forum/showpo...04&postcount=7 NeoProgrammer
https://www.badcaps.net/forum/showpo...6&postcount=10 AsProgrammer

https://www.badcaps.net/forum/showpo...3&postcount=13
https://www.badcaps.net/forum/showpo...7&postcount=38

[maniut83]

Re: Lenovo x1 carbon 2nd gen - LMQ-1MB 12298-2 48.4LY07.021

I was using Asprogrammer to flash these two files but it is giving me the error: Press "Unprotect" and check datasheet"]

Used neoprogrammer to flash it but the laptop still don't show nothing on the display.

Any more advice.

Many thanks

[SMDFlea]

Re: Lenovo x1 carbon 2nd gen - LMQ-1MB 12298-2 48.4LY07.021

I was using Asprogrammer to flash these two files but it is giving me the error: Press "Unprotect" and check datasheet"]

Used neoprogrammer to flash it but the laptop still don't show nothing on the display.

Any more advice.

Many thanks

One or both of those bios should have worked. If you want further help start a new thread in the main laptop forum - https://www.badcaps.net/forum/forumdisplay.php?f=23 .If you have a multimeter post voltage readings on all large grey coils.

[razadom]

Re: Lenovo X1 Carbon Gen 2 (20A) Bios needed

Hi all
need help for this lenovo x1 carbon gen 2. No display
just keyboard light and capslock at boot.
i'll attach my dump
Thanks

[sfagnum]

Re: Lenovo X1 Carbon Gen 2 (20A) Bios needed

Need BIOS

MB: LMQ-1
12298-2
48.4LY05.021
16MB

[peste]

Re: Lenovo X1 Carbon Gen 2 (20A) Bios needed

Need BIOS

MB: LMQ-1
12298-2
48.4LY05.021
16MB

post the backup copy of the original laptop bios

[sfagnum]

Re: Lenovo X1 Carbon Gen 2 (20A) Bios needed

post the backup copy of the original laptop bios

BIOS 1.4
problem with this version:
After BIOS update can't load from any device (SSD/USB/USB-CD)
But can access to the BIOS

very strange:
after update in BIOS 3(!!!) "ATA HDD" when select bootable device
When press F12 I see SSD/USB/USB-CD, but can't boot from it.

PS In BIOS tested
- Defaults settings
- Enable/Disable security settings
- USB enable

[peste]

Re: Lenovo X1 Carbon Gen 2 (20A) Bios needed

BIOS 1.4
problem with this version:
After BIOS update can't load from any device (SSD/USB/USB-CD)
But can access to the BIOS

very strange:
after update in BIOS 3(!!!) "ATA HDD" when select bootable device
When press F12 I see SSD/USB/USB-CD, but can't boot from it.

PS In BIOS tested
- Defaults settings
- Enable/Disable security settings
- USB enable

post (type) on and serial number (SN)

[sfagnum]

Re: Lenovo X1 Carbon Gen 2 (20A) Bios needed

post (type) on and serial number (SN)

From label
TYPE:
20A7-0067MN
S/N:
R9-00K9TG 14/02

+ Screenshot BIOS info

[peste]

Re: Lenovo X1 Carbon Gen 2 (20A) Bios needed

From label
TYPE:
20A7-0067MN
S/N:
R9-00K9TG 14/02

+ Screenshot BIOS info

try..

[sfagnum]

Re: Lenovo X1 Carbon Gen 2 (20A) Bios needed

try..

not working (

[monishkarthik]

Re: Lenovo X1 Carbon Gen 2 (20A) Bios needed

Need help over bypassing bios password, here attached dump.
Thanks in advance

[SMDFlea]

Re: Lenovo X1 Carbon Gen 2 (20A) Bios needed

Need help over bypassing bios password, here attached dump.
Thanks in advance

https://www.badcaps.net/forum/showthread.php?t=103570

You MUST:

• Read BIOS guides, methods, resources and tools
• Try the method at BIOS guides, methods, resources and tools before requesting help
• Explain you were not able to succeed with the methods at BIOS guides, methods, resources and tools

[motanya]

Re: Lenovo X1 Carbon Gen 2 (20A) Bios needed

I need a working bios for lenovo x1 carbon type 20A7 MB: LMQ-1 MB 12298-2 48.4LY05.021, issue, power on fan spin 1min no display. I have tried cleaning myself but i get an Allenvile API Error:status=131.var=IccLockMask

[peste]

Re: Lenovo X1 Carbon Gen 2 (20A) Bios needed

I need a working bios for lenovo x1 carbon type 20A7 MB: LMQ-1 MB 12298-2 48.4LY05.021, issue, power on fan spin 1min no display. I have tried cleaning myself but i get an Allenvile API Error:status=131.var=IccLockMask

try...

[motanya]

Re: Lenovo X1 Carbon Gen 2 (20A) Bios needed

try...

Thanks but, it is not working