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Lenovo x1 carbon
SN/ R9-0B973N 14/11
Problem/ No Display
MB/; LMQ-1 MB 12298-2Comment
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NEW MEMBER HERE
The problem I'm having is i had a bad bios flash trying to unlock supervisor password on Lenovo x1 carbon 20A7 GEN 2
By mistake i deleted bios file and all the its doing it one power on light no boot no post no display nothing.
My Motherboard is
LMQ-1 MB 12298-2 48. 4LY26 . 021
chip mxic MX25L12873F
type20a7-002jus s/n r9-02w67r-14/07
If anyone could help with the bios I'd be grateful thanksComment
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HI guys, everything is ok but bios is not working properly, no display issue. 3v 5v ram v ok
Lenovo thinkpad x1 carbon
Board Code LMQ-1 MB 12298-2 48.4LY06.021
no serial no or model no avail
backup attached
anybody can help for a new clean bios
reagardsComment
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please need bios
LMQ-1 12298-2
48.4LY06.021
Type 20A8-A0KM00
S/N R9-0231EY 14/05Comment
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>>>>> https://www.badcaps.net/index.php?pageid=donate1 <<<<<
Every donation made will go towards server fees and maintenance costs.Comment
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need bin bios for LMQ-1 MB 12298-2
LMQ-1 12298-2
48.4LY06.021
Type 20A8-S2K200
S/N R9-0ARVHW 14/10
cyclic reboot no imageComment
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LMQ-1 MB 12298-2 48.4LY06.021
Hi, I have Lenovo x1 carbon . it turns on but i have no image.
Please help me this is my backup bios bin file.
Type 20A7-0091UK S/N R9-0B3TZN 14/10Comment
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Hi,
I would like to kindly ask if anyone could help, please, and provide a clean BIOS for the following model:
. i5, 8GB RAM
Type: 20A8-S0FQ0M
S/N: R9-0AXF8M 14/10
Thank you in advance,
ElizaComment
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Hello everyone,
I’m currently working on a dead MSI GP75 Leopard (MS-17E71) motherboard (i7 CPU, NVIDIA GPU) with a no display/no backlight issue initially. After extensive investigation, I’m at a critical stage involving EC firmware, BIOS/ME region interaction, and possible deep corruption. I'm seeking advanced insight from anyone with experience in EC/BIOS sync issues or PCH-level behavior. Here’s a full breakdown:
🧩 Initial Issue- Board powers on (fans spin, keyboard lights up and can be adjusted, caps lock led lights), but no display or backlight
- External display (HDMI) shows
07-24-2025, 02:17 PM -
Hi everyone.
I have an engineering sample of a Lenovo ThinkPad X1 Carbon 11th Gen (TYPE 21HM-2FVT05, S/N PF-40G7CD) with an Intel Core i7 1360P (ES – Intel 0000). Since this is an engineering sample, the BIOS had a massive number of various settings. One day, I was experimenting with the BIOS settings and, after saving them, the laptop stopped booting and played a melody after pressing the power button, signaling error code 0002 (Internal bus error), just like in this post: https://www.badcaps.net/forum/troubl...shooting-lapto... -
First of all thanks to all of our members who have posted previously all methods posted here.
Please leave a comment if you find something new,or have anything else to add.
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Find by serial number,model number or series
If you know the laptop serial or model number go to HP support https://support.hp.com/us-en/drivers/laptops .
Enter the serial number or model number and click submit.On the next screen you will have to enter the OS
Operating system and OS version.If... -
Hi, my laptop wont boot at all
With original bios no POST, only LED lights
With alternative BIOS from model TP500LN (flashed via programmer) the notebook works again
Some issues
A- with bios from 500LN, it won't update from bios of model 500LA (from 500LN v203 to 500LA v300)
B- If updated from 500LN version 203 to 300, the battery stops being recognized
Things I tried
1- Update / clear ME: Took the non working bios, made a backup, and did this: https://www.badcaps.net/forum/troubl...theory/trouble... -
First of all, ive veen reading these forums for some time and its always veen very helpful, so i thank you all for this amazing comunity.
I have a lmq-2 13268-1 motherboard from a lenovo x1 carbon 3rd gen. And the MX25l12873f (U49) bios pin 8 is not getting voltage.
So far these are my diagnostics:
When given 19v trough power adapter, consumption reads 0.003 amps for about 5 seconds then nothing.
When power button pressed same result, and i get three green blinking lights from the pwr btn led. But foesnt turn on.
If i plug the battery...
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