Lenovo X1 Carbon 9th Gen Black Screen

[sikocan]

I believe Chip 2 is BIN is the main one as it contained the Windows product key, marked with XXXXX for now.

SN: PF3G1REP
MODEL: 20KW-00J1AU

PROBLEM: Turns on blank screen, charging circuitry motherboard looks good. I have tried another firmware here - but resulted in 5V will not go to 20v due to different PD firmware I believe - using the current firmware it does go to 20V.

Requesting a firmware clean/BIOS region cleaned. Here is output from ME Analyzer:
╔═══════════════════════════════════════════╗
║ ME Analyzer v1.304.5 r343 ║
╚═══════════════════════════════════════════╝

╔═══════════════════════════════════════════════════════════════╗
║ 20250625_113434_SVOD4-2-bottom one.bin (1/1) ║
╟──────────────────────────────────────────┬────────────────────╢
║ Family │ CSE ME ║
╟──────────────────────────────────────────┼────────────────────╢
║ Version │ 15.0.50.2633 ║
╟──────────────────────────────────────────┼────────────────────╢
║ Release │ Production ║
╟──────────────────────────────────────────┼────────────────────╢
║ Type │ Extracted ║
╟──────────────────────────────────────────┼────────────────────╢
║ SKU │ Consumer LP ║
╟──────────────────────────────────────────┼────────────────────╢
║ Chipset │ TGP-LP B ║
╟──────────────────────────────────────────┼────────────────────╢
║ TCB Security Version Number │ 1 ║
╟──────────────────────────────────────────┼────────────────────╢
║ ARB Security Version Number │ 6 ║
╟──────────────────────────────────────────┼────────────────────╢
║ Version Control Number │ 42 ║
╟──────────────────────────────────────────┼────────────────────╢
║ Production Ready │ Yes ║
╟──────────────────────────────────────────┼────────────────────╢
║ OEM Configuration │ Yes ║
╟──────────────────────────────────────────┼────────────────────╢
║ FWUpdate Support │ No ║
╟──────────────────────────────────────────┼────────────────────╢
║ Date │ 2024-06-20 ║
╟──────────────────────────────────────────┼────────────────────╢
║ File System State │ Error ║
╟──────────────────────────────────────────┼────────────────────╢
║ Size │ 0xA9000 ║
╟──────────────────────────────────────────┼────────────────────╢
║ Flash Image Tool │ 15.0.23.1706 ║
╚══════════════════════════════════════════╧════════════════════╝
╔═════════════════════════════════════════════╗
║ Power Management Controller ║
╟─────────────────────────────┬───────────────╢
║ Family │ PMC ║
╟─────────────────────────────┼───────────────╢
║ Version │ 150.1.20.1042 ║
╟─────────────────────────────┼───────────────╢
║ Release │ Production ║
╟─────────────────────────────┼───────────────╢
║ Type │ Independent ║
╟─────────────────────────────┼───────────────╢
║ Chipset SKU │ LP ║
╟─────────────────────────────┼───────────────╢
║ Chipset Stepping │ C ║
╟─────────────────────────────┼───────────────╢
║ TCB Security Version Number │ 0 ║
╟─────────────────────────────┼───────────────╢
║ ARB Security Version Number │ 0 ║
╟─────────────────────────────┼───────────────╢
║ Version Control Number │ 0 ║
╟─────────────────────────────┼───────────────╢
║ Production Ready │ Yes ║
╟─────────────────────────────┼───────────────╢
║ Date │ 2022-11-04 ║
╟─────────────────────────────┼───────────────╢
║ Size │ 0x40000 ║
╟─────────────────────────────┼───────────────╢
║ Manifest Extension Utility │ 15.0.0.1282 ║
╟─────────────────────────────┼───────────────╢
║ Chipset Support │ TGP ║
╚═════════════════════════════╧═══════════════╝
╔═════════════════════════════════════════════╗
║ Power Management Controller ║
╟─────────────────────────────┬───────────────╢
║ Family │ PMC ║
╟─────────────────────────────┼───────────────╢
║ Version │ 150.1.20.1042 ║
╟─────────────────────────────┼───────────────╢
║ Release │ Production ║
╟─────────────────────────────┼───────────────╢
║ Type │ Independent ║
╟─────────────────────────────┼───────────────╢
║ Chipset SKU │ LP ║
╟─────────────────────────────┼───────────────╢
║ Chipset Stepping │ C ║
╟─────────────────────────────┼───────────────╢
║ TCB Security Version Number │ 0 ║
╟─────────────────────────────┼───────────────╢
║ ARB Security Version Number │ 0 ║
╟─────────────────────────────┼───────────────╢
║ Version Control Number │ 0 ║
╟─────────────────────────────┼───────────────╢
║ Production Ready │ Yes ║
╟─────────────────────────────┼───────────────╢
║ Date │ 2022-11-04 ║
╟─────────────────────────────┼───────────────╢
║ Size │ 0x40000 ║
╟─────────────────────────────┼───────────────╢
║ Manifest Extension Utility │ 15.0.0.1282 ║
╟─────────────────────────────┼───────────────╢
║ Chipset Support │ TGP ║
╚═════════════════════════════╧═══════════════╝
╔════════════════════════════════════════════╗
║ Platform Controller Hub Configuration ║
╟─────────────────────────────┬──────────────╢
║ Family │ PCHC ║
╟─────────────────────────────┼──────────────╢
║ Version │ 15.0.0.1021 ║
╟─────────────────────────────┼──────────────╢
║ Release │ Production ║
╟─────────────────────────────┼──────────────╢
║ Type │ Independent ║
╟─────────────────────────────┼──────────────╢
║ TCB Security Version Number │ 0 ║
╟─────────────────────────────┼──────────────╢
║ ARB Security Version Number │ 0 ║
╟─────────────────────────────┼──────────────╢
║ Version Control Number │ 0 ║
╟─────────────────────────────┼──────────────╢
║ Production Ready │ Yes ║
╟─────────────────────────────┼──────────────╢
║ Date │ 2021-04-28 ║
╟─────────────────────────────┼──────────────╢
║ Size │ 0x1000 ║
╟─────────────────────────────┼──────────────╢
║ Manifest Extension Utility │ 15.0.30.1716 ║
╟─────────────────────────────┼──────────────╢
║ Chipset Support │ TGP ║
╚═════════════════════════════╧══════════════╝
╔════════════════════════════════════════════╗
║ Platform Controller Hub Configuration ║
╟─────────────────────────────┬──────────────╢
║ Family │ PCHC ║
╟─────────────────────────────┼──────────────╢
║ Version │ 15.0.0.1021 ║
╟─────────────────────────────┼──────────────╢
║ Release │ Production ║
╟─────────────────────────────┼──────────────╢
║ Type │ Independent ║
╟─────────────────────────────┼──────────────╢
║ TCB Security Version Number │ 0 ║
╟─────────────────────────────┼──────────────╢
║ ARB Security Version Number │ 0 ║
╟─────────────────────────────┼──────────────╢
║ Version Control Number │ 0 ║
╟─────────────────────────────┼──────────────╢
║ Production Ready │ Yes ║
╟─────────────────────────────┼──────────────╢
║ Date │ 2021-04-28 ║
╟─────────────────────────────┼──────────────╢
║ Size │ 0x1000 ║
╟─────────────────────────────┼──────────────╢
║ Manifest Extension Utility │ 15.0.30.1716 ║
╟─────────────────────────────┼──────────────╢
║ Chipset Support │ TGP ║
╚═════════════════════════════╧══════════════╝
╔═══════════════════════════════════════════════╗
║ USB Type C Physical ║
╟─────────────────────────────┬─────────────────╢
║ Family │ PHY ║
╟─────────────────────────────┼─────────────────╢
║ Version │ 11.225.276.2043 ║
╟─────────────────────────────┼─────────────────╢
║ Release │ Production ║
╟─────────────────────────────┼─────────────────╢
║ Type │ Independent ║
╟─────────────────────────────┼─────────────────╢
║ SKU │ N ║
╟─────────────────────────────┼─────────────────╢
║ TCB Security Version Number │ 0 ║
╟─────────────────────────────┼─────────────────╢
║ ARB Security Version Number │ 0 ║
╟─────────────────────────────┼─────────────────╢
║ Version Control Number │ 0 ║
╟─────────────────────────────┼─────────────────╢
║ Production Ready │ Yes ║
╟─────────────────────────────┼─────────────────╢
║ Date │ 2022-03-29 ║
╟─────────────────────────────┼─────────────────╢
║ Size │ 0x10000 ║
╟─────────────────────────────┼─────────────────╢
║ Manifest Extension Utility │ 15.0.0.1224 ║
╟─────────────────────────────┼─────────────────╢
║ Chipset Support │ TGP ║
╚═════════════════════════════╧═════════════════╝
╔═══════════════════════════════════════════════╗
║ USB Type C Physical ║
╟─────────────────────────────┬─────────────────╢
║ Family │ PHY ║
╟─────────────────────────────┼─────────────────╢
║ Version │ 11.225.276.2043 ║
╟─────────────────────────────┼─────────────────╢
║ Release │ Production ║
╟─────────────────────────────┼─────────────────╢
║ Type │ Independent ║
╟─────────────────────────────┼─────────────────╢
║ SKU │ N ║
╟─────────────────────────────┼─────────────────╢
║ TCB Security Version Number │ 0 ║
╟─────────────────────────────┼─────────────────╢
║ ARB Security Version Number │ 0 ║
╟─────────────────────────────┼─────────────────╢
║ Version Control Number │ 0 ║
╟─────────────────────────────┼─────────────────╢
║ Production Ready │ Yes ║
╟─────────────────────────────┼─────────────────╢
║ Date │ 2022-03-29 ║
╟─────────────────────────────┼─────────────────╢
║ Size │ 0x10000 ║
╟─────────────────────────────┼─────────────────╢
║ Manifest Extension Utility │ 15.0.0.1224 ║
╟─────────────────────────────┼─────────────────╢
║ Chipset Support │ TGP ║
╚═════════════════════════════╧═════════════════╝

Error: Skipped MFS partition at 0x1FFFF0, unrecognizable format!

Error: Skipped EFS partition at 0x266FF0, unrecognizable format!

Warning: Could not find any File System Platform, assuming 0x01 (ICP)!

Warning: Could not find any File System Dictionary, assuming 0x0A!

Note: This PMC TGP firmware is not in the database! You can help this
project by sharing it at https://win-raid.com forum. Thank you!

Note: This CSE ME firmware is not in the database! You can help this
project by sharing it at https://win-raid.com forum. Thank you!

Note: Multiple (2) Intel Flash Partition Tables detected!

Intel FIT Tool output:
FIT version used to build the image: 15.0.21.1549

Writing map file C:\Users\HP\Downloads\csme-15\CSME System Tools v15.0 r15\Flash Image Tool\WIN32\X1 Carbon 9th Gen Laptop (ThinkPad) - Type 20XX\X1 Carbon 9th Gen Laptop (ThinkPad) - Type 20XX.map

Loading C:\Users\HP\Downloads\X1 Carbon 9th Gen Laptop (ThinkPad) - Type 20XX\20250625_113434_SVOD4-2-bottom one.bin (Chip 2)

Error 237: Failed to load input file. Invalid input file type.

Error 42: Failed to open with processed commands.

Unable to open file: C:\Users\HP\Downloads\X1 Carbon 9th Gen Laptop (ThinkPad) - Type 20XX\20250625_113434_SVOD4-2-bottom one.bin. Reverting to default configuration.

THANK YOU!

[SMDFlea]

It`s a 20XW not K . Your bios is too corrupt to repair, just use another one with clean ME firmware

https://www.badcaps.net/forum/troubl...77#post3300577

,the 20XW, 20XX share the same bios
https://pcsupport.lenovo.com/gb/en/p...earch=PF3G1REP

[sikocan]

Thank you, I'll try.

[sikocan]

Hmm... still not good. Touch cookies.

[SMDFlea]

Hmm... still not good. Touch cookies.

Try another bios chip.

[sikocan]

Thanks for your reply - I tried a new chip today, but I'm still encountering the same issue.

What's interesting is that before I started working on the chips, the computer would turn on and display a black screen with the keyboard lights functioning, but there was no backlight, screen display, or external screen output - essentially like a zombie state. After working with the chips and restoring the original firmware, it won't boot at all anymore.

I've spent considerable time checking the continuity of every pin back to their destinations, and they're all properly connected. Even with the original firmware restored, it won't power on.

Component Details:

• U49: Contains the Windows Product key and other related features
• U89: Contains the Type-C Power delivery and other features. If this chip is not in properly or firmware is not correct, it won't reach 23V. (It's not the MOSFETs issues)

I've tried the new chip on both locations after programming, but these chips were extremely difficult to remove due to the adhesive material used. I've manually scanned the entire board under a microscope on both sides and found nothing unusual, even used powerful torch to look up closely, nothing is odd.

Current Status:

• Power button signal is functioning properly
• Orange light activates
• 23V is present with 0.04 amps powering the LED
• ThinkEngine IC is running at approximately 20 degrees, indicating it's active

Despite all this, it still won't turn on. I suspect the issue might still be firmware-related, but I'm honestly at a loss after over five hours of troubleshooting.

[SMDFlea]

Chip1 is the recovery bios , chip2 the main bios. chip2 has the windows key,the DMI will be in the EC chip.