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Thinkpad X1 Yoga 4th gen
Model: 20QGGS02E00
S/N: PF1SG5DQ
bios help pleaseComment
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Any donations to badcaps are welcome, click this link to donate . Thanks to all the supporters
https://www.badcaps.net/donateComment
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I am now trying to replace the BIOS Region in my Dump by the BIOS downloaded from Lenovo.
I have identified the correct files for my machine (N2HETxxW) and found 2 files, FL1 and FL2.
As I assume, FL2 is for the EC and FL1 contains the main BIOS.
I just cannot figure out, what to do with the FL1 file. There are many guides out there, that start with removed a small section in the beginning and then ending up with the BIOS file. That does not work for me, since the FL1 is a lot smaller than the dump.
Could someone please provide a guide as to how to proceed with these files?
Thanks in advance!
Attached is the Dump as well as the FL1 and FL2 files from the Lenovo Update Package.
Type: 20QG-S56D00
S/N: PF-1C1BV9Comment
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Hello, my device is a yoga x1 th4. The device works with fan, the keyboard flashes, and the white power button, but there is no image display at all. The attached file. Please help.
FX490 NM-B861
Rev: 1.0
2019-03-28Comment
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Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests all donations are welcome, click:
>>>>> https://www.badcaps.net/index.php?pageid=donate1 <<<<<
Every donation made will go towards server fees and maintenance costs.Comment
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Got one with no display issue.
Lenovo X1 YOGA 4TH GEN
board: NM-B861 rev 1
SN: PF1VTB8Q
MODEL: 20QGS15E00
TYPE: 20QG
backup attached... Thanks...Comment
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Hey guys, I need bios
power on but no display
X1 Yoga 4th Gen (Type 20QF)
MODEL: 20QF000YAD
board : FX490 NM-B861 REV 1.0
(intel Core i7-8565U)
SN: PF-1XXFPB (ı am not sure but on the back it writes)
Comment
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X1 yoga 4th generation
FX490 NM-B861 REV 1.0
TYPE 20QF-0015US
S/N PF-1S98JG
Absolute is on. Please, remove it
Thanks,Comment
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Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests all donations are welcome, click:
>>>>> https://www.badcaps.net/index.php?pageid=donate1 <<<<<
Every donation made will go towards server fees and maintenance costs.Comment
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Hello everyone!
Could someone please help me removing the administrator password from my Lenovo ThinkPad X1 Yoga Gen 4 BIOS file?
Couldn't upload the .bin file here, so I've put it on a public link:
*******
Thanks heaps!Comment
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The pass is in the EC https://www.badcaps.net/forum/troubl...83#post3723483
Post your EC backup in a zip or rar ,attach it to your post, don`t post external links please. The laptop serial number should be posted with all bios/EC requests.
Type the laptop serial number, full name and model, motherboard model, etc.
read the forum rules..https://www.badcaps.net/forum/troubl...before-posting
Badcaps relies on your donations to pay for hosting ( Currently AWS is $8000 alone) site advertising goes nowhere near to covering these costs. To keep everything that you and i rely on for free,Please consider donating, thank you.Comment
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My apologies! I will do as advised.
Laptop name: Lenovo ThinkPad X1 Yoga Gen 4
SN: PF-1XWEMG
Motherboard: FX490 NM-B861 Rev 1.0
Can somebody please tell me if the MEC1663 chip is on the bottom side of the motherboard? Cannot find it on the top. The schematics can be found here:
https://www.badcaps.net/forum/troubl...32#post1680232
Should I expect to find something as described here?
https://www.badcaps.net/forum/troubl...ssword-removal
Comment
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I have a Lenovo x1 Yoga gen 4. I flashed bios, now when I plug power, power button blink 3 times. I putted back original bios dump but I get same thing. How can I fix this problem?Comment
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Need Clean BIOS/EC Bin File for Lenovo ThinkPad Yoga 11e - Stuck with 0275 Error CMS
Hello everyone,
I am attempting a repair on a Lenovo ThinkPad Yoga 11e that is currently stuck at boot with the error: "0275 error CMS" even after setup new bios battery and will not allow me to enter the BIOS/Setup.
This is a critical issue that I believe requires flashing the BIOS chip directly using a programmer (e.g., CH341A/RT809H), as standard software updates or resets are not possible.
I have opened the laptop and identified the main BIOS chip... -
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 -
Hello everyone,
I am requesting urgent assistance to unbrick my laptop, a rebranded TongFang GK7MRFR chassis. The laptop is completely dead following a faulty in-OS EC flash attempt.
I have successfully used a CH341A programmer and can read/write/verify both flash chips, but using my backups/extractions has failed to restore power. The root cause is likely a corrupted Intel Management Engine (ME) region or an incompatible EC/BIOS pairing. System & Hardware Details- Barebone / Chassis: TongFang GK7MRFR
- MB: MB: GK5MP5X V1.0 Prod :GK5MRFV10T04201310281
- Rebrand: PC Specialist
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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... -
Sorry for the long story. I have a Dell Latitude 5530 (i7) laptop (South Peak 15 MLK MB DDR4 203102-1 FK8VG$JA) with an admin BIOS password that I want to remove. Service Tag: HYKFPT3. Other than that the laptop worked OK.
I found a CH341A Black and went looking for the BIOS chip on the motherboard. After trying to read one chip that was a firmware chip but not the BIOS I think I found the BIOS chip labeled Winbond 25Q256JVEN. Altogether I think I found 4 different firmware chips in the laptop. The BIOS chip is a WSON8 6x8. I used the CH341A, NeoProgrammer, and a cheap pogo pin clip...
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