Lenovo NM-D031 board, no video, shuts down after 25s despite stable power rails, need bios rebuild

[DavidChunco]

Hi, I have this machine on the work bench (Lenovo IdeaPad/NM-D031/GS454/GS554/GV450/GV550 board, no DGPU).

I’m trying to diagnose a power-on issue and I would appreciate some guidance or a clean BIOS rebuild.

• Board powers on correctly
• All power rails remain stable
• No video is ever produced
• System always shuts down after ~20-25 seconds (very consistent timing) and requires full power cycle to restart.
• BIOS was previously reflashed with a known-good image and cleaned ME region (when reflashing with clean ME region it power cycles several times but then shuts down and returns to the same behaviour), i am not 100% sure if this bios image is compatible or suitable as this board has many variations.
• Without SPI BIOS installed, the board does not even light LEDs or start power-up sequence
• ADPIN / VIN: stable ~20.2V
• 3.3V_ALW and 5V_ALW are present and stable
• 3VALW_PCH and 1.8V_PCH are present and stable
• SYS_RESET# stays at 3.3V stable
• PCH_PWROK is stable
• SLP_S3# remains high
• All standby rails behave normally

• System draws progressive current (~0.65A first seconds → ~0.9A → finally 0.350A briefly before shutdown)
• CPU warms up during this time.
• VCCIO is stable (~0.9V)
• Multiple RAM sodimm modules tested with no change
• Onboard RAM disabled via BIOS (same symptom when sodimm slot is populated, without any ram board stays on indefinitely with fixed power draw)

• LCD_VDD is present (3.3V)
• Panel power rail is present (~19–20V)
• No backlight activity
• No video output (internal or external HDMI, even with internal panel disconnected)

I attach original BIOS dump (before any modifications).
Firmware chip is Gigadevice GD25B127DSIG

ideapad 3-15IIL05 Laptop - Type 81WE

Serial number: PF315B10

Model: 81WE01L7LM

Any ideas would be appreciated.

[Sparo]

Hi, I have this machine on the work bench (Lenovo IdeaPad/NM-D031/GS454/GS554/GV450/GV550 board, no DGPU).

I’m trying to diagnose a power-on issue and I would appreciate some guidance or a clean BIOS rebuild.

I attach original BIOS dump (before any modifications).
Firmware chip is Gigadevice GD25B127DSIG

Any ideas would be appreciated.

Hi You have to post the Serial Number with every single request (As per the Forum rules)
> RULES UPDATE for BIOS requests/offers *AVOID BANNING, READ BEFORE POSTING* - Badcaps

[DavidChunco]

Sadly there is no serial number or information visible on the bottom cover, however I found that if I scan the QR code on a sticker near the touchpad, loads a support webpage with the following info:

ideapad 3-15IIL05 Laptop - Type 81WE

Serial number: PF315B10

Model: 81WE01L7LM

• Processor
  1x 10th Generation Intel® Core™ i5-1035G1 Processor (Core™ i5-1035G1)
• Memory
  1x 4GB DDR4-2667
  1x 4GB DDR4 2667
• Operating System
  Windows 10 Home Single Language 64 (SP: Spanish)
• Storage
  1x 256GB PCIe NVMe
  1x 1TB 2.5” 5400RPM
• Wireless
  1x Bluetooth® 5.0; Intel® Wireless-AC 9560 2x2 AC
• Ports
  1x Combo 3.5mm Stereo Headphone Output; SD Card Reader; HDMI; 1 USB 2.0; 2 USB 3.0
• Camera
  1x 0.3MP with Dual Array Microphone
• Graphics
  1x Intel UHD Graphics
• Display
  15.6” FHD
• Included Warranty
  1x Courier Carry-in
• End of Service
  2026-04-02

[Sparo]

Sadly there is no serial number or information visible on the bottom cover, however I found that if I scan the QR code on a sticker near the touchpad, loads a support webpage with the following info:

ideapad 3-15IIL05 Laptop - Type 81WE

Serial number: PF315B10

Model: 81WE01L7LM

Use this BIOS file and transfer the DMI and Windows product key from the old BIOS to the new one at the mentioned offsets
Copy the range from 622000 to 623FFF from your original backup and paste it into this one > https://www.badcaps.net/forum/troubl...28#post3865928

[DavidChunco]

Use this BIOS file and transfer the DMI and Windows product key from the old BIOS to the new one at the mentioned offsets
Copy the range from 622000 to 623FFF from your original backup and paste it into this one > https://www.badcaps.net/forum/troubl...28#post3865928

Just flashed your file with DMI data transferred from my original backup, but same behaviour, black screen and shuts down after 20-25 seconds

[Sparo]

Just flashed your file with DMI data transferred from my original backup, but same behaviour, black screen and shuts down after 20-25 seconds

You can also try flashing the EC from the same post I linked earlier
Or try flashing an older BIOS version (EMCN40W) > https://www.badcaps.net/forum/troubl...60#post1478760