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hopkok started a topic Lenovo Legion 16ITHg6 NM-D721, keyboard not working, LEDs too

in Troubleshooting Laptops, Tablets, and Mobile Devices

05-04-2025, 09:35 AM
Lenovo Legion 16ITHg6 NM-D721, keyboard not working, LEDs too

Hi masters, I need your help.

I am working on Lenovo Legion 16ITHg6
Motherboard number NM-D721, no BV, no schematic but I am attaching very closes ones.

INPORTANT: My motherboard version is with IT8258 IC, that is controlling keyboard and RGB LEDs.

My problem is on UI142, +3VALW_AG is not stable, floating from 0V to 3,3V.
AGKB_PWR_EN_N signal is floating too (that is why+3VALW_AG not stable).
Power LED is not working as well, power button working well.
UI26 ??? is there any firmware too? Powered by +3VALW_AG.

Motherboard...

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hopkok replied to HP 15s-eq1904nc bios needed

in BIOS Requests ONLY!

01-30-2025, 08:01 AM
Thanks, I extracted from website, same error code, than resolder RAM slot and cleaned whole board in US cleaner, got picture, testing.

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hopkok started a topic HP 15s-eq1904nc bios needed

in BIOS Requests ONLY!

01-30-2025, 03:50 AM
HP 15s-eq1904nc bios needed

Hi Master, I am looking for bios HP 15s-eq1904nc.
Board number: DA0P5MB26A1 REV:A
S/N: 5CD1401BSG
ProID: 25N78EA#BCM
Original Bios attached,
Issue: 5long blinks, 3 fast blinks no picture, current draw 0,7Amp, all voltages pressented...

Thanks in advance....

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hopkok replied to Lenovo FE590 charging issue with RTS 5455

in Troubleshooting Laptops, Tablets, and Mobile Devices

12-18-2024, 01:01 AM
Hi Mon2, thanks for try to help, customer took his laptop, need to finish some important jobs before christmas. It should come back on January. Many thanks, have a great time, you helped me many times.

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hopkok replied to Lenovo FE590 charging issue with RTS 5455

in Troubleshooting Laptops, Tablets, and Mobile Devices

12-17-2024, 01:20 PM
Hi I did exactly the same, laptop is working, but in device manager (code 43 for USB-C), charging works normally, but if I disconnect charger, in windows still shows like still connected. I tried to flash newest BIOS, but still the same....

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hopkok replied to Lenovo NM-D562

in Troubleshooting Laptops, Tablets, and Mobile Devices

09-27-2024, 03:08 AM
Hi mon2, PQ5402 was faulty, resistance more than 20 kohms, checked in diode mode too, 0,5V drop, seemed to be OK, I tried to replace anyway and its working...thanks for hint

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hopkok replied to Lenovo NM-D562

in Troubleshooting Laptops, Tablets, and Mobile Devices

09-26-2024, 09:35 AM
ACDRV - 0V,
PR5404 - OK
PR5402 - OK
REGN - 6V

Let me double check mosfets tomorrow

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hopkok started a topic Lenovo NM-D562

in Troubleshooting Laptops, Tablets, and Mobile Devices

09-26-2024, 08:36 AM
Lenovo NM-D562

Hi Mon 2, I have got same problem, no voltage at point2. All input mosfets OK, no low resistance.

Chager IC BQ24780s has VCC presented -20V.
ACDET at pin 6 has 2,7V
ACOK pin 5 - 0V

I tried to replace charging IC, but the same.

From charged battery, its working.

Do you have any idea? Thank you...

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hopkok replied to need dell 7559 daam9amb8d0 ec+main bios

in BIOS Requests ONLY!

09-26-2024, 01:43 AM
Masters, anyone able to repair this BIOS?

Stuck at 1,6Amps, no image.
Inspiron 15-7559, daam9amb8d0, rev.D
Intel i7 CPU, Discrete GPU.
With files attached here, I did just 0,6AMps consumtion...

Thank you...

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hopkok replied to Lenovo Ideapad 5 15ARE05 NM-C811 BIOS and EC

in BIOS Requests ONLY!

09-02-2024, 04:27 AM
Hi masters, is here anyone able to have a look, if this BIOS file contain windows OEM key? Need to transplate it to new file, but no luck. Hex editor with 010000000000000001000000000000001d000000 show nothing. Can not find serial number as well, I bellieve I missed something for these newer bioses.

Ideapad 5, 15ARE05
S/N: PF2991R4

Thank you...

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hopkok replied to MSI GF63 THIN 9SCX, MS-16R31

in BIOS Requests ONLY!

06-26-2024, 07:46 AM
PCH should be new and soldered well, original one was shorted. I found, that 10Mohm R262 was missing (probably when I was taking epoxy from corners), put it back, now bootloop 0,6A goes directly to 0...could this missing resistor kill crystal?...

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hopkok started a topic MSI GF63 THIN 9SCX, MS-16R31

in BIOS Requests ONLY!

06-26-2024, 04:53 AM
MSI GF63 THIN 9SCX, MS-16R31

Hello guys, anyone able to help me with this bios, already out of mind. After PCH replacement, stucked at 0,6Amps, NO POST. Tried to clean ME with no luck (attached). Used ME analyzer, FIT Tool...

MSI GF63 THIN 9SCX
Board: MS-16R31
S/N: R1912N0014539 (hardly visible, not sure)

Thanks for help....

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hopkok replied to Lenovo Legion PRO 5 16IRX8, i9+RTX4070

in BIOS Requests ONLY!

05-22-2024, 02:55 AM
Thanks

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hopkok replied to Lenovo Legion PRO 5 16IRX8, i9+RTX4070

in BIOS Requests ONLY!

05-22-2024, 01:16 AM
Same issue bro, take 1 minute to get picture, after that FANs at full speed, than goes off. In your files, ME region is cleaned? If so, I have to look for hardware failure.

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hopkok started a topic Lenovo Legion PRO 5 16IRX8, i9+RTX4070

in BIOS Requests ONLY!

05-21-2024, 03:03 AM
Lenovo Legion PRO 5 16IRX8, i9+RTX4070

Hi masters, anyone can help me with BIOS? Long story short, spilled unit, did not start at all. Found two burned resistors in 3.3/5V step down controler. Now unit start, but it takes 30-40 second to get a picture and than FANs start run at full speed and turn off after 20 seconds, so could be ME corrupted...

Lenovo Legion PRO 5 16IRX8
S/N: PF4MN0RM
Board: NM-F091

i9-13th + RTX 4070

Both dumps attached. I tried to clean, but I am not getting picture at all, even after minute.

There is no boardview and schematic, so would like to try...

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hopkok replied to Lenovo Legion Y540-17IRH bricked, need BIOS

in BIOS Requests ONLY!

04-25-2024, 03:40 AM
Thanks mate, I was able to start machine, but still getting artifacts, gonna to look at VRAM chips.Thanks for your help anyway.

1 Photo

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hopkok replied to Lenovo Legion Y540-17IRH bricked, need BIOS

in BIOS Requests ONLY!

04-24-2024, 01:18 PM
Hi masters, I have
Legion Y540-17IRH (81Q4)
SN: PF28T3J0
MTM: 81Q400G7PB

It starts, in left top corner blinks white underscore 3 times, no Legion Logo, just backlight is on.
I tried to flash hoaca388 BIOS from post #2 and I got artifacts on screen. If I went to bios, "Discrete graphic" option was greyed out, no changes available.
Is it because this bios is for different GPU?
My BIOS attached, can anyone have a look please.

Thanks in advance....

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hopkok replied to TCL 43U6406 firmware problem

in Troubleshooting TVs and Video Sources

04-09-2024, 01:40 AM
Hi, did you solve it? Need firmware too.

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hopkok replied to HP EliteOne 800 G4 Base Model 23.8-inch Touch GPU All-in-One PC bios

in BIOS & Schematic Requests!

03-27-2024, 03:12 PM
Hi, did not work, I finally used original EC file and your last main BIOS dump. Put DMI back right in BIOS after boot. All works well now.

Many thanks for help mate!!!...

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hopkok replied to Hs461 hs561 hs761 nm-d521 rev 2.0 bios plz

in BIOS Requests ONLY!

03-21-2024, 05:10 AM
Thanks to kick me up, I moved DMI info, but did not saved it. Now its solved...

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