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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 -
looking for a fully extracted (by programmer) Bios for a Dell Inspiron 17 (7786) v.1.09 or newer, so I can compare it with my own bios to check for corruption.
cheers
Dell Inspiron 17 (7786) Laptop
Service Tag: 5J0NHT2
Bios: 1.9.0
MOBO: RO 15 17 WHL 2GB MB / 18706-2
Attached;
1. My saved bios using a programmer
2. Dells Bios updater .exe (v1.16)
3. Dells Bios recovery file
4. What I got when i tried to extract the main bios .bin file from Dells Bios v1.16 exe/rcv using some .py script i found online.
5. Image of ME... -
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,
I have a Dell Inspiron P157G004 here which does everything except turn on the screen. I see a lot of activity on the bios chip's pin 5 but just a high signal on pin 2. Therefore I suspect the content of the chip.
Could somebody take a look at the attached dump?
The info from the sticker:
Reg Model: P157G
Reg Type No.: P157G004
ZU10247-21009
R-R-E2K-P157G004
DP/N: CC6TY A00
ST: JF64DS3
EX: 42276139203
Thanks in advance... -
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...
Working...
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