ACER MODEL: AN515-55-73G9
S/N: NHQ7MEF004034141583400
SNID: 03408226434
-
Hello everyone!
I needed help to clean the ME region of this original Bios Dump.
I just replaced PCH, original one was shorted and had the die cracked.
Ive quickly tested and it charges battery, turns on and off, but does not POST.
Hope all is good with PCH and just needs a clean me
Heres the info of the device and board:
Motherboard FH51M LA-J871P Rev: 1B
ACER MODEL: AN515-55-73G9
S/N: NHQ7MEF004034141583400
SNID: 03408226434
Attached File bkp original dump
Thanks in advance!
Leave a comment:
-
-
-
-
Hello. Need an engineering BIOS for Acer Nitro 5 FH51M LA-J871P REV 1B. To bypass Subsystem ID check. Help pleaseLeave a comment:
-
-
Hello friends, how are you?
I need help cleaning the ME region of my Dump file.
This equipment is going through a PCH replacement, and I'm installing a new PCH today.
LA-L181P Motherboard Rev: 1B
ACER MODEL: AN515-57-79TD
S/N: NHQESAA005225086703400
SNID: 225034416Leave a comment:
-
-
It is because of bootguard. You can only use a PCH from an acer donor board with the same bootguard settings or use a PCH with no bootguard, then if the bios has bootguard the bios can be modified to disable bootguard. You can`t put a PCH with bootguard from a different brand and modify the bios, you would have to add the OEM key etc, not possible.Leave a comment:
-
Hello friends, I have a question, whenever I change a PCH on an Acer notebook, the machine does not turn on if the PCH is used and removed from a different brand notebook, it only works with a new PCH or one removed from another Acer, any chance of a change in the bios making it work? I have this board here (la-j871p), I got the PCH from a Lenovo, but it doesn't work, as expected, I tried different bios, I have the original bios.Leave a comment:
-
Can someone upload BIOS file for my Acer Nitro laptop..black screen, just keyboard light. Bought new BIOS IC and have programmer tool. Done that before but i cant find bios file
AN517-52-76YU
SN: NHQ8KEZ008022054043400
SNID:02202150834
MODEL:N20C2Leave a comment:
-
HELLO, PLEASE HELP ME WITH THIS BIOS, IT DOES NOT ENABLE VCC CORE AND VCC GT
FH51M LA J871P REV 1B 2020 06 04
AN515 55 576K
SN NHQ7MAL00J051087433400
SNID: 05103462734Leave a comment:
-
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'm here to ask for help troubleshooting an issue with my Acer Nitro 5 An55-515. Board number fh51m LAJ871P .
The laptop turns on without any image, and after inspection, I noticed the 1.2V voltage was reading 8V spikes. The PQM1 MOSFET's gate was shorted to the source.
I replaced PQM1, PQM2, and PUM1. After turning on the machine, the 1.2V voltage appears correctly for about 1 minute, but after that, PQM1 shorted again. The MOSFET and controller assembly has already been replaced twice and continues to blow. I can't understand what's going on. I should also add... -
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.
-----------------------------------------------------------------------------------------
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, 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... -
Hello, I have an old Dell G3 3579 (ST: 2WQ7LP2-8FC8) with a newer 8FC8 BIOS password. I have successfully attached to the flash chip (W25Q128JVSQ) on the motherboard with a CH341A programmer and made several modifications using Intel FIT (e.g., allow software SPI write) without bricking. I was also able to boot to a modified GRUB shell where I attempted to edit many BIOS security related options like BIOS Guard/Lock, Flash Signature Override, ME FW Image Re-Flash, etc.
Unfortunately, some of these modifications like to Intel BIOS Guard failed because it is fused into the PCH. Also,...
Leave a comment: