I downloaded and extracted the firmware pack from Hp but there are 3 bin files for different ROM families (don't know which one to use) plus their size is bigger than 16 MB which I can't edit.
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Re: Hp EliteDesk 705 G4 SFF bios required.
(Q16) is the right one. You must delete the extra data (In the Beginning & in the End), then move your DMI.
The attached file is ready now for flashing.
Serial Number: MXL92258DD.Attached FilesPremium supporters get full download access and other benefits.
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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,
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>>>>> click on this link to donate via PayPal. <<<<<
Every donation made will go towards server fees and maintenance costs.
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Re: Hp EliteDesk 705 G4 SFF bios required.
i have also this pc and my motherboard is brick plz tell me which program software you use and i have ch341A it is ok to use this ?,plz briefly explain your method for meComment
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Re: Hp EliteDesk 705 G4 SFF bios required.
There are 2 16mb bios ics (25Q128) in ur motherboard. Look for the main bios ic and take it out. Read and save ur original bios using CH341A. If ROM family of ur bios is Q16 then download and extract the bios in post#2 for reprogramming.Comment
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Hello! I also have a problem with the same PC. Please help me solve the problem too.
I bought a new Radeon RX6400 graphics card to replace the stock R7 430. I chose this card because it is low profile, low power (R7 430 - 50W, RX6400 - 55W). After installation, the PC could not turn on. The power LED lights up for a few seconds and turns off. And it repeats itself all the time. I installed a stock video card, the PC booted up as always. Installed the RX6400 - reboots again. Then I reset the Bios settings. After that, the PC began to signal an error with a power indicator - 3 long red flashes, 3 short white flashes. I installed a stock video card, the situation is the same. I checked the R7 430 and RX6400 on another computer - they work fine. But my computer doesn't work with any of the cards anymore. I tried resetting the Bios settings again, but the situation does not change.
I read the Bios firmware - I have Q19 (attached the saved firmware and the corrected Q19 firmware from the website). I tried to flash Q19 with firmware from the official website - the PC does not start. The power indicator is white. I flashed the saved firmware - it still won't start, the power indicator is white.
I bought a new Bios chip and flashed it - the PC does not start. I have no idea how to fix it anymore.Comment
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You must post the PC serial number - https://www.badcaps.net/forum/troubl...before-posting
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HP Elitedesk 705 G4 SFF. Ryzen 7 pro 2700.
Product number: TZW28EA#ACB
Serial number: CZC944CPJJComment
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Hello, could you please help me? I also have HP Elitedesk 705 G4 SFF. The bios can't work, I downloaded and extracted the firmware pack from Hp but there are 3 bin files for different ROM families, I don't know which is the right one...
The file size is bigger than 16 MB which I can't edit.
Product number: 6CS09EC#AB2
Serial number: 4CV9308Q1LComment
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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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Hello I have a problem with Hp Elitedesk 705 G4. I try to start the pc and it didn't post or boot anything and the fans were working in full speed. So after some CPU, fans , ram , ssd tests I suspect a corrupted bios.
I manage to read and save the stock file from the MX25L12873F chip, with ch314a. But now I can't program and update the chip because the file is slightly larger and also it doesn't contain the pc information (name, s/n etc).
Pc details:
Name: HP Elitedesk 705 G4 MT. Ryzen 5 2400g.
Product number: 3AB55AV
Serial number: CZC932CMJD
I provide you the backup file from bios read and the 3 files from the sp155445.exe (bios file that HP gives for my serial number). With the HxD I found the Q06 reference in hex, maybe that helps.
Can you help me to get a right bios file for programming ?Comment
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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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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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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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Hello everyone, I am looking for help as I am struggling to remove lost BIOS Admin password on an HP EliteDesk G6 800 series desktop. I wanted to reset the vPro remote control IP kvm for homelab use.
Here is the hardware identification specs:
HP EliteDesk 800 G6 Desktop Mini PC
Intel(R) Core(TM) i5-10500 CPU @ 3.10GHZ 16384 MB RAM
BIOS ver S21 Ver. 02.05.01 01/05/2021
Born on date: 07/26/2021
SN MXL11841GN
SKU 3X8V9UCHABA
UUID 8116E79EF6FFE94DB0B98A3188270C5C
SYSTEM BOARD ID 8710
SYSTEM BOARD CT NUKBER PJLHQ0A8JF236L... -
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 looking for help to make sure I am on the right track to remove lost BIOS Admin password on an HP EliteDesk G6 800 SFF. I recently purchased this on ebay and the seller is willing to accept a return but I have already installed my new HDs, NVME, and setup proxmox so I would like to keep it.
Here is the hardware identification specs:
HP EliteDesk 800 G6 SFF
Intel(R) Core(TM) i5-10500 CPU @ 3.10GHZ 16384 MB RAM
Serial No: MXL1223499
Product No: 26S74UT#ABA
BIOS/IC chip seems to be the 4 pin XMC XM25QH128A (3.3v). However most... -
Hello guys,
I stupidly tried to read out my BIOS & EC flash (with a clamp). This didn't work, I only read FF's. But after this operation, the PC is not longer turning on, just beeps 5 times (and blinks red) then 2 times (blinks white). The manual says this is the error code for: "The embedded controller cannot find valid firmware.".
I think it locked itself because of my experiment. Is this fixable? I now removed both chips from the board and dumped them, I attach the files in this post hoping someone can help me fix my stupid error. Thanks so much in advance anyone... -
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Battery pack had been used on about 3 or 4 occasions for powering a cordless lawnmower. I was wanting to use this battery pack again recently, but on checking the battery charge state via the battery pack test button, there was no LED indication at all of charge state which suggested the pack was fully discharged.
I found this to be odd as I usually fully recharge battery packs shortly after use. So either the pack developed some sort of fault which completely discharged the pack cells (after recharging),...
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