Dell Latitude 5400 bios request
Collapse
X
-
Hello everyone!
Could someone please help to delete the password 8CF8 suffix?
Dell Latitude 5400
edc41 la-g891p rev.1 A00
Service Tag : 629B0R2Attached FilesComment
-
Attached Files
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Mį»i khoįŗ£n quyĆŖn góp cho Badcaps Äį»u Äược hoan nghĆŖnh . Trį» thĆ nh ngʰį»i į»§ng hį» Badcaps >>>>> nhįŗ„p vĆ o liĆŖn kįŗæt nĆ y Äį» quyĆŖn góp <<<<< Cįŗ£m Ę”n tįŗ„t cįŗ£ những ngʰį»i į»§ng hį» . -------------------------------------------------------------------------------------------------------------------------------------------------------------Comment
-
Hi,
I have been given a Dell Latitude from a family member that I'm trying to recover into a useable laptop, as it's currently password protected and completely locked down. I have tried to obtain a viable password from https://beta.bios-pw.org/ using the laptop serial number (with suffix xxxxxxx-8FC8) but nothing would work for me. So now I am trying to read the current BIOS off the device before attempting to follow the guidelines on this forum to refresh the BIOS to something that works again. However, I'm having real problems reading the existing BIOS from the chip as it's a WSON8 (very low-level) IC with pins that are very difficult to get at. I have a XGecu TL866 II Plus programmer that perports to support the chip - a GigaDevice GD25B256D WSON8.
With a bit of ingenuity, and a lot of patience, I have 3-D printed an adapter that sits tightly on the chip, holding 1mm pogo pins to each leg of the IC. With this wired-up to my programmer and a bit of trial and error, I finally got it to (apparently) perform a full read of the chip which appeared to complete successfully. The software I'm using is Xgpro v12.67. But when it completes the read there is nothing other than "FF"'s in the buffer. So I assume that read was not successful. Then I wondered whether the programmer was actually supplying VCC to the chip when attempting the read. So I checked, and it was not. So I then connected an external 3.3v power supply across the relevant pins (pin 4 ground, pin 8 Vcc) and tried again. Unfortunately, there was no change. The programmer indicated it had successfully read the chip but the buffer again had no readable contents.
So I'm somewhat stuck with what to try next and need some help from the experience of this forum. Am I appraoching this in the right way? Should it be possible to read the BIOS from the chip in-situ? Would you expect the programmer should be powering the chip for read/write? I have considered attempting to de-solder the chip from the board to perform the BIOS read/write but have read on the forum that the laptop motherboard is highly multi-layered and requires a LOT of heat to remove. Unfortunately, I only have a cheap-and-cheerful hot air flow solder station. So probably not up to the job. And I don't want to damage the board attempting this, unless a last resort. Even then, I don't (yet) have a WSON8 native adapter for my programmer. So what would you guys suggest?
Very much appreciate any insights into what I'm doing wrong, what I could/should do different, or any other pointers you can offer to get me over this hurdle.
TIA
Comment
-
Hi,
I have been given a Dell Latitude from a family member that I'm trying to recover into a useable laptop, as it's currently password protected and completely locked down. I have tried to obtain a viable password from https://beta.bios-pw.org/ using the laptop serial number (with suffix xxxxxxx-8FC8) but nothing would work for me. So now I am trying to read the current BIOS off the device before attempting to follow the guidelines on this forum to refresh the BIOS to something that works again. However, I'm having real problems reading the existing BIOS from the chip as it's a WSON8 (very low-level) IC with pins that are very difficult to get at. I have a XGecu TL866 II Plus programmer that perports to support the chip - a GigaDevice GD25B256D WSON8.
With a bit of ingenuity, and a lot of patience, I have 3-D printed an adapter that sits tightly on the chip, holding 1mm pogo pins to each leg of the IC. With this wired-up to my programmer and a bit of trial and error, I finally got it to (apparently) perform a full read of the chip which appeared to complete successfully. The software I'm using is Xgpro v12.67. But when it completes the read there is nothing other than "FF"'s in the buffer. So I assume that read was not successful. Then I wondered whether the programmer was actually supplying VCC to the chip when attempting the read. So I checked, and it was not. So I then connected an external 3.3v power supply across the relevant pins (pin 4 ground, pin 8 Vcc) and tried again. Unfortunately, there was no change. The programmer indicated it had successfully read the chip but the buffer again had no readable contents.
So I'm somewhat stuck with what to try next and need some help from the experience of this forum. Am I appraoching this in the right way? Should it be possible to read the BIOS from the chip in-situ? Would you expect the programmer should be powering the chip for read/write? I have considered attempting to de-solder the chip from the board to perform the BIOS read/write but have read on the forum that the laptop motherboard is highly multi-layered and requires a LOT of heat to remove. Unfortunately, I only have a cheap-and-cheerful hot air flow solder station. So probably not up to the job. And I don't want to damage the board attempting this, unless a last resort. Even then, I don't (yet) have a WSON8 native adapter for my programmer. So what would you guys suggest?
Very much appreciate any insights into what I'm doing wrong, what I could/should do different, or any other pointers you can offer to get me over this hurdle.
TIA
Due to a lack of donations, server free space at a critical level, and possible closure of Bios Requests all donations are welcome, click:
>>>>> https://www.badcaps.net/index.php?pageid=donate1 <<<<<
Every donation made will go towards server fees and maintenance costs.Comment
-
Hi Guys,
Finally received my T48 to play with it a bit. I'd like ask you to help with Dell 5400 dump with 8FC8 pass.
Bios chip is GD25B256DYIG
MB: EDC41 LA-G891P Rev 1.0 (A00)
ServiceTag: G7PL633
Tried with Rex98 patcher, removed pass but made something wrong with ME - loud fan, highcpu freq. Not happy with it š.
Attached FilesComment
-
-
original dump no diplayComment
-
Latitude 5400
Service Tag: FKZP433āAttached Files
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Mį»i khoįŗ£n quyĆŖn góp cho Badcaps Äį»u Äược hoan nghĆŖnh . Trį» thĆ nh ngʰį»i į»§ng hį» Badcaps >>>>> nhįŗ„p vĆ o liĆŖn kįŗæt nĆ y Äį» quyĆŖn góp <<<<< Cįŗ£m Ę”n tįŗ„t cįŗ£ những ngʰį»i į»§ng hį» . -------------------------------------------------------------------------------------------------------------------------------------------------------------Comment
-
Hi Guys,
Finally received my T48 to play with it a bit. I'd like ask you to help with Dell 5400 dump with 8FC8 pass.
Bios chip is GD25B256DYIG
MB: EDC41 LA-G891P Rev 1.0 (A00)
ServiceTag: G7PL633
Tried with Rex98 patcher, removed pass but made something wrong with ME - loud fan, highcpu freq. Not happy with it š.
Thanks anyway!Comment
-
Comment
-
thinks it work no passwordComment
-
Dell Latitude 5400 bios request
āHello everyone
Please help me. I'm having a problem with my computer freezing". I need a working BIOS.
Thanks in advance
Dell 5400
Service Tag : 244K6Y2
MotherBoard : LA-G891P REV:1.0 (A00)Comment
-
DELL 5400 LOCKED.rar
PLEASE HELP ME TO UNLOCK
Dell 5400
Serial : G705L13
Service Tag : G705L13
Board : LA-G891PāComment
-
show some time red green and blue color but no display plz fix my bios
Dell LATITUDE 5400
Serial : FFWLM33
Service Tag : FFWLM33
Board : LA-G891PāAttached FilesComment
-
Attached FilesComment
-
Related Topics
Collapse
-
by jhanraHi there masters, recently i got a dell 5400 chromebook and wanted to install windows, i searched the internet and i found out other people also wanting a UEFI bios for this model, i searched there is a R/W legacy, but there are bugs like keyboard/trackpad not working, and hard to install.
so i decided to try to port one, this bios is based on dell 5400 windows version, i am testing this bios for a week now an found only a little to no bug at all in windows 10, or only a minor issue
in windows 11 sound driver compatibility, but overall its ok, for me i can deal with it, š š š ...-
Channel: BIOS Requests ONLY!
-
-
by gizahaDell latitude 5580, motherboard cdp 80 la-e151p
3 amber 3 white blinks. Dell website sais it's problem "bios recovery" and suggested solution "recovery image not found"
(from here https://www.dell.com/support/manuals...e7a&lang=en-us)
I try plugging charger while pressing ctrl+esc, machine turns on, nothing and after 20 seconds it gives 3 amber 3 white blinks again.
Since ssd is replaced and had clean install windows, i've... -
by TripTopHi
i have dell latitude E7270 with following symptoms:
- takes long time to restart.
- sometimes powers on and then off
- sometimes while working it just dies,
From googling online bios clean could possible resolve this?
i was able to save bios and was going to try bios clean myself but get an below error when i drop it in ME analyzer.(unsure whether this sometimes occurs or could be due to bad/corrupt bios)
As ME analyzer gave me an error i just decided to write bios with a cleaned bios from E7270 bios post.
I reinstall...-
Channel: BIOS Requests ONLY!
-
-
by DavidChuncoHi, I hope someone can help me with this, my Dell G15 Ryzen Edition does not post anymore (black screen, no Windows boot, no BIOS screen) after Windows Update pushed what appears to be a buggy bios image, I've tried the following with no success:
- Receive help from Dell Support (it is out of warranty).
- Disconnect machine from AC power and battery overnight.
- BIOS recovery process
- Connected external display via HDMI
- Disassembled machine and found bios chip, its a Gigadevice 25LR128DSIG (GD25LR128DSIG), at first I tried to get it detected by CH341A (with...-
Channel: BIOS Requests ONLY!
-
-
by Loli PopuHello guys ,i have a dell latitude 5590 with f411p bios,this laptop has bios password ,i tried to read the bios(winbond 25q128jv) with ch341 but when goes to verify give error ,it said doesnt match .After this i flashed another bios which is cleaned and then the laptop was dead ,i tried to turn on but only white light in the buton power turned on several times and then no display at all .I had a backup and flashed again the original bios ,but this time the laptop will not turn on at all ,no light nothing,the bios original bios that i flashed was having verify error when i verified with ch341 ,i...
-
Channel: BIOS Requests ONLY!
-
- Loading...
- No more items.
Comment