Dell Latitude 5520 Bios Password unlock

[Thoa]

The bios chip must be unsoldered from the board before writing or reading..
do not use the clip, you may have errors..if you do not have anything to unsolder it with,
solder wires between the programmer and the bios chip..

here is a video for example..https://www.youtube.com/watch?v=DWWi...nnel=ThisIsHow

Thats exactly what i tryed to avoid. my solder-skills are really not good. i´d love to use the clip.

[Thoa]

its much too tiny for me

[Thoa]

OK...now i see... the clip does not work with this IC... unfortunately. I will organize a solderstation tomorrow/later.. and some glasses

[hdn1962]

Dell Latitude 5520 bios password + absolute
I need to remove bios password + absolute
Board# SouthPeak15 TGL MB 8L
19819-1
82G7H $ JA
S/T # GCYSP93
Thank you.

[hoaca388]

Dell Latitude 5520 bios password + absolute
I need to remove bios password + absolute
Board# SouthPeak15 TGL MB 8L
19819-1
82G7H $ JA
S/T # GCYSP93
Thank you.

Password remove and disable absolute.

[hdn1962]

Work excellent. Thanks, hoaca388
I will send some $ for coffee and donuts.

[hoaca388]

Work excellent. Thanks, hoaca388
I will send some $ for coffee and donuts.

Thank you !

[checka]

Hi everyone!
Dell Latitude 5520 ... need to remove admin password
Board# SouthPeak15 TGL MB 8L 19819-1
Thanks

[hoaca388]

Hi everyone!
Dell Latitude 5520 ... need to remove admin password
Board# SouthPeak15 TGL MB 8L 19819-1
Thanks

You MUST:

• Read BIOS guides, methods, resources and tools
• Try the method at BIOS guides, methods, resources and tools before requesting help
• Explain you were not able to succeed with the methods at BIOS guides, methods, resources and tools
• Use search function in case someone already answered your request
• Post under a related thread if it exists
• Provide the full machine model number, serial number (or Service tag, SNID) and the board model number (see https://www.badcaps.net/forum/showthread.php?t=88758 ) ,The serial number, make, full model number, motherboard model and revision (except QR codes) must be written/typed at your request as per the rules. Not as a picture, part of the file name and so on.
• Name your thread with make, full model numbers and request
• Provide a BIOS/EC dump if possible
• Attach files directly to your post instead of linking to external websites
• Post what the problem is, be specific - black screen, no boot, running slow, password. Do NOT post "clean me", "clear bios", "clean bios", "fix bios", "bios need" or other such terms

[MONRRO]

NEED TO RESET THE PASSWORD IN THE BIOS HELP
dell latitude 5520
Service Tag is:51VBTG3-8FC8
EX:109969973331
THANK YOU[/QUOTE]

[peste]

NEED TO RESET THE PASSWORD IN THE BIOS HELP
dell latitude 5520
Service Tag is:51VBTG3-8FC8
EX:109969973331
THANK YOU

[/QUOTE]

post the original contents of the bios chip..

[29biosbricked]

Hi everyone!
Dell Latitude 5520 ... need to remove admin password
Board# SouthPeak15 TGL MB 8L 19819-1
Thanks

try

[mahlon simwnaja]

try more....

Good day
I'm back again haha

So, after a long time without touching the machine is just suddenly decided to work.
The bios file TGL_MF works perfectly and also the one provided by LAPFIX post 648 is also working, I think the advice from hoaca388 worked.

THANK YOU ALL .

Now I have a little favor to ask. Please change service tag to 4X742B3 or help me with clean bios file.

[antoinedu98]

I followed the Dell website guide to get the service tag. Says it should be labeled EX on the sticker. Here's all the codes from the sticker but I think it's actually the ST one. Could have sworn I saw the bios say 6P13SL3 code followed by 8FC8 or similar.

MFG YR:2022
ST:6P13SL3
EX:14574205047

Hello, I'm new here and I tried to use the .bin file on my Dell Latitude 5520. I tried to copy it on USB drive and boot on it but it didin't work. I also tried to create a bootable USB drive using the .bin but didn't work either. Could you please explain how am I suppose to use the .bin file on my computer?

Your support is much appreciated!

Hello, I'm new here and I tried to use the .bin file on my Dell Latitude 5520. I tried to copy it on USB drive and boot on it but it didin't work. I also tried to create a bootable USB drive using the .bin but didn't work either. Could you please explain how am I suppose to use the .bin file on my computer?

Your support is much appreciated!

Re: Dell Latitude 5520 Bios Password unlock

Thanks you working perfect, this is from update.exe or patched ?

How did you do? Can you explain how to use the .bin files on my computer please

[Thoa]

The bios chip must be unsoldered from the board before writing or reading..
do not use the clip, you may have errors..if you do not have anything to unsolder it with,
solder wires between the programmer and the bios chip..

here is a video for example..https://www.youtube.com/watch?v=DWWi...nnel=ThisIsHow

I am now able to read the chip. But when i try to save the bios, the file has just 4mb or less... depends on the chip-setting. i tryed to read the biggest winbond chip-setting but i cannot find 32MB. The Output-File should be 32MB, shouldn´t it?

And the CH341H cannot detect the Chip... I think its broken

[SMDFlea]

I am now able to read the chip. But when i try to save the bios, the file has just 4mb or less... depends on the chip-setting. i tryed to read the biggest winbond chip-setting but i cannot find 32MB. The Output-File should be 32MB, shouldn´t it?

And the CH341H cannot detect the Chip... I think its broken

The Auto-detect setting on the CH341A has always been poor. With the original software if the chip is not in the support list it can default to a 1MB chip or something else, not good.. .Which software are you using, what is the chip part number

[Thoa]

Its a XMC 25RH256CXIQ PPF83600 01 2128U Chip. I tryed to use the CH341A Programmer-Software ... but there is only 1 Chip in the Chip-List with 32MB and didnt work as well to get a 32MB-File after safeing the file. I can read and get data, and i can verify successfully. So i think the Chip is working fine.

The Problem, i think sits in front of the pc

[SMDFlea]

Its a XMC 25RH256CXIQ PPF83600 01 2128U Chip. I tryed to use the CH341A Programmer-Software ... but there is only 1 Chip in the Chip-List with 32MB and didnt work as well to get a 32MB-File after safeing the file. I can read and get data, and i can verify successfully. So i think the Chip is working fine.

The Problem, i think sits in front of the pc

Use NeoProgrammer software and choose W25Q256FV - https://www.badcaps.net/forum/troubl...49#post3171449

[Thoa]

Use NeoProgrammer software and choose W25Q256FV - https://www.badcaps.net/forum/troubl...49#post3171449

OK... Thank you. Worked. At least to get the input of the chip. I used a pogo-pin-tool to bypath soldering. Reading was successful, verifying not. But its a contact problem, because the abortion was at different positions. Also i got an Error immediately when i tryed again. Maybe you can see a coruption of the bios-file or a clean file. I am going to find a way to verify tomorrow successfully and a way to hold contact to write to the chip.

Thanks for the support SMDFlea and the hole community. CU tomorrow

[b4rdock]

OK... Thank you. Worked. At least to get the input of the chip. I used a pogo-pin-tool to bypath soldering. Reading was successful, verifying not. But its a contact problem, because the abortion was at different positions. Also i got an Error immediately when i tryed again. Maybe you can see a coruption of the bios-file or a clean file. I am going to find a way to verify tomorrow successfully and a way to hold contact to write to the chip.

Thanks for the support SMDFlea and the hole community. CU tomorrow

here is file unlocked