Dell Latitude 5430, LA-L591P Computrace setting unlock

[PycLaH]

Dell Latitude 5430 ,LA-L591P can anyone check bios plz, and remove computrace
Thx

[PycLaH]

Symptoms:

power button lights comes on, charging light comes on white(charger plugged in), no display , no fan spin. after a while i have few white blinks (charging light) 4 times , and power lights goes off.

Please help - This is Dell Latitude 5430 Laptop . i5 16GB ram, STAG: FB1Z0T3

+ anyone can check my bios file dump and set it up to manufacture mode . no password in the dump.

Thanks

[PycLaH]

Thank you for reply, need dump it. text you shortly
Regards,
Ruslan

[PycLaH]

this is 16MB IC - 25R128JV
Thank you

[Atillaoracle]

Symptoms:

power button lights comes on, charging light comes on white(charger plugged in), no display , no fan spin. after a while i have few white blinks (charging light) 4 times , and power lights goes off.

Please help - This is Dell Latitude 5430 Laptop . i5 16GB ram, STAG: FB1Z0T3

+ anyone can check my bios file dump and set it up to manufacture mode . no password in the dump.

Thanks

I have exactly the same issue. It was working, I read the chip and solder back now it's not working. And the file is 16MB when I Archie it's only 67 KB.

can someone help?

[PycLaH]

yes, very similar issue.

[hoaca388]

this is 16MB IC - 25R128JV
Thank you

File corrupted.

[PycLaH]

Please can you fix it ? bios 16MB file corrupted ? or smaller one ?
Could you send me clean files so i can restorer my laptop ?
please help help help

[SMDFlea]

Please can you fix it ? bios 16MB file corrupted ? or smaller one ?
Could you send me clean files so i can restorer my laptop ?
please help help help

Why is the file you posted corrupted ? .What programmer are you using,and the software version.Are you using a clip or have you desoldered the chip. Are you using the programmers Auto-detect setting,and if so does the detected chip match with the chip part number.Is the chip in the support list.

[PycLaH]

NeoProgrammer, Taking Chip of the board, autodetect + Match with the chip part number,. if u look inside the file its looks corrupted. and its not me who made this decision.see previous post
thx. and chip is in the list too.

[hoaca388]

NeoProgrammer, Taking Chip of the board, autodetect + Match with the chip part number,. if u look inside the file its looks corrupted. and its not me who made this decision.see previous post
thx. and chip is in the list too.

Latitude 5430


Service Tag: FB1Z0T3

[Valentin Florin Benciu]

Hello all,

Managed to take out the bios chips and extracted the bins.
laptop / DELL LATITUDE 5430 /
motherboard / DHDB42 LA-L591P /
cpu / INTEL i7 12TH GEN /

service tag / #5TN3RV3-8FC8
spi chip / WINBOND 32MB@WSON8
winbond 25R128JVSN
and
winbond 25Q256JVEN

I need to remove the BIOS password and the computrace.
Can anyone help me pls?

Thank you.

[danito]

Hello all,

Managed to take out the bios chips and extracted the bins.
laptop / DELL LATITUDE 5430 /
motherboard / DHDB42 LA-L591P /
cpu / INTEL i7 12TH GEN /

service tag / #5TN3RV3-8FC8
spi chip / WINBOND 32MB@WSON8
winbond 25R128JVSN
and
winbond 25Q256JVEN

I need to remove the BIOS password and the computrace.
Can anyone help me pls?

Thank you.

try

[Valentin Florin Benciu]

try

this covers both problems?
the UC6 bios chip doesn't need anything to update it?

[danito]

this covers both problems?
the UC6 bios chip doesn't need anything to update it?

Just UC2. Don't touch the other.

[jadao]

Hello, can someone help unlock this bios please?

Service tag: 3Y6GWT3
HDB42 LA-L591P Rev: 1.0 (A00) 2022-01-13

Attached UC6 and UC2 dumps
Thanks in advance!

[hoaca388]

Hello, can someone help unlock this bios please?

Service tag: 3Y6GWT3
HDB42 LA-L591P Rev: 1.0 (A00) 2022-01-13

Attached UC6 and UC2 dumps
Thanks in advance!

KKK

[jadao]

KKK

Works great thank you!
I have a bunch of them with same password, is there a way to retreive the password or I need to do them one by one?
Thanks agin

[hoaca388]

Works great thank you!
I have a bunch of them with same password, is there a way to retreive the password or I need to do them one by one?
Thanks agin

Take them one by one

[juanespty]

Hi. I'm having problems unlocking the BIOS/Computrace for this particular model. I've successfully been able to unlock earlier models (e.g.: 5420, 5310, etc.). I've tried with more than 1 laptop of this model, and I'm having the same problem with all of them.

Information:

• Model: Dell 5430
• Board version: HDB42 LA-L591P Rev 1.0 (A00)
• Service Tag: FVWGSQ3
• UC2 and UC6 dumps attached

I'm using:

• T48 TL866-3G Programmer with Xgpro v12.66. I tried with 2 programmers (same model), but got the same result.
• WSON 8 POGO Probe for the UC2 Winbond 25Q256JVEN chip. Using W25Q256JW@WSON8 on Xgpro.
• SOIC8 Clip for the UC6 Winbond 25R128JVSN chip. Using W25Q128JV@SOIC8 on Xgpro.

I'm not desoldering the chips, but reading/writing them on the board.

If I try to read the chip contents with the Lithium Ion battery/charger disconnected, but the CMOS battery connected, every reading of the chips has different hash/crc values. After I disconnected the CMOS battery, the readings always matched. This doesn't happen with other models.

On Xgpro If I try to read the UC2 chip contents with W25Q256FV@WSON8 or W25Q256JW@WSON8 the values returned are all 00 . With W25Q256JW@WSON8 it seems to be able to read the contents correctly.

The problem is that when I try to write a bin file to the UC2 or UC6 chips, it:

• "Erases" the chip in half a second. This is too fast compared to other chips. It normally takes about a minute to erase a 32MB chip.
• After the content is written to the chip, it fails on the verification. The time it takes to write the bin to the chip is the usual.
• If I read the chip contents after writing to it, it has a different hash value than the file that was used for programming. I haven't actually compared the content. This is happening on both the UC2 and UC6 chips. The laptop does power on afterwards, but it's still locked.

Has any one been able to successfully program this model without desoldering the chip? It sounds like there's some sort of protection when the chip is on the board.




UC2 Chip



UC6 Chip



Error programming if "Verify after" option is selected.



No error programming if "Verify after" option is not selected, but chip content hash/CRC doesn't match with original file.


Thanks!