Dell Latitude 5430, LA-L591P Computrace setting unlock

[volinakis]

Re: Dell Latitude 5430, LA-L591P Computrace setting unlock

here is the correctly bios

try. 1st boot press F2, write Service Tag, disable Absolute, save, restart. 2nd boot press alt+F to exit manufacturing mode.

[Fixit2022]

Re: Dell Latitude 5430, LA-L591P Computrace setting unlock

I accidentally soldered the chip the wrong way around and now the notebook no longer starts no light nothing I just broke the chip or is the whole notebook defective.

[peste]

Re: Dell Latitude 5430, LA-L591P Computrace setting unlock

I accidentally soldered the chip the wrong way around and now the notebook no longer starts no light nothing I just broke the chip or is the whole notebook defective.

it happens again...put it back correctly and see what happens..maybe you'll be lucky...

[Fixit2022]

Re: Dell Latitude 5430, LA-L591P Computrace setting unlock

Unfortunately not. When I press the power button, the orange light lights up very briefly and nothing else happens. Is it possible to solder in another BIOS chip?

[Fixit2022]

Re: Dell Latitude 5430, LA-L591P Computrace setting unlock

Can I install this chip W25Q256JVEQ Flash IC or does it have to be exactly the W25Q256JVEN that is installed?

[volinakis]

Re: Dell Latitude 5430, LA-L591P Computrace setting unlock

Can I install this chip W25Q256JVEQ Flash IC or does it have to be exactly the W25Q256JVEN that is installed?

yep, it's ok.

[Moh.Jr.Boudali]

Re: Dell Latitude 5430, LA-L591P Computrace setting unlock

hello, me too, i need help for:

laptop / DELL LATITUDE 5430 /
motherboard / HDB42 LA-L591P Rev:1.0(A00) /
cpu / INTEL 12TH GEN /

service tag / #9X9BRQ3-8FC8
spi chip / WINBOND 32MB@WSON8

thanks.

[volinakis]

Re: Dell Latitude 5430, LA-L591P Computrace setting unlock

hello, me too, i need help for:

laptop / DELL LATITUDE 5430 /
motherboard / HDB42 LA-L591P Rev:1.0(A00) /
cpu / INTEL 12TH GEN /

service tag / #9X9BRQ3-8FC8
spi chip / WINBOND 32MB@WSON8

thanks.

try. 1st boot press F2, write Service Tag, disable Absolute, save, restart. 2nd boot press alt+F to exit manufacturing mode.

[Wasabilera]

Re: Dell Latitude 5430, LA-L591P Computrace setting unlock

Hello! I've got a locked Dell Latitude 5430 as well.
Admin password and Dell SafeBIOS enabled
Latitude 5430 / LA-L591P
Winbond 25Q256JVEN flash
Locked dump is attached. Thanks!

[hardware1]

Re: Dell Latitude 5430, LA-L591P Computrace setting unlock

Hello! I've got a locked Dell Latitude 5430 as well.
Admin password and Dell SafeBIOS enabled
Latitude 5430 / LA-L591P
Winbond 25Q256JVEN flash
Locked dump is attached. Thanks!

Here's your Unlocked Bios, hope it works fine.

[Wasabilera]

Re: Dell Latitude 5430, LA-L591P Computrace setting unlock

Here's your Unlocked Bios, hope it works fine.

Hi, thanks for the file. With the new file flashed, I'm getting no power on the laptop and only an amber light when the button is held. I double checked the orientation of the SPI flash chip when resoldering it.

I only see 4 bytes of difference between the original and new files. Is that expected for this model?

Thanks!

[aldopc]

Re: Dell Latitude 5430, LA-L591P Computrace setting unlock

Hi, thanks for the file. With the new file flashed, I'm getting no power on the laptop and only an amber light when the button is held. I double checked the orientation of the SPI flash chip when resoldering it.

I only see 4 bytes of difference between the original and new files. Is that expected for this model?

Thanks!

check well the soldering bin that the hardware friend gave you is correct, check if you blew any resistor or capacitor near the bios... if you are not sure upload an image of the bios chip and its surrounding components

[Wasabilera]

Re: Dell Latitude 5430, LA-L591P Computrace setting unlock

Got it. Turns out I didn't have the wson-8 SPI chip aligned quite right. I removed and resoldered the IC on, and now the laptop is functioning great!

Thanks for the help!

[biniu1978]

Re: Dell Latitude 5430, LA-L591P Computrace setting unlock

bios with admin lock , Please Unlock
Dell Latitude 5430
8FC8
Thank You

[hardware1]

Re: Dell Latitude 5430, LA-L591P Computrace setting unlock

bios with admin lock , Please Unlock
Dell Latitude 5430
8FC8
Thank You

Your Backup is not good, try to read it again correctly.

[biniu1978]

Re: Dell Latitude 5430, LA-L591P Computrace setting unlock

Your Backup is not good, try to read it again correctly.

Please try now. Thank You

[hardware1]

Re: Dell Latitude 5430, LA-L591P Computrace setting unlock

Please try now. Thank You

It's the same file.
Which programmer do you use? Are you using a clip or de-soldering the Chip?

[biniu1978]

Re: Dell Latitude 5430, LA-L591P Computrace setting unlock

de-soldering chip. try reading a few times and same result
programmer is TL866 II Plus

[hardware1]

Re: Dell Latitude 5430, LA-L591P Computrace setting unlock

de-soldering chip. try reading a few times and same result
programmer is TL866 II Plus

Attach a clear image for your Chip or what is written on it. Did you choose the same name of the Chip when you try to read it or auto detect?

[biniu1978]

Re: Dell Latitude 5430, LA-L591P Computrace setting unlock

my chip is - 25Q256JVEN

and my programmer have only that option - reading all same.
see picture