need bios dump dell latitude 5420 (cpu 11th)

[SMDFlea]

Hello everyone

I'm having a problem. While updating my laptop's BIOS, it became corrupted and won't exit recovery mode. I already purchased the CH341A reprogrammer and installed the program and drivers.

I verified that it was working correctly, read the chip, and backed up the version I had, but now I can't reprogram the correct version. The files are larger than the chip supports. I have a Winbond 25Q80DVSIG chip, and it appears to be 8 MBits.
Could someone help me find the correct BIN file? Or, if so, tell me what I'm doing wrong.

Thank you very much.

You chose the wrong chip. The 25Q80DVSIG is for the thunderbolt firmware or something else, it is not the bios chip.

[Alberto Martínez]

Hello everyone

I'm having a problem. While updating my laptop's BIOS, it became corrupted and won't exit recovery mode. I already purchased the CH341A reprogrammer and installed the program and drivers.

I verified that it was working correctly, read the chip, and backed up the version I had, but now I can't reprogram the correct version. The files are larger than the chip supports. I have a Winbond 25Q80DVSIG chip, and it appears to be 8 MBits.
Could someone help me find the correct BIN file? Or, if so, tell me what I'm doing wrong.

Thank you very much.

[LBTT1121]

good morning ; i need to clean me my bios ;i have problem to boot

bios backup error

[YOUN]

LA K491P REV 2.0 SERVICE TAG 1DP5D3

[YOUN]

good morning ; i need to clean me my bios ;i have problem to boot

[shiyab]

Thank you, the device is working, but the image does not appear.

hi try

[nafienew]

hi try

Thank you, the device is working, but the image does not appear.

[shiyab]

Dell Latitude 5420 Main GDF40 LA-K491P rev 2.0
model P137G
ST C4C44F3
need disable absolute

hi try

[nafienew]

try and feedback

Thank you, the device is working but it keeps getting stuck on the Dell logo.?

Dell Latitude 5420 Main GDF40 LA-K491P rev 2.0 (cpu 11th)
model P137G
ST C4C44F3
need disable absolute

[LBTT1121]

Dell Latitude 5420 Main GDF40 LA-K491P rev 2.0
model P137G
ST C4C44F3
need disable absolute

try and feedback

[nafienew]

Dell Latitude 5420 Main GDF40 LA-K491P rev 2.0
model P137G
ST C4C44F3
need disable absolute

[SMDFlea]

I can see the screen on the laptop but backlight is not turning on. I see a dim screen on laptop and when i presss any key on th ekeyboard it maskes noise.

It`s not a bios problem, it`s hardware.

[mdrirfan@gmail.com]

Is it working ok via HDMI ?

I can see the screen on the laptop but backlight is not turning on. I see a dim screen on laptop and when i presss any key on th ekeyboard it maskes noise.

[SMDFlea]

Even after changing the cable i still have dim dispay. Can you please check if the BIOS provide is good.

Is it working ok via HDMI ?

[mdrirfan@gmail.com]

Thanks for the response. I did try this, now i have 2amber and 8 white indicator. Asssuming this is display cable issue.

Even after changing the cable i still have dim dispay. Can you please check if the BIOS provide is good.

[Udemzy]

Thank you for your reply & your valuable time but Same hang on Dell Logo

hello,pls where you able to solve this?

[Emeri]

Unlocked

This worked for me. Thank you so much!

[hoaca388]

Can someone please help with BIOS password.
Service Tag: 1QF1HK3

I have tried several of the bin files on this post, but after flashing, the laptop tries to boot up, screen flashes multiple colors in succession (white, green, blue, red) restarts afterwards and repeats the same cylce. Attached is the locked bin file that I backed up

Unlocked

[Emeri]

Can someone please help with BIOS password.
Service Tag: 1QF1HK3

I have tried several of the bin files on this post, but after flashing, the laptop tries to boot up, screen flashes multiple colors in succession (white, green, blue, red) restarts afterwards and repeats the same cylce. Attached is the locked bin file that I backed up

[mdrirfan@gmail.com]

try

Thanks for the response. I did try this, now i have 2amber and 8 white indicator. Asssuming this is display cable issue.