Attached Files
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Dell_Latitude 5420
LA-K491P
Tag:C54SXD3
error 3 amber 6 white, please fix , many thankLeave a comment:
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Can someone please fix this for me? Flashing other bioses makes the laptop work and I can successfully boot into Windows, but then attempting to set service tag and exiting manufacture mode causes it to brick again. I'm not 100% sure what the service tag is, bottom cover says "7LYT5J3" but I'm not sure if this is bottom cover from this laptop, I've seen that it is possible to get it from the dump, so I would be thankful if someone can also verify this for me.Leave a comment:
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la-k491p
dell latitude 5420 I5 11TH
st 7W94WT3
NO power plz repairLeave a comment:
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Dell Latitude 5420
Model : P137G
GDF40 LA-K491P
Rev : 2.0 (A01)
2021-04-28
ST : B5PN4M3
Thanks !Leave a comment:
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Hello friends,
Need your valuable help with my corrupted bios. I have uploaded original file.
Dell Latitude 5420
SN - 4NNCCK3
Mother Board - GDF40 LA-491P
Only respond is power light get amber when pressing power button.
Please help me with clean dump file.
Thank you in Advance.... Cheers
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hello friends
i have a big problem with customer device
laptop latitude 5420 with board la-k491p rev 3.0
laptop come without bios chip
chip is 32 mb
and service taq in bottom is erased
i try a lot of bios but its not working
some bioss open diagnosis
some bioss open and stuck on logo and freeze
can any one help me please or tell me what can i do to resolve this complex case !!
i upload one of the bioss opened and freeze on logo dellLeave a comment:
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So, i kinda spend significant ammount of the last couple of days trying to flash a new bios, and or unlocking the current bios password with little to no results.
The whole thing started with it being the 8fc8 bios, i found the tools to unlock that but i needed a bios dump. So i pursued that, im at a point where i dessoudered the chip, and succesfully soudered it to the ch341, dumped whatever was on it.
However, the tools supposed to unlock the 8fc8 say that there is no 8fc8 hex inside. And when i followed diffrent tutorials to just flash a new bios onto the chip i got stuck on the... -
Hi
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... -
Hello everyone,
I’m currently working on a dead MSI GP75 Leopard (MS-17E71) motherboard (i7 CPU, NVIDIA GPU) with a no display/no backlight issue initially. After extensive investigation, I’m at a critical stage involving EC firmware, BIOS/ME region interaction, and possible deep corruption. I'm seeking advanced insight from anyone with experience in EC/BIOS sync issues or PCH-level behavior. Here’s a full breakdown:
🧩 Initial Issue- Board powers on (fans spin, keyboard lights up and can be adjusted, caps lock led lights), but no display or backlight
- External display (HDMI) shows
07-24-2025, 02:17 PM -
Dell 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... -
This specification for the DELL Latitude 5420 Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the 5420 boardview and 5420 schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet, or download for DELL Latitude 5420...09-07-2024, 06:31 AM
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