Re: Dell m5520 bios needed
Try this one at post #4 by @peste - https://www.badcaps.net/forum/showth...light=LA-E331p
Try this one at post #4 by @peste - https://www.badcaps.net/forum/showth...light=LA-E331p
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Re: Dell m5520 bios needed
48376m2Comment
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Re: Dell m5520 bios needed
Its still under ProSupport warranty ..Comment
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Re: Dell m5520 bios needed
Warranty can not be claimed here and no after some technician worked on the boardComment
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Re: Dell m5520 bios needed
UPDATE:
I reprogrammed original bios ut2 and uh5 and a clean me bios laptop turns on works ok but turns off after 15 or 30 secs in error log there is a message
Undefined error occured 0x03808394Comment
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Re: Dell m5520 bios needed
Google the error message,it seems to be a common problem. "Undefined error occured 0x03808394"
It seems related to USB-C power delivery. There`s another dell model,can`t remember which one,it had motherboards replaced due to USB-C, the temporary fix was updating the firmware which didn`t last long.Comment
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Looking for Dell Precision 5520 Bios dump LA-E331P Rev: 2.0
Looking for Dell Precision 5520 Bios dump LA-E331P Rev: 2.0
not the Xps 9560Comment
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Re: Looking for Dell Precision 5520 Bios dump LA-E331P Rev: 2.0
Post your bios dump here.----------------------------------------------------------------------------------------------------------------------------------------------------------
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Thanks to all supporters.
----------------------------------------------------------------------------------------------------------------------------------------------------------Doctrina est fructus dulcis, radicis amarae..Comment
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Re: Looking for Dell Precision 5520 Bios dump LA-E331P Rev: 2.0
thats the problem i cant dump it main bios chip is deadComment
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Re: Looking for Dell Precision 5520 Bios dump LA-E331P Rev: 2.0
https://www.badcaps.net/forum/showthread.php?t=97161----------------------------------------------------------------------------------------------------------------------------------------------------------
All donations to Badcaps are welcome.
Become a Badcaps supporter
>>>>> click on this link to donate <<<<<
Thanks to all supporters.
----------------------------------------------------------------------------------------------------------------------------------------------------------Doctrina est fructus dulcis, radicis amarae..Comment
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Re: Dell m5520 bios needed
thanksComment
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Re: Dell m5520 bios needed
You're welcome, just as a hint - you can try Peste's dump first because it's a clean ME one, the one I posted is with the dirty ME firmware because for the needs of Black0hackers there's no need to be cleaned (so to speak it's actually better not to be in that case, but must be in yours). So if you want I can additionally clean the ME for you, but as I said Peste's dump will be just fine.Last edited by Vesko356; 07-06-2021, 11:23 AM.----------------------------------------------------------------------------------------------------------------------------------------------------------
All donations to Badcaps are welcome.
Become a Badcaps supporter
>>>>> click on this link to donate <<<<<
Thanks to all supporters.
----------------------------------------------------------------------------------------------------------------------------------------------------------Doctrina est fructus dulcis, radicis amarae..Comment
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Re: Dell m5520 bios needed
Don't know if you got sorted or not.
I dumped the BIOS and EC from a brand new XPS-9530 board from Dell.
There were 3 chips on the board which I dumped. All 3 are in the dump.
As this is a factory bios. You will be prompted to enter your service tag on first power onComment
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Re: Dell m5520 bios needed
try this
extract from working laptop
DELL XPS 15 9560 LA-E331P REV 1.0
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Re: Dell m5520 bios needed
Cam00/01 la-e331p
rev:2.0(a01)
2017-04-28
need bios file 4mb fileComment
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Re: Dell m5520 bios needed
Hello I need help to clean ME for Dell XPS 15 LA-E331P Rev 2.0, I have attached the fileComment
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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 -
Hello everyone,
I am requesting urgent assistance to unbrick my laptop, a rebranded TongFang GK7MRFR chassis. The laptop is completely dead following a faulty in-OS EC flash attempt.
I have successfully used a CH341A programmer and can read/write/verify both flash chips, but using my backups/extractions has failed to restore power. The root cause is likely a corrupted Intel Management Engine (ME) region or an incompatible EC/BIOS pairing. System & Hardware Details- Barebone / Chassis: TongFang GK7MRFR
- MB: MB: GK5MP5X V1.0 Prod :GK5MRFV10T04201310281
- Rebrand: PC Specialist
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Hello everyone,
I recently bought a non-working Asus Zenbook Pro Duo OLED UX8402ZA that was listed for parts only. The seller mentioned that it had no display output but that the charging lights worked.
When the laptop arrived (without a charger and SSD), I connected a charger and confirmed with a multimeter that it was charging the battery. However, when I tried to power it on, only the backlight of the secondary display came on. There was no image, and it didn’t boot into the BIOS.
I decided to try flashing a new BIOS, but since I didn’t want to desolder... -
First of all thanks to all of our members who have posted previously all methods posted here.
Please leave a comment if you find something new,or have anything else to add.
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Find by serial number,model number or series
If you know the laptop serial or model number go to HP support https://support.hp.com/us-en/drivers/laptops .
Enter the serial number or model number and click submit.On the next screen you will have to enter the OS
Operating system and OS version.If... -
Hi, my laptop wont boot at all
With original bios no POST, only LED lights
With alternative BIOS from model TP500LN (flashed via programmer) the notebook works again
Some issues
A- with bios from 500LN, it won't update from bios of model 500LA (from 500LN v203 to 500LA v300)
B- If updated from 500LN version 203 to 300, the battery stops being recognized
Things I tried
1- Update / clear ME: Took the non working bios, made a backup, and did this: https://www.badcaps.net/forum/troubl...theory/trouble...
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