here you go, password removed...

Hi, if this needs to go in different category please let me know

I have Dell Latitude 5520, however it refusing a Bios Update, the current Bios version 1.30. Its 11th gen with with an 1135 G7 CPU.

I have tried everything under the sun to try and get this Laptop to update the Bios, Latest version 1.47, however It wont do the Bios Update, via Windows, Via USB, Via Network, same issue, in Windows it does the checks and says its restarting the laptop, however all I get is black screen, nothing after that, 15/20/30 minutes, even 1 hour after.

I tried using the...

Cheers, your bin file worked a treat, I wish someone would make it clear you need to match your board number to the correct bin file. Would make life easier and save a lot of questions....

you asked me for the board number then gave me the wrong bios, i don't know if your taking the piss or genuinely trying to help...

Unfortunately it did not work, it allowed me enter service tag, even get past the service menu by accepting the service tag number, but would not get out of manufacturing mode...

Cyborg-L15 MB TGL NEW PD 4C52D$KA 213047-1

Dell Part Number: 03WMC

Service Tag: 826KQL3...

HI Guys, need some help with this please, its a Dell Latitude 3520, originally it had bios password lock on it.

I have had the Bios chip on and off the board about 20 times time and I am really tired of doing it.

I made a mistake with the original bios file because I read it as a 16MB Chip at 1.8V rather than 32MB chip at 3.3v, I subsequently erased and wrote to that chip, I only realized this when I was about to post on the site asking for help as to why my system is dead, I thought OK now I now what the issue I can try work with what I have now and set about trying...

✅ Dell T7820 BIOS Recovery Summary


(W25Q256JVFQ, CH341A Programmer, No .HDR Available)

If your Dell Precision T7820 is bricked due to a BIOS update failure (no POST, black screen, fan spin only), here’s what actually works — since no forums gave a full working answer when I searched.

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❌ .HDR File Not Present — USB Recovery Won’t Work


Dell BIOS .exe files sometimes contain a hidden .hdr file used for recovery via USB, but:...

HI,

I have a Dell T7820 stuck in Bios recovery mode. I never get Dell Boot screen or anything visible on screen. The system just gives me 3 white lights and 3 orange lights indicating Bios recovery mode.

What I have tried to get to recover the Bios, there seems to be some conflicting advice about recovering the system.

All of them say to download the latest bios from the dell website which is a .exe file. I have done that

https://www.dell.com/support/product...BUT090/drivers

Some...

Hi, I am the memory guy, so if you need any ram upgrades, gimme a shout.

I am here to try and save and hopefully rescue a Dell T7820 workstation that has bricked!...