(UEFI) Dell XPS 15z L511z modded BIOS - and HOWTO

[arceusisdead]

Is there a setting to display over hdmi in bios as default?

[Kpax7]

Thanks, but you forgot to mention which module should I replace with in the bios!!

And does the size difference make any troubles?

[therevery0]

Hi all - been a while since I've posted here as I've been focussing on a few other projects.

That said, something new to report. The Memory Configuration options in the unlocked BIOS work a treat. I've flashed new SPD timings on the DDR3 ram (using the paid version of Thaip***n) and successfully clocked the previous 1333 modules to 1600MHz. BIOS/OS and Benchmarks all validate the increase in speed (which is quite remarkable btw). Note of caution - you can brick the modules with incorrect SPD timings, but if you boot with a working RAM module and insert the faulty module whilst the OS is running, you can safely restore the working SPD settings.

Interesting now to see if I can clock vanilla 1333MHz modules to 1867 or better

What memory module did you flash? and with which template?  I have the Hynix H5TQ2G83BFR-H9. And i am interested in flashing them @ DDR3 1600J profile.

[ibrahimk01]

I really apreciate u guys work but i dont know even a single thing about bios modding, so can someone please upload the completely ready to flash bios

[donhuevas]

Hi everyone, I have a problem, my gt525m have just died, this is the scenario: https://www.dropbox.com/s/ee1ezvrm5ubw3h...e.JPG?dl=0  I was searching for a vbios in order to flash the video card but honestly I dont have idea on how to do it, Ive been trying with phoenix UEFI winphlash but with no luck, I dont know what to do, so Im asking you guys If you can help me, Im sorry for being so annoying.
PD: Im not a native english speaker, my apologies for any mistake.
Benjamin.

[wired68]

Does anybody have a L511z bios dump that i can flash directly into the bios chip using a flash programmer so i can try to unbrick my xps 15z L511z?

The method using a recovery CD does not work since i accidentally flashed a completely wrong bios

The MX25L3206E bios chip is supported by my programmer, so all i need is to desolder the chip and a dump file of a working one.

[wired68]

Meanwhile i found a BIOS Dump from the XPS 15z and flashed it but the Laptop is still bricked.

Is the KBC possibly bricked too when i flashed a wrong file?

Where do i find the KBC Chip?

But perhaps i only found the wrong Dump, so i am still looking for a Dump of the Main BIOS and possibly KBC too so i can flash them using my TL 866

[wired68]

i finally unbricked my XPS 15z

i removed the mainboard and desoldered the KBC biso chip and flashed it again with a dump that i found in an other forum.

After reassembling the laptop still did not boot but crisis recovery worked again!

So i used crisis recovery to flash the main bios chip, after that it finally worked again.

[jkbuha]

Sorry guys been a while since I logged in. Congrats on successfully desoldering the bios chip; the first time I tried I fried the mobo let me know if you need any help in trying to get any recent bios files.


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[moheban79]

Hi,

Was wondering if anyone has the source code to the shell enabler dxe driver? Was wondering how it works.

Thanks