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bob92 · 01-13-2013, 04:07 PM

(09-07-2012, 08:30 PM)Pauley Wrote: Hey guys, I'm also interested in a modded A05 BIOS for my XPS 14z. Thanks!

Sent from my HTC One X

I just wanted to bump this, can anyone help out the the A05 version of the bios? Any help would be super appreciated!

gspiner · 11-29-2013, 03:15 PM

bump for the A05. Thanks in advance

rash.m2k · 02-08-2014, 12:02 PM

Bump folks - would really like an unlocked bios for this please!

**donovan6000** · 02-08-2014, 03:20 PM

Here you go. Unlocked three tabs in the A.05 bios Big Grin

And I always appreciate donations Blush

agent268 · 02-10-2014, 10:57 PM

(02-08-2014, 03:20 PM)donovan6000 Wrote: Here you go. Unlocked three tabs in the A.05 bios

And I always appreciate donations

Thanks for posting the A05 version. Any chance you can do it for the A06 version? Also, I would be very interested in learning how you do this as its something I have wanted to learn for a while.

Link to latest Dell XPS 14z bios: http://ftp.dell.com/FOLDER00926481M/1/L412Z_A06.exe

agent268 · 02-14-2014, 09:53 PM

Valentine's day bump! Heart

**donovan6000** · 02-14-2014, 10:59 PM

Lol thanks for being so patient. I was extra busy this week with school, so I'll get the A06 bios done tomorrow. I'll also post some screen shots explaining the modifications I do so that you can understand how it all works Big Grin

**donovan6000** · 02-16-2014, 02:15 PM

OK, here's the A06 modded bios.

And for a quick explination, I after extracting the Setup module form the rom, I dissassemble it with IDA Pro and see why the tabs are being hidden. As you can see in thei screen shot, the tabs were being skipped becase of a blacklist.

[Image: Dell%20A06%20Tabs.png]

Then I use Universal IFR Extractor to see if there's any additional settings being hidden. You can see here that there's soem options being hidden by the EFI_IFR_SUPPRESS_IF_OP and EFI_IFR_TRUE_OP.

[Image: Dell%20A06%20IFR.png]

That's it. I go into a lot more detail about reverse engineering and modifying bios in the tutorial on my blog Big Grin

agent268 · 02-20-2014, 09:12 PM

Awesome sauce!! Thanks for taking the time to explain it with screenshots. Now I just need to digest it all and learn from it. Also, big thanks on getting the A06 version unlocked too!!

gspiner · 03-05-2014, 01:57 PM

Duuuuuuuuuude, i've been waiting for A05 mod for over a year.
Just flashed it and everything went smooth.
Thanks a lot!

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