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

[TimeWalker]

Thank you, but I would rather get a fishing pole myself, then buy fish straight from you .. if you know what I mean
For some reason none of the phoenixtools I have is willing to unpack the capsule :|

[TimeWalker]

@kasar, would you mind sharing how you extract L502x BIOSes on your machine? I'm just totally lost, phoenix tool does absolutely nothing when attempting to extract a rom..

[follow_me]

When you open ROM file in Phoenix tool (v 2.12) - it created DUMP folder in rom's folder with all the parts extractedyou dont need to do something with it

If you want to extract something manualy - you can click Structure button and then browse the FS teree, select target image and click "extract" button from the right side bar

else you can try to use mmtool to extract bios parts

[Brabbelbla]

@TimeWalker
AFAIK redistributing the tool isn't prohibited, so here is what I use(d). I just open the WPH file, then the F33E367F-blahblah and then edit the contents. If it still doesn't work, I don't really know, but my security suite didn't like what the tool did, I had to create an exception rule to not have it deleted.

And then, about the VBIOS, did you notice any functionality loss when using the one Ashp modified for you?

And finally, would there be any disadvantage, besides the wireless toggle not working, to commenting out the FOWM call like you mentioned with the Fn+F2 freeze?

[TimeWalker]

When you open ROM file in Phoenix tool (v 2.12) - it created DUMP folder in rom's folder with all the parts extractedyou dont need to do something with it

yeah, this is not rocket science. it's just that it won't unpack exactly L502x BIOSEs. At this point I must thank Microsoft for their marvelous Windows 8. Took my AO751h from it's exile on a shelf of dumped items and it unpacked the capsule right away.. Windows 7 Starter there..

@Brabbelbla
No disadvantages, the only issue is that he forgot to change chipset from H77 to H67 and the versioning string, but's that's an easy fix. Commenting out FOWM call leaves the button non-functional at all, it doesn't do anything when you press it, but the good thing is that it doesn't freeze the laptop either. By altering sources of IOWMIFamily you could make the button into some other button, Video Mirror or Eject or anything you can do from Apple's ADB codes (you need to be parsing the WMI code from the button press, it is being emitted even if you remove the call).

[jkbuha]

Hi all

Sorry for delay in reply as have been abroad and away from my machine.

The plist file is quite straightforward, at least that's what I think, and is based off the latest trunk version.

Code:

<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> <plist version="1.0"> <dict> <key>ACPI</key> <dict> <key>DropOemSSDT</key> <string>Yes</string> <key>DsdtName</key> <string>DSDT.aml</string> <key>GenerateCStates</key> <string>Yes</string> <key>UnderVoltStep</key> <string>1</string> </dict> <key>CPU</key> <dict> <key>BusSpeedkHz</key> <string>100000</string> </dict> <key>Graphics</key> <dict> <key>GraphicsInjector</key> <string>Yes</string> </dict> <key>PCI</key> <dict> <key>DeviceProperties</key> <string>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<key>StringInjector</key> <string>Yes</string> </dict> <key>Pointer</key> <dict> <key>Speed</key> <string>8</string> </dict> <key>SMBIOS</key> <dict> <key>ProductName</key> <string>MacBookPro8,3</string> </dict> <key>SystemParameters</key> <dict> <key>BacklightLevel</key> <string>0x0</string> <key>InjectSystemID</key> <string>Yes</string> <key>LegacyBoot</key> <string>LegacyBiosDefault</string> <key>boot-args</key> <string>-v npci=0x2000 arch=x86_64 slide=0</string> <key>prev-lang:kbd</key> <string>en:0</string> </dict> <key>Volumes</key> <dict> <key>HideAllLegacy</key> <string>No</string> <key>HideAllRecovery</key> <string>No</string> </dict> </dict> </plist>

As I've said before - clover really provides good o/c: at least 25% more on my i7-2620m (haven't tried more, don't want to) but only on osx. Cannot get legacy working for windows or linux.

With regards to the ACPI FOWM call, surely that's something that we can re-enable in software via a macro/hotkey - essentially turning on/off wifi is an easy call to implement from within the os?

[HairyCube]

Hello from Vostro 3450 thread!

There is a way to flash modified DSDT on Vostro 3450. There seems to be a bug in PhoenixTool that prevents it from reintegrating the module correctly. You can fix the module with some hex editing and replace it manually using the "Structure" button. I believe you can do the same thing for the XPS. I will post more details soon, but meanwhile you can check my report here: http://www.bios-mods.com/forum/Thread-De...4#pid54424

[jkbuha]

Hey mate - good to see you from the Vostro topic

Great stuff on DSDT recompilation - rep added! I know some people won't benefit from DSDT recompilation, but I'm really trying to make Windows a better experience for me, including if possible switching off the Nvidia card selectively to extend battery life.

I have a couple of questions:

1) Does Windows in BIOS mode use DSDT, or is ACPI purely used by UEFI-booting?
2) How did you actually compile the DSDT - is it simply iasl or did you use some additional parameters?

Great stuff mate!
jkbuha

[kasar]

@timewalker


oh, very very srry for late reply mate, I has been the whole weekend on a japan anime event.


also didnt recived activity email from this topic for some reason :o

uploading the unpacked L502X A10 BIOS now ^^


let me know if you also need the A12 BIOS

did you have HXD installed and asociated with WPH and rom files?

It was the fix for me in order to phoenix tool opens it correctly..

here is the A10 unpacked bios

http://www.mediafire.com/?ejj3p256it433th

give a look to the dump folders


let me know if you need anything else

[Brabbelbla]

Has any of you succesfully got Windows to boot when using a DSDT with the FOWM calls commented out? With me, it throws up a BSOD, saying the BIOS is not ACPI compliant. With OS X it 'works', though.