claudios91

I understand that first time: you downgrade fro A13 to A05 and mobo was dead and you replaced it?

second time: you downgrade from A13 to A011, then to A11 unlocked, install 780m and its ok now? this time you use prrtool?

absolutely exact! byt from a13 to a05 it was a blind flash

Ah, I see. Yeah, usually though its AUTO selected to SG , which is optimus capable. in worse case you get 8 beeps until you turn on and off your computer enough it resets everything by default.

Which gpu do you have? The problem is that my f7 (I/d gfx) didn't work anymore so I had to put unlocked bios! And is also great for oc feature

Why would you need it to change GPU ? You mean changing SG to PEG ? (Can't that be done in a normal bios? Or automatically)

And disable nvidia Optimus! It does not working with my 780m

I had an unlocked bios for a long time, I can't think of much if anything it did for me to even have it/use it. Most the menu's were redundant versions of the menu's and then some stuff you'd never change anyways.

Changing gpu would worth it!

I meant that if the downgrade had failed you would need to blind flash. So no problems with downgrade at all? I have a A13 BIOS Motherboard myself and want to flash unlocked BIOS so need to downgrade. Let us know how it goes..

Absolutely no problem! Just use the file from dell. It will downgrade to a11 (I think is beacayse a13 is almost the same) and you can flash with prr in the main post. It's easy and safe as far as I know! If I had tried this before I would have save my other mobo without downgrading to a5. 300€ gone!:/

You might want to be careful... This might cause a brick.. It's risky.. I would be prepared to do a blind flash if necessary.. Let us know how it goes though.. I need to try something like this too..

My downgrade was just successful...it was with stock bios and it was just like an upgrade! So I'm with a11 now and everything is okay! I will try to install the modded one when I have time. I've already broke another mobo doing the blind flash thing so I will not risk this other doing blind flash

Is it possible to upload a full size A11 unlocked bios please ? It's for unbrick my M17X R4 who hab been flashed with fpt.

It seem that to be recognise by blind flash method, the M17R4.hdr must be identical in size than the original one ( 9675kb in case of A11)

Thanks in advance.

French Fred

try to remove cmos battery!

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i've found out that u can just flash a11 stock from a13 and it will make u downgrade without any problem, i will flash the modded bios asap

does anyone tried to flash a11 on top of a13 stock using ftp?

It does not have Intel graphics listed in BIOS, just the nVidia GTX. Have tried at least 10 different drivers and ones with modded INF with no luck.

as far as i know if u don't disable nvidia optimus there is no chance! That was what i studied when we changed the GPU on a friend's ali!

Hello, I am trying to install a GTX 765 into an M17 R4 and so far have been unable to install the driver. Would having this modded BIOS help achieve this? Thanks.

you need it to disable the optimus feature. if not gpu won't start

can we flash a11 on top of a12/13?

Hi mate i have an Alienware x17m r4 and the bios version is 12A is it possible using the recommended version to downgrade the bios to version 11 unlocked bios

it's possible but downgrade is always dangerous, i bricked my mobo.

@svl7, could you please share the unlocked A13 BIOS for the Alienware M17x R4 if you have it or please otherwise unlock it and share it with us? I would be really grateful if you could do so as there are plenty of people like me with A13 who would love to have full compatibility with Windows 8.1 which A11 doesn't have.. it would also make it less risky for us to flash an unlocked BIOS as we wouldn't have to downgrade etc. I'm quite sure we'lll all be happy to donate a beer or 2...

totally agree with this man, i already brick a mobo with downgrading procedure so please @svl7 help us stuck with a13!

any way to have a full dump of the bios without desoldering it?

and there is a way to have a full dump of my bios in this mobo to restore it to the chip of the other one? I have a programmer for chips.

sorry for the post, i managed to downgrade my mobo to a05 with blind flash method but then i did not find a way to flash a11 stock because in a05 there was not the uefi options. So i tried flashing your mod bios and i bricked my mobo. Now i've got another mobo with a12 (300€ from dell -.-) and i'm going to ask you first before proceed. Can i flash your a11 ublocked directly on my a12? without downgrading and so?

i'm glad to find all the stuff i need for my alienware!