Please make a modded y510p BIOS based on 74CN44WW V3.05

[commy0721]

yes it works, I tried downgrading my y510p from 3.05 to 2.07 using your file, it worked without any problems

[Hataz]

Was anything found on be able to remove the whitelist on 3.05?

[take2lake]

I get "AC detect error!" when I run this. Looks like i have 74CN44WW(V3.05)

[take2lake]

I get "AC detect error!" when I run this. Looks like i have 74CN44WW(V3.05), and it says Error 280: Failed to disable write protection for the BIOS space when I try to do a backup. Windows 8.1 x64... Any insight you have to what I might be doing wrong would be greatly appreciated!

[take2lake]

I'm an idiot. Plugged in. Ran. Doy.

[liuhaijun163]

I have BIOS3.05 but I want to change the wireless card to intel 7260AC,how should i do?

[Sellitus]

I'm wondering, does anyone think there is a blacklist for SSD drives? From what I hear there are almost none around.

[dalgibbard]

Lame that Lenovo lock this down... surely it's up to the consumer to decide what hardware they want to install in _their_ equipment? I'd file a lawsuit if I wasn't so lazy.

[Hataz]

File a lawsuit? You are not forced to buy their products and once you do you are agreeing to their TOS somewhere along the lines. So a lawsuit will get you no where but wasted money.

[SGTShark]

Not to hijack the thread, but can anyone confirm if by downgrading we can have access to the CPU turbo support in the bios? I've been reading that we may need access to it to ensure all cores boost properly. Otherwise this does not work properly when using the gpu's and CPU together on intensive games.

[yenal]

I really want to install Intel 7260 AC wifi card I bought from NewEgg to my y510p. It came with InsydeH20 r3.7 bios. Is this bios downgradable? Would the GT755M work properly with the 2.07 bios? Also what is the reason for not being able to modify 3.x bioses? Are they encrypted somehow?

[Jankess]

I too get "AC detect error!" when I run this. (

[Hataz]

I really want to install Intel 7260 AC wifi card I bought from NewEgg to my y510p. It came with InsydeH20 r3.7 bios. Is this bios downgradable? Would the GT755M work properly with the 2.07 bios? Also what is the reason for not being able to modify 3.x bioses? Are they encrypted somehow?

Yes it's downgradable as mine came with 3.07 and just downgraded to 2.07 and modded it. As i have the GT755M SLI everything works fine after the downgrade and mod. Yes, it's encrypted according to Svl7.

[yenal]

Yes it's downgradable as mine came with 3.07 and just downgraded to 2.07 and modded it. As i have the GT755M SLI everything works fine after the downgrade and mod. Yes, it's encrypted according to Svl7.

Is my windows key a part of the bios? If so how can I back it up?

Sent from my SCH-I535 using Tapatalk

[leoha]

I really want to install Intel 7260 AC wifi card I bought from NewEgg to my y510p. It came with InsydeH20 r3.7 bios. Is this bios downgradable? Would the GT755M work properly with the 2.07 bios? Also what is the reason for not being able to modify 3.x bioses? Are they encrypted somehow?

This get me thinking as well.

Does anyone tried downgrade from 3.05 to stock 2.07 and then upgrade to modded 3.05 again? Why this wouldn't work? Is it related to EC part of the flash (or other like ME)?

[jerryfxl007]

How can i download the attachment?

[Fidanza]

I second this. Any chance we could get a clean 1.xx BIOS?

I third this. Is it possible to downgrade to 1.xx from 2.07 bios ?

[morvegil]

I down graded to 2.07. I switch the settings, Now windows isnt booting, I should tell you i installed a SSD drive so maybe thats why. Going to put the old hardrive back in an upgrade back to 3..05

[morvegil]

where can I get 3.05 back?

[Shamejonas]

If u followed the instructions they all say that before you do anything make a backup of your existing Bios so if something go wrong you can restore it. And your Windows key is also stored in the Bios so if u did not back it up i think you might have problems.

[fr33]

I guess I should post this here:

I downloaded the 3.05->2.07 downgrade file, ran it as admin in Windows 7, and I got an error stating "Insyde flash cannot load the driver. Please close all applications. If you run this utility in Windows 7, please run as Administrator."

BIOS settings: all set to legacy

BIOS flashback: Enabled

Secure Boot: can't find it, doesn't seem to exist in my BIOS settings (unless I'm being dumb...)

Obviously I closed all other applications.

I also tried going through the steps in the stickied thread (drag & drop method). I was able to extract a copy of my BIOS (4.6mb file). I tried doing a drag & drop of that BIOS backup on the downgrade file but that gave the same error.

Any ideas on something that I'm missing?

[rskn]

I am on 3.05 ,too it would be great if someone give me a little guadince how to downgrade

[qcrist]

I believe that the Secure Boot option is only available when in UEFI mode

[ddyoswaggie]

I'm getting this, "BIOS version compare error!" with version 3.05, any thoughts? It's plugged in and I'm able to create a backup and stuff so I'm not really sure what this means. Help would be greatly appreciated!

[Shamejonas]

Hi

I used this on my computer with 3.05 BIOS

First you should go to this post and download the tool to backup your bios as they are now. Before doing any mod installation. After you have made a backup file save that file some were that you can remember it because your Windows key is in it.

Then download the downgrade file from this post and downgrade to 2.07 BIOS.

Then make another backup of the new 2.07 BIOS and then use the BIOS fixer from the first post again to install the mod to it.

Then you flash the new bios you just made, as they say in the first post.

Don´t forget to follow the instructions on these posts. This worked great for me and had no problems.

Many thanks to svl7 for making this possible!