[REQUEST] Lenovo B50-70 (9DCNxxWW) Whitelist Removal

[Dudu2002]

Hi Dudu2002,
Any chance you could help out with unlocking the menus and whitelist removal on a Lenovo B50-70?
If anything else is needed from my side please let me know,
Best regards, MtothaJ

Hi
Your mod completed. Check PM

This mod for this notebook ONLY !!!

[Tad3y]

Hello,

can i get unlocked bios? I have Lenovo B50-70 and new AC wlan card which is not accepted by computer 

Backup is here: https://www.dropbox.com/sh/t384ob4af0efv...TIIea?dl=0

[Dudu2002]

Hello,

can i get unlocked bios? I have Lenovo B50-70 and new AC wlan card which is not accepted by computer 

Hi
Your mod completed.
Check PM

This mod for this notebook ONLY !!!

[TimPotter]

Can I get my bios unlocked + Advanced tabs?
I have a Lenovo b50-70 9DCN34WW(V3.04)

[TimPotter]

Done and sent

[Retard1337]

Hello,

can i get a modified bios? Ive got a B50-70 Laptop (Lenovo) - Type 80EU and a new Dell AC wlan card  (DW1560) which is not whitlisted  -.-


Result & Backup on Sendspace.com

thanks in advance!  

[Marco420]

I got the very same laptop and also need a bios without whitelisting.
BIOS dump can be found here:
https://www.sendspace.com/file/mi66g4

Thanks for your help!

[stupidman]

Hello,
I have to, a same problem with unrecognised AC wifi card; This is his name; AW-CB231NF QCNFA435
my dump of bios is here; https://www.sendspace.com/file/0pcpkf

And i have another problem with my lenovo B50-70, if is posible;
I want to have, in native slot a SSD drive, and another big hdd instead of dvd-drive, in a caddy-suport. Problem in fact, is bios which not recognise a HDD above 750gb in secondary slot. I try, so far, a 3 diferent Hdd@1Tb, from diferend producers, but is not see. Of course, it is possible, to be blamed caddy-suport, not bios...

Thank you, for any help...

[algorytmiki]

hi,

can i get unlocked bios? I have Lenovo B50-70 and new AC wlan card which is not supported

Regerds

[lenuser1]

Hi ! Firstly thanks for helping this forum seems to be great.


I would like to flash the BIOS with a modded one.
I bought a Wireless pci-e M2 card wich is not whitelisted in BIOS.
I'd look for changing pcivendor ID of the pci-e M2 device but the data seems to be RO and neither ethtool or setpci can solve the problem.

The BIOS version is 9DCN34WW(V3.04)

I do not use Microsoft products so i cannot use windows tools.

My laptop is a Lenovo E50-70.


I use Arch Linux based system.

biosdecode and dmidecode respectively return this:

Code:

# biosdecode 3.1
ACPI 2.0 present.
        OEM Identifier: LENOVO
        RSD Table 32-bit Address: 0x7EFFE124
        XSD Table 64-bit Address: 0x000000007EFFE210
SMBIOS 2.7 present.
        Structure Table Length: 2907 bytes
        Structure Table Address: 0x000FD000
        Number Of Structures: 68
        Maximum Structure Size: 226 bytes

Code:

# dmidecode 3.1
Getting SMBIOS data from sysfs.
SMBIOS 2.7 present.

Handle 0x0000, DMI type 0, 24 bytes
BIOS Information
    Vendor: LENOVO
    Version: 9DCN34WW(V3.04)
    Release Date: 07/21/2015
    Address: 0xE0000
    Runtime Size: 128 kB
    ROM Size: 6144 kB
    Characteristics:
        PCI is supported
        BIOS is upgradeable
        BIOS shadowing is allowed
        Boot from CD is supported
        Selectable boot is supported
        EDD is supported
        Japanese floppy for NEC 9800 1.2 MB is supported (int 13h)
        Japanese floppy for Toshiba 1.2 MB is supported (int 13h)
        5.25"/360 kB floppy services are supported (int 13h)
        5.25"/1.2 MB floppy services are supported (int 13h)
        3.5"/720 kB floppy services are supported (int 13h)
        3.5"/2.88 MB floppy services are supported (int 13h)
        8042 keyboard services are supported (int 9h)
        CGA/mono video services are supported (int 10h)
        ACPI is supported
        USB legacy is supported
        BIOS boot specification is supported
        Targeted content distribution is supported
        UEFI is supported
    BIOS Revision: 1.52
    Firmware Revision: 3.52

I did my Bios dump with dd like this:

Code:

# grep ROM /proc/iomem
000f0000-000fffff : System ROM

Code:

#dd if=/dev/mem of=E5070.bin bs=1k skip=960 count=64

Is this dump fully functional ?

The BIOS seems to be here:

https://pcsupport.lenovo.com/nl/en/produ...s/DS101224

I have few questions.

Is my BIOS RSA signed ? 

Regarding to this it should.

Is it possible to remove properly the whitelist and update the bios later ?

Is it a problem if i want t update other parts of the BIOS as Intel ME for example ?

I 'm interested but i do not have dissasembly coding skills .

Could someone help me giving me headlines to understand ?

Thanks guys.