Bios Mods -The Best BIOS Update and Modification Source

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(09-09-2017, 11:44 AM)mtothaj Wrote: [ -> ]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 !!!

Hello,

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

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

(09-14-2017, 03:50 PM)Tad3y Wrote: [ -> ]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 !!!

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

Done and sent

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! Heart

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!

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...

hi,

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

Regerds

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.

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