[REQUEST] Lenovo IdeaPad L340 (BGCNxxWW) BIOS Unlock

[evilfire]

I have the same device(Lenovo Ideapad L340-15IRH)
BIOS ver: BGCN34WW

I'm looking to mod my bios to access the advanced bios for setting ram profiles and maybe some undervolting.

Can someone guide on how to get a modded bios and with recovery instructions and possible failure consequences?

I'm very new here, thanks for your patience.
I do have some experience in flashing Bootloader and roms on android devices if that makes anything relevant.

[DiMaTrioS]

I have the same device Lenovo Ideapad L340-15IRH - Type 81LK
BIOS ver: BGCN34WW

[Trazan]

Hello, I want unlock advanced menu in my bios.

bgcn34ww

dump-bgcn34ww.zip

[Trazan]

my dumb

[henry_cool]

Hello, my laptop (Lenovo L340-17IRH) has a few different models depending on region. Some of them have soldered 2400MHz 2nd ram stick.
And because of that lenovo limits ram to 2400MHz even if other models have 8GB 2666MHz ram preinstalled, which is stupid.Can someone edit my bios var for support 2666MHz? I attached IFR & vars.txt

I can't do it myself because I don't understand the 16bit hex & why is the 2nd varstore that has exact same values as SaSetup. I hope someone can kindly explain about the 16-bit hex thing and how its only 2 numbers in vars.txt

[admanny]

Hello, my laptop (Lenovo L340-17IRH) has a few different models depending on region. Some of them have soldered 2400MHz 2nd ram stick.
And because of that lenovo limits ram to 2400MHz even if other models have 8GB 2666MHz ram preinstalled, which is stupid.Can someone edit my bios var for support 2666MHz? I attached IFR & vars.txt

I can't do it myself because I don't understand the 16bit hex & why is the 2nd varstore that has exact same values as SaSetup. I hope someone can kindly explain about the 16-bit hex thing and how its only 2 numbers in vars.txt

I thought the 2400MHz is a chipset limitation. Can you let me know if 2666MHz works after unlocking the BIOS? I have the same model, thanks

**CAN ANYONE REPORT IF THEY ARE ABLE TO USE 2666MHz RAM AFTER ADVANCED BIOS UNLOCK WITH PROOF?** Have been searching far and wide but nothing so far. Save us all from the horrors of 2400MHz, please!

[carlosofflow]

Hello, i need to unlock my bios to acces to the switchable graphic mode. can someone help me ? it's the BGCN34WW bios.

there is my dump :
https://drive.google.com/file/d/1U2May1d...sp=sharing

[wtfcxt]

Hey can you dm me too? I want bios unlock.

[DiMaTrioS]

Здравствуйте, мне нужно разблокировать биос, чтобы удалить белый список Wi-Fi. Помоги мне ?
ноутбук Lenovo L340-15IRH Gaming Laptop (ideapad) - Type 81LK
Версия BIOS — BGCN35WW.

[AndreoBotelho]

Hi, I have the same model L340-15IRH Gaming Laptop (ideapad) - Type 81LK, bios version BGCN31WW and need unlock advanced tab, can you do it?