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Lenovo e420s

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Hi all,

i have lenovo e420s :

intel i5 , 8GB

Intel HD Graphics 3000 + AMD HD6630M

I try to boot instalation from external USB but i have error. (See attached picture)

After this i try to disable blutooth, wifi, intel vt , delete intel kext from extensions.. But isn't working.

Anyone can help ?

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i was tried everything but i can't boot.

I have Intel Ivy Bridge Series 6 c200 chipset with intel HD3000 integrated

and AMD 6630m graphic card.

First I was disabled AMD card, and only use integrated HD3000. After search

forums i was disabled vt-d.

I spent a lot of time trying to boot with all options :

-f -x





After this I was deleted all kexts AppleInteHD* , AMD*, NVDA* ...

I need help.

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why u inject intel hd .. if no kext ..

don't inject anything in graphics .. disable it

and no -f

use space bar

and select


good hack

PB Easy Note TM 86 - i5 430 M - H55M - Ram - 6 GB - Alc272 - Radeon HD 5470 512 QE/CI

Lenovo G500 - i5 3230m - HM77 - Ram - 8 GB - Conexant audio - HD 4000

My OS X Files 

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