Lenovo G400s

[bajito93]

Specifications:
 

Processor               : Intel® Coreâ„¢ i3-3110M Processor (3M Cache, 2.40 GHz)
Graphics Processor(GPU) : Intel® HD Graphics 4000 & NVIDIA® Optimus™ GeForce® GT 720M (Optional)
Chipset                 : Intel® HM76 Express Chipset
Hard disk               : HSGT 500GB 5400rpm HDD
RAM                     : 8GB DDR3 1600 MHz SDRAM
Wifi                    : Broadcomm BCM94322HM8L
Ethernet                : Qualcomm Atheros QCA8172
Audio                   : Conexant Dolby Audio CX20757
USB 3.0                 : Intel Corporation 7 Series/C210
Touchpad                : Elan Touchpad v3 Hardware
Webcam                  : Lenovo EasyCamera
Card reader             : Realtek USB2.0 Card reader (PID: 0x0139)
Monitor                 : LG Philips LP140WH2-TLS1 WXGA 14 16:9 HD1366x768
Optical Drive           : Matshita DVD Writer
Interface :
1 x Microphone-in & Headphone-out jack
1 x VGA port/Mini D-sub 15-pin for external monitor
1 x USB 3.0 port(s)
2 x USB 2.0 port(s)
1 x RJ45 LAN Jack for LAN insert
1 x HDMI 

 
Working:
Graphics with QE/CI on Intel HD4000 GPU
Audio with AppleHDA
WiFi
Bluetooth
Ethernet
USB2.0 and USB3.0
HDMI (With Audio)
Webcam
Optical Drive
Battery
Elan Touchpad with Multi touch
Sleep, Processor P&C-States with Native power management
Fn Hotkeys
 
Not working:

Microphone (Internal and External)

Nvidia Optimus GT 720M
Realtek USB2.0 Card Reader

VGA
 
Unknown:
None  
 
Issues:
None
 
 
For Installation:
Follow the steps in the link below, starting with Pre installation, Installation and Post Installation. Use the pack available in the EDP->Bootpacks list.
http://www.osxlatitude.com/edp/documentation/
http://www.osxlatitude.com/edp/compatibility/
 
BIOS - MOD:
A modified BIOS available here is necessary to remove the Lenovo white list and unlock advanced options. 2 x unlocked options need to be changed:

• The graphics value need change 32mb to 64mb for repair the glitch screen.
• USB XHCI change smart - auto to enabled for repair the webcam.