- Joined
- Apr 16, 2012
- Messages
- 28
- Motherboard
- Laptop Lenovo G50-70
- CPU
- i7-4500U
- Graphics
- HD 4400
- Mac
- Classic Mac
- Mobile Phone
Laptop spec:
Model: Lenovo G50-70
CPU: i7-4500U
Graphics: HD4400
Audio Dirver: Conexant CX20751/2
HD: 500 Gb.
Ethernet: RTL8101E/RTL8102E
(Important advice: This guide is only tested in a Lenovo G50-70. Read carefully all the guide before start the procedure. You will download some software and drivers (kexts) prior the installation and copy them into the USB stick.)
Installation LOG:
1.- BIOS Setup.
2.-Preparing USB and initial installation.
3.- Post Installation.
4.- Fix display garble/scramble when Yosemite boots up.
4.1.- Probably any glitches remaining at Yosemite user's login screen appears. I applied the HD4400 fixing following the RehabMan's guide: [Fix] Intel HD4200/HD4400/HD4600 Mobile on Yosemite
5.-Patching DSDT.
6.- Wifi.
(Update 2015-04-10: I have experiencing problems with the USB 2.0 ports. The only way that I found to solve this problem is removing the Bluetooth deleting the files IOBluetoothFamily.kext and IOBluetoothHIDDriver.kext from System/library/extensions. Obviously the Bluetooth not working,but I don't need it.)
(Update 2015-07-14: After Yosemite 10.10.4 Update from AppleStore I must to re-inject de Audio Kext and, due to my problems with the Bluetooth/USB remove the IOBluetooth kexts.)
Model: Lenovo G50-70
CPU: i7-4500U
Graphics: HD4400
Audio Dirver: Conexant CX20751/2
HD: 500 Gb.
Ethernet: RTL8101E/RTL8102E
(Important advice: This guide is only tested in a Lenovo G50-70. Read carefully all the guide before start the procedure. You will download some software and drivers (kexts) prior the installation and copy them into the USB stick.)
Installation LOG:
1.- BIOS Setup.
USB Legecy: ENABLED
Wireless: DISABLED
SATA Controller: AHCI
Intel Virtual Technology: DISABLED
Boot Mode: Legacy Support
Boot Priority: UEFI First
USB Boot: ENABLED
PXE Boot to LAN: DISABLED
2.-Preparing USB and initial installation.
Follow the RehabMan guide: [Guide] Booting the OS X installer on LAPTOPS with Clover UEFI
NOTES: Install
RealtekRTL8100.kext to Clover/kexts/Other
FakeSMC.kext to Clover/kexts/Other
VoodooPS2Controller.kext to Clover/kexts/Other
In addition I used the "config_HD4600_4400_4200.plist" from the RehabMan's repository: https://github.com/RehabMan/OS-X-Clover-Laptop-Config.
3.- Post Installation.
Follow the RehabMan guide: [Guide] Booting the OS X installer on LAPTOPS with Clover UEFI (the second post of the same thread)
NOTES: Only if you have experiencing problems when install Clover into the HDD...:
3a. Open /Applications/Utilities/Terminal
3b. Type: diskutil list and locate your system drive's EFI partition. It will be under IDENTIFIER. Be sure to use the correct one. (For this example: disk0s5)
3c. Type the following, enter password and hit enter:
Code:
sudo newfs_msdos -v EFI -F 32 /dev/rdisk0s5
4.- Fix display garble/scramble when Yosemite boots up.
Follow this guide: [Fix] Resolve boot screen garble
4.1.- Probably any glitches remaining at Yosemite user's login screen appears. I applied the HD4400 fixing following the RehabMan's guide: [Fix] Intel HD4200/HD4400/HD4600 Mobile on Yosemite
In order to patch my DSDT I follow the RehabMan Guide: [Guide] Patching LAPTOP DSDT/SSDTs Read this guide before to do anything.
NOTES: To extract the DSDT file I used the Clover method described in the guide. To correct some complier errors I applied:
“Fix PARSEOP_STORE/MMTB error”
“Remove _DSM methods”
5.1.- Battery status patch.
5.1.- Battery status patch.
I Applied the patch “Lenovo G50-70” found in RehabMan/Laptop-DSDT-Patch · GitHub
5.2.- Enable Audio patch.
The audio kext (AppleHDA.kext) for my audio driver (Conexant CX20751) is located in AppleHDA For Yosemite - AppleHDA - InsanelyMac Forum This must be copied in EFI/Clover/kexts/Other.
Apply the patch “Audio Layout 12” from RehabMan/Laptop-DSDT-Patch · GitHub changing the Layout-id from 12 to 3 before applying the patch.
Apply the patch “IRQ Fix” from RehabMan/Laptop-DSDT-Patch · GitHub
5.3.- Enable Brightness control.
Follow the RehabMan Guide: [Guide] Patching DSDT/SSDT for LAPTOP backlight control
Apply the "Rename GFX0 to IGPU" patch to DSDT and the selected SSDT.
Apply the "Brightness Fix (Haswell)" patch to the selected SSDT.
And don’t forget to set the DROP OEM config.plist to True.
6.- Wifi.
I’m using EDIMAX USB EW-7811Un. The latest driver can be found in
(Update 2015-04-10: I have experiencing problems with the USB 2.0 ports. The only way that I found to solve this problem is removing the Bluetooth deleting the files IOBluetoothFamily.kext and IOBluetoothHIDDriver.kext from System/library/extensions. Obviously the Bluetooth not working,but I don't need it.)
(Update 2015-07-14: After Yosemite 10.10.4 Update from AppleStore I must to re-inject de Audio Kext and, due to my problems with the Bluetooth/USB remove the IOBluetooth kexts.)
Last edited: