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Toshiba Satellite Pro R50-B-116 with i5-4210U, HD4400 and 1366x768 LCD - Big Sur


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Last update: 18 Jan 2021





  • BIOS v1.20 v1.70 with disk set to AHCI mode
  • Intel Haswell-ULT Lynx Point LP (8 Series) chipset
  • Intel dual-core Haswell-ULT i5-4210U @1.70GHz CPU (Turbo boost to 2.40GHz (2cores) or 2.70GHz (1core))
  • Integrated Intel HD4400 GPU 200MHz/1.00GHz (PCI ven id 0x8086, dev id 0x0a16)
  • 15.6" 1366x768 WLED LCD
  • 8Go DDR3L-1600 RAM
  • Realtek RTL8168/8111 Gigabit Ethernet (PCI ven id 0x10ec, dev id 0x8168)
  • Realtek ALC255 High-Definition audio (PCI ven id 0x10ec, dev id 0x0255)
  • Realtek (internal-USB) RTS5129 SD card reader (PCI ven id 0x0bda, dev id 0x0129)
  • Chicony Electronics (internal-USB) webcam HD (PCI ven id 0x04f2, dev id 0xb446)
  • Intel combo Wireless/BT card  -> ideally replaced by a fully compatible card/USB adapter
  • Alps V8 touchpad
  • 2 x USB 3.0 ports (right side)
  • 1 x USB 2.0 port (left side)
  • 1 x VGA output
  • 1 x HDMI output
  • 1 x combo microphone/headphones jack port


NB: No additional expansion slots inside that low-spec laptop other than the M.2 slot for wireless card. 2 x DIMM slots for RAM.



Toshiba:~ admin$ lspci -nn

pcilib: 0000:00:02.0 64-bit device address ignored.

00:00.0 Host bridge [0600]: Intel Corporation Haswell-ULT DRAM Controller [8086:0a04] (rev 0b)

00:02.0 VGA compatible controller [0300]: Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 0b)

00:03.0 Audio device [0403]: Intel Corporation Haswell-ULT HD Audio Controller [8086:0a0c] (rev 0b)

00:14.0 USB controller [0c03]: Intel Corporation 8 Series USB xHCI HC [8086:9c31] (rev 04)

00:16.0 Communication controller [0780]: Intel Corporation 8 Series HECI #0 [8086:9c3a] (rev 04)

00:1b.0 Audio device [0403]: Intel Corporation 8 Series HD Audio Controller [8086:9c20] (rev 04)

00:1c.0 PCI bridge [0604]: Intel Corporation 8 Series PCI Express Root Port 4 [8086:9c16] (rev e4)

00:1c.1 PCI bridge [0604]: Intel Corporation 8 Series PCI Express Root Port 3 [8086:9c14] (rev e4)

00:1d.0 USB controller [0c03]: Intel Corporation 8 Series USB EHCI #1 [8086:9c26] (rev 04)

00:1f.0 ISA bridge [0601]: Intel Corporation 8 Series LPC Controller [8086:9c43] (rev 04)

00:1f.3 SMBus [0c05]: Intel Corporation 8 Series SMBus Controller [8086:9c22] (rev 04)

01:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 10)

02:00.0 Network controller [0280]: Intel Corporation Wireless 3160 [8086:08b3] (rev cb)

Toshiba:~ admin$



:excl: USB2 (EHC1) controller 8086:9c26 is only available when BIOS is in CSM (i.e. legacy) mode as shown above. In UEFI mode (required for OpenCore/Big Sur for instance), only the USB3 (XHC) controller 8086:9c31 is available. This does not affect USB2 ports operation.


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Target macOS release:

  • Big Sur 11.x


This is an OpenCore-based installation (on a SATA-III 6Gb/s SSD) using the standard vanilla method detailed below:




Sat_R50-B-116_i5-4210U_BigSur_11.1(20C69).jpg   Sat_R50-B-116_BS_SpeedStep.jpg






Sat_R50-B-116_BS_DualScreen_HDMI#2.jpg   Sat_R50-B-116_BS_HDMI-audio.jpg












  • full graphics acceleration on Intel HD4400 graphics (with Lilu v1.5.0 + WEG v1.4.6 + usual Azul FB properties injection)
  • multi-display on VGA (OOB) + HDMI (with injected connector patch)
  • brightness control with Fn-Ins/Fn-PgDn (with Dortania's SSDT-PNLF); keys remapping required here
  • audio, including combo jack microphone input/headphones output (with VoodooHDA v2.9.2 + AppleHDADisabler); manual output selection required between speakers and headphones. I was only able to get audio with AppleALC (layout 13) if I booted with Clover.
  • HDMI audio (with ACPI renaming of B0D3 to HDAU)
  • GigEthernet LAN (with Mieze's RealtekRTL8111 v2.4.0d6)
  • wireless with any compatible card
  • integrated webcam (OOB)
  • full CPU power management 0.8->1.7GHz, including Turbo boost 1.8->2.7GHz (with Dortania's SSDT-PLUG.aml)
  • sleep & wake (with Hackintool's SSDT-UIAC):
    • sleep with Battery PrefPane settings, Apple menu, PWR button but not through lid closing
    • wake with PWR button, keyboard key, mouse/trackpad, lid opening, AC plugging
  • partial battery management (with Rehabman's ACPIBatteryManager v1.90.1); no auto-detection of AC plugging/unplugging (except after sleep/wake) but battery charge % Ok
  • keyboard & basic TrackPad functionalities (with Rehabman's VoodooPS2Controller v1.9.2)
  • all USB ports


Not working:

  • AC charger plugging/unplugging; proper status only reflected at startup or after wake
  • Realtek USB-internal SD Card reader
  • Bluetooth; not seen/detected due to likely USB-related issue; in fact, Bluetooth no longer appears/works in Windows after having booted macOS with OC



GeekBench v4.4.x (64bit) results:




1) 11.0 USB installer creation

  • Using a USB key of 16GB minimum, create a Big Sur USB installer through the following Terminal command:
sudo <path>/Install\ macOS\ Big\ Sur.app/Contents/Resources/createinstallmedia --volume /Volumes/<USB key>
  • where:
    • <path> = location of Big Sur installation package (eg: /Applications if freshly downloaded)
    • <USB key> = name of formatted USB volume (eg: USB_16GB)


The process will take several minutes. Once completed:

  • Setup your BIOS for UEFI mode if not already done so (installation won't work in CSM mode). Recommended BIOS settings available here.
  • mount the EFI partition of your USB installer and, if applicable, erase the partition through Disk Utility or delete all of its existing contents. Tools such as Mount EFI or apps such as Clover Configurator or EFI Mounter may be used to that effect. Failing that, the simple diskutil mount command does the trick once you've identified your EFI partition with diskutil list command:
sudo diskutil list (shows list of disks and partitions)
sudo diskutil mount /dev/<identified disk> (eg: sudo diskutil mount /dev/disk0s1)


  • :excl: Please note that, to modify your OpenCore config, you should use the following ProperTree app (see Dortania's documentation for details on this) though I must say that I've never encountered any issues with OpenCore Configurator app and OC 0.6.3-0.6.5:



2) 11.0 installation

  • boot the Big Sur USB installer
  • at the OpenCore main menu, select the "Install macOS Big Sur" partition and press [ENTER]
  • at Big Sur main installation screen, select Disk Utility to create & format the target Big Sur partition/disk. Note that I could not begin installation unless my target partition/disk was formatted HFS+
  • exit DU and return to Big Sur main installation screen, then proceed with installation
  • the installation process will twice reboot a temporary macOS installer partition to complete the installation. This overall installation process takes much longer (~1hr) than what was experienced with previous macOS versions so be patient. Don't be frightened by the 2nd reboot which show things never seen with previous macOS versions
  • a 3rd reboot will boot your target named Big Sur partition/disk and will be quickly followed by a 4th and final reboot of that same target Big Sur partition/disk 
  • each time, reboot via your USB installer.


3) Post-installation tuning

  • Once the finalised Big Sur installation has booted, complete the 1st boot configuration tuning
  • Once at the desktop, mount the EFI partition of your Big Sur disk
  • Copy the EFI folder of the Sat_R50-B-116 Big Sur OpenCore pack to the mounted EFI partition
  • You may then reboot and verify that Big Sur boots off your disk through OpenCore
  • You may then disable verbose mode by removing -v flag from NVRAM->7C436110-AB2A-4BBB-A880-FE41995C9F82->boot-args in the OpenCore config file.
  • You may then modify your SMBIOS info under PlatformInfo->Generic section and ensure you have unique numbers or unique combination of numbers. Use GenSMBIOS tool (available here) to generate new MLB, ROM, SystemSerialNumber and SystemUUID. Refer to Dortania's documentation for further info and guidance. Alternatively, you may use OpenCoreConfigurator app given that it is generally Ok too these days.
  • Complete any additional fine-tuning such as disabling hibernation, disabling GateKeeper, etc.



:excl: Please note that, after any significant change to your Big Sur setup requiring to modify your OpenCore configuration, it's usually required to execute a Reset NVRAM from OpenCore main menu (aka Picker) in order for the change(s) to be taken into account.


:excl: At time of writing (Jan 2021), this remains work in progress in order to address:

  • AC charger connection/disconnection status
  • Audio with AppleALC when booting with OpenCore
  • TrackPad better recognition and gestures
  • Brightness keys remapping
  • Bluetooth off compatible M.2 combo card
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