Meet the bootloader:

• Why OpenCore
• Dortania's website

Recommended tools:

• Plist editor ProperTree
• Handy-dandy ESP partition mounting script MountEFI

This EFI will suit any T460s regardless of CPU model¹, amount of RAM, display resolution² and internal storage³.

1. Optional custom CPU Power Management guide
2. 1440p display models should change NVRAM -> Add -> 7C436110-AB2A-4BBB-A880-FE41995C9F82 -> UIScale:2 to get proper scaling while booting
3. Enable NVMeFix for NVMe drives

After many hours of testing back in April and May 2020, I now consider this configuration stable.
This is the process I go through each time OpenCore gets an update (usually every first monday of the month):

1. Read release article on Dortania's website
2. Download all updated resources
3. Read new Documentation if relevant changes took place
4. Get a fresh Sample.plist to avoid missing new stuff
5. Copy and Paste SSDT, Patches and Kexts
6. Set T460s' config options
7. Booloader test on USB stick
8. Clean my SMBIOS and upload on GitHub
9. Add changelog and update status in README

Basically I do the boring part so one can easily download the EFI folder and play with it in minutes.

Read the installation guide and come back here to get the latest EFI folder.

1. Download the repo and grab the EFI folder.
2. Copy and Paste your PlatfromInfo.
3. Enable optional kexts if needed (NVMEFix, AirportItlwm, etc.)
4. Test the new bootloader with an USB stick
5. Customize boot preferences (skip picker, disable verbose, etc.)
6. Mount your ESP partition
7. Backup your old EFI folder and replace it with the new one

WARNING: Big Sur is in beta. While potentially compatible, the configuration is not developed for it.
Thanks to @duszmox for his guide

1. Launch Terminal.app
2. Copy the following script, paste it into the Terminal window, then press ENTER

   git clone https://github.com/corpnewt/GenSMBIOS && cd GenSMBIOS && ./GenSMBIOS.command 

3. Type 2, then press ENTER
4. Drag your config.plist inside the Terminal window
5. Type 3, then press ENTER
6. Type MacbookPro13,1, then press ENTER

1. Open Config.plist with any editor
2. Go under Kernel -> Add
3. Find and Enable AirportItlwm.kext, IntelBluetoothFirmware.kext and IntelBluetoothInjector.kext
4. Save and reboot the system

1. Open Config.plist with any editor
2. Go under Kernel -> Add
3. Find and Enable NVMeFix.kext
4. Save and reboot the system

1. Launch Terminal.app
2. Copy the following script, paste it into the Terminal window, then press ENTER

   git clone https://github.com/fewtarius/CPUFriendFriend; cd CPUFriendFriend; chmod +x ./CPUFriendFriend.command; ./CPUFriendFriend.command

3. When asked, select preferred values
4. From the pop-up window, copy ssdt-data.aml into /EFI/OC/ACPI/ folder
5. Open Config.plist with any editor
6. Go under ACPI -> Add and change SSDT-PLUG.aml with ssdt-data.aml
7. Go under Kernel -> Add and set CPUFriend.kext to Enabled: True

This my machine's power consumption when idling:

For ThinkPad's dock only, use one of following methods:

• USBMap by CorpNewt
• Native USB fix without injector kext

1. Disable SIP
2. Launch Terminal.app
3. Copy the following script, paste it into the Terminal window, then press ENTER

   bash -c "$(curl -fsSL https://raw.githubusercontent.com/xzhih/one-key-hidpi/master/hidpi.sh)"

4. Follow the script instructions, then reboot
5. Enable SIP (if desired)

Thanks to @MSzturc for providing the keyboard map and ThinkpadAssistant app

1. Download and install ThinkpadAssistant
2. Open the app
3. Check the launch on login option

1. Open SystemPreferences.app
2. Go under Keyboard > Shortcuts > Screenshots
3. Click on Screenshot and recording options key map
4. Press PrtSc on your keyboard (it should came out as F13)

These profiles are from NotebookCheck. Not all panel are the same so final result may vary.

1. Launch Terminal.app
2. Copy the following script, paste it into the Terminal window, then press ENTER
   • for 1440p displays

     cd ~/Library/ColorSync/Profiles; wget https://github.com/simprecicchiani/ThinkPad-T460s-macOS-OpenCore/blob/master/Files/DisplayProfiles/T460s_WQHD_VVX14T058J02.icm

   • for 1080p displays

     cd ~/Library/ColorSync/Profiles; wget https://github.com/simprecicchiani/ThinkPad-T460s-macOS-OpenCore/blob/master/Files/DisplayProfiles/T460s_FHD_N140HCE_EAA.icm

3. Go under SystemPreferences > Displays > Colour
4. Select the calibrated profile

1. Download and install HWMonitor
2. Open the app
3. Check the launch on login option

This enables auto-hide and speeds up the animation

1. Launch Terminal.app
2. Copy the following script, paste it into the Terminal window, then press ENTER

   defaults write com.apple.dock autohide-delay -float 0; defaults write com.apple.dock autohide-time-modifier -float 0.5; killall Dock

Once you get everything up and running it's possible to disable some options inside config.plist to get a faster and cleaner boot.

I know it can be scary at first. But with the right amount of carefulness anyone could do it.
Is it worth the effort and risk? I don't think so. I enjoyed it? 100%.
Guide in progress

• CPU Power Management ~1W on IDLE
• Intel HD 520 Graphics incuding graphics acceleration
• All USB ports with custom kext or SSDT
• Internal camera working fine on FaceTime, Skype, Webex and others
• Sleep / Wake / Shutdown / Reboot with lid sernsor
• Intel Gigabit Ethernet
• Wifi, Bluetooth, Airdrop, Handoff, Continuity, Sidecar wireless
• iMessage, FaceTime, App Store, iTunes Store Generate your own SMBIOS
• DRM support iTunes Movies, Apple TV+, Amazon Prime, Netflix and others
• Speakers and headphones jack fairly good volume
• Batteries very stable and precise capacity tracking
• Keyboard map and hotkeys with ThinkpadAssistant thanks to @MSzturc
• Trackpad, Trackpoint and physical buttons with all macOS gestures working thanks to VoodooRMI
• SIP and FileVault 2 can be enabled
• miniDP and HDMI with digital audio passthrough
• SD Card Reader slow r/w speed but works

• Internal monitor turns black when external is connected
• Safari DRM
• WWAN (needs to be implemented)
• Fingerprint Reader

macOS 10.15.7, EFI release 0.6.2