Jake Lo

Instead of replacing kext(s) from older MacOS, try injecting with this modified kext(s). No need to delete or replace IO80211Family.kext https://www.insanelymac.com/forum/files/file/1008-io80211family-modif/

Try this to see if it'll run in Mojave before upgrading to Big Sur Replace the whole EFI folder in the EFI partition or create and USB boot disk with this EFI folder (rename the attached folder to EFI) Note: If you have the Intel Wifi /BT computer, replace Config with Config-IntelWifi 7370_OC_063.zip

disable AppleDebug, ApplePanic, DisableWatch Dog to mount EFI, I use an app call ESP Mounter Pro.app

No need to take out kexts, you can disable/block them by pressing the spacebar at the Clover GUI.

This is what I have on my 7040 with HD530. DP ports works perfectly with 1440p, don't have 4k to test. Keep an untouched bootable USB handy if these change won't work for you.

You can just disable one of the VoodooInput.kext in the Config file. It's causing config. Disable v1.0.7, you can check which plugin in VoodooI2C or VoodooPS2Controller has the newer version.

ok, then try adding this. could possibility be your DP is on a different port other than 105 or 204 framebuffer-portcount = 4 <number>

v4910 might not be able to boot catalina 10.15.7 Replace your USB Clover files with my generic Clover file v5119. Just keep your kexts/ACPI folder and Config.plist

Follow my Clover guide to create USB installer Use EFI file found here Make sure to set BIOS to load default 1st then go back to set to the following UEFI AHCI Secure Boot disable

try adding this enable-hdmi20 =1 to deviceproperties for graphics add to boot arg -cdfon

try adding enable-hdmi20

As far as I know, DW1510 is wifi only, no BT. Only the DW1550 is a combo wifi/BT. Perhaps you E6230 has 2nd device that has BT.

@fndklm You could try replacing VoodooHDA with AppleALC.kext with layoutid= 11, 13, 14, 16 or 56 whichever works best Add NoTouchID.kext to fix the freezing issue

post IOReg file with IORegistryExplorer.app, if you need help with the SD Card reader

try creating a new boot option in the BIOS, point it to /efi/oc/opencore.efi

Switch MBP14,3 to MBP14,1

At the OC picker, select Reset NVRam, hit spacebar if you don't see that.

did you set the BIOS setting according to the guide?

Lenovo T490 - OpenCore !Warning! Warning! Warning! Follow guide at your own risk, neither I nor OSXL will take responsibility if the process bricked your system. When I first build this system with OpenCore, after selecting Reset NVRam it bricked my system. It'll never boot to POST again. I had tried draining the battery, taking out the CMOS battery, taking out the internal battery and let system sit for days, all in vain. Luckily the system was still under warranty so I was able to get the system board replaced. I had since rebuild the system but never to use Reset NVRam on this system again. I can't remember what version of BIOS it had at the time nor which version of OpenCore. I also have a T480 and don't have this issue with Reset NVRam, so it could be a BIOS issue. Others have reported similar issue here for Lenovo systems. Dortania recommend resetting NVRAM by updating the BIOS on machines with these issue instead. Specification: Bios: 1.72 EC version 1.24 CPU: Intel Core i5-8365U Whiskey Lake Memory: 1x 8GB DDR4 2400Mhz (Soldered + 1 open slot) Harddrive: 1x 256 PCIeNVMeOPAL Display: 14" non-touch 1920x1080 IPS, anti-glare GPU: Intel UHD 620 Camera: 1x IR Camera & RGB 720p HD Camera & Mic with Thinkpad Privacy Shutter IR: VGA maximum (640x720) WLAN: Intel Wireless-AC 9560 2x2ac with BT5.1 (Soldered on) Battery: 3 Cell 50Whr Li-Ion internal battery - Up to 16.11 hours* Touchpad: Synaptics Audio: Realtek HDA ALC257 2 x USB 3.1 Gen 1** (one Always On) 1 x USB 3.1 Gen 1 Type-C (Power Delivery, DisplayPort, Data transfer) 1 x USB 3.1 Gen 2 Type-C / Intel Thunderbolt 3 (Power Delivery, DisplayPort, Data transfer) MicroSD card reader Headphone / mic combo Micro-SIM slot HDMI 1.4 RJ45 Gigabit Ethernet BIOS Settings: Working: Keyboard (including all Fn keys) Trackpad with gestures / Trackstick Battery indicator Display auto brightness Audio (Internal and headphone jack) Microphone Ethernet GPU acceleration Camera Intel Wireless / Bluetooth (soldered in so can't be replaced) Sleep / Wake Native CPU power management HDMI video and audio Thunderbolt MicroSD card reader USB-C to HDMI Video and audio works USB-C to USB-C Video (Audio works after closing and opening LID) Installation: Download MacOS Ventura / Monterey / Big Sur / Catalina app Format a 16GB USB drive (GUID / Extended (Journaled)) Create USB Installer with createinstallmedia command Download attached folder and rename as EFI Mount EFI partition and add EFI folder Configure BIOS setting according to guide Boot with USB installer Complete installation Post Installation: Mount EFI partition of newly installed drive and copy EFI folder over Update / Change in Config.plist under PlatformID->Generic (use genSMBIOS or Hackintool.app) MLB, ROM, SystemSerialNumber and SystemUUID Install ThinkpadAssistant.app (attached), set it to Launch at Login Note bootpack include AirportItlwm for Intel wifi but won't work with hidden networks Use Itlwm.kext + Heliport.app instead if you connect to hidden network Thinkpad Assistant Features: Resources: https://dortania.github.io/OpenCore-Install-Guide/ https://github.com/yusifsalam/t490-macos https://github.com/MSzturc/ThinkpadAssistant https://github.com/VoodooSMBus/VoodooRMI https://github.com/OpenIntelWireless/itlwm https://github.com/cholonam/Sinetek-rtsx https://github.com/1Revenger1/ECEnabler/releases https://github.com/0xFireWolf/RealtekCardReader/releases Updated to OC 0.9.4 - Supports Ventura / Monterey / Big Sur T490_OC_0.9.4.zip T490_OC_0.8.5.zip T490_OC_0.7.4.zip T490_OC_0.6.8.zip T490_OC_0.6.4.zip ThinkpadAssistant.app.zip

I've uploaded new bootpack here See if that helps. I've read a few users had this issue and so far no solution found. My thought is bad NVRam, try clearing it

Remove SSDT-PM.aml since it's for i7-3540M or if you have generated your own SSDT for your CPU, rename it to SSDT-PM.aml

Catalina or Mojave? 10.14.6 is Mojave If Catalina, support stopped for DW1510 @ Mojave. See here Basically you'll need to restore the wifi kext from Mojave included in that link

try Fn+s and Fn+b for brightness control Yes, you can remove the layout-id from device properties and add it to boot arg instead. Test each one and see which works best.

what wi-fi device does it have? did you select 'Reset NVRAM' at OC picker after the changes?

Have you tried layout-id 3, 13, and / or 15 for audio? Have you tried rebooting manually and see if there's a new boot option? You can download a full app from your 7400 and create an USB installer. Boot from your current EFI and select the Installer from the picker