How to Fix macOS Big Sur 11.2.2 on HP ProBook 430 G5! Finally working!

By Ufuk Durgun
0

How to Fix macOS Big Sur 11.2.2 on HP ProBook 430 G5! Finally working!

This mini-guide provides a structural approach to troubleshoot and fix the issue.

Prerequisites

  • Confirm your hardware specifications (CPU, GPU, Motherboard).
  • Ensure you have a bootable recovery USB and backup your EFI.

Fix Steps

  1. Verify your network controller model (Intel, Broadcom, Realtek).
  2. Ensure the correct kext (e.g., AirportItlwm or BrcmPatchRAM) is loaded in your config.
  3. Clear network interfaces and reset NVRAM if changes don't apply.

Verification

  • Reboot and verify if the functionality is restored and stable under typical usage.

Original Question:

  • CPU : Intel Core i78550U (Kaby Lake Refresh)
  • GPU : Intel UHD 620 (in-built)
  • RAM : DDR4 16 GB
  • Laptop : HP ProBook 430 G5
  • Audio : no idea
  • Ethernet Card : Realtek 8111 something idk
  • WiFi/BT : Intel(R) Dual Band Wireless AC 8265
  • Touchpad : Synaptics I2C Trackpad
  • BIOS : latest version downloaded from HP's website
  • Guide : referred to a YouTube video to create Catalina bootable USB, then upgraded to Big Sur
  • What's not working : AirDrop, iMessage, FaceTime (so far)

I used a GitHub repo for the EFI, since I was unable to boot using the ones I made myself. I also used AirportItlwm and IntelBluetoothFirmware kexts as those were not used in the EFI I downloaded and were required for my laptop. I also had to change the Misc>Security>SecureBootModel value to "Default" in my config.plist as some kexts weren't loading without it. Also, I disabled the boot chime because it woke up my mom :-)

As of now, I have Windows installed on a 128GB SSD in my laptop, and I partitioned my 1TB HDD into 3 parts and I intend to use them as follows:
Partition 1 (500GB) - Windows storage (can be used by Mac)
Partition 2 (250GB) - MacOS
Partition 3 (250GB) - Kali Linux
I plan to use Windows for gaming, macOS for work and GarageBand and Kali Linux for some casual penetration testing and creating backdoors for fun (for personal use, not harm intended)
I haven't yet installed Kali on the HDD but I'm very sure I will do it in the near future and set up a fully functioning triple-boot laptop.


submitted by /u/HornyScientits

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