How to Fix DW1820A Big Sur guidance?

By Ufuk Durgun
0

How to Fix DW1820A Big Sur guidance?

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:

Spent hours going through guides and I can not figure this out. Dell e7270 i7 6600u, Big Sur installed fine but wifi and Bluetooth do not work at all. Anyone have experience with this?

submitted by /u/nocapjovian
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