How to Fix Big Sur 11.2.2 Dell Optiplex 5040 SFF

How to Fix Big Sur 11.2.2 Dell Optiplex 5040 SFF

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:

Finally! After banging my head against the wall for several weeks, I finally succeeded! Much of the credit goes to u/Solind9 and u/Drummerboybac, you legends helped me so much, cheers! Hardware: CPU: Intel i5-6500 GPU: Intel HD530 iGPU RAM: 8gb 1600MHz DDR3 Motherboard: Optiplex 5040 standard Ethernet Card: Intergrated (IntelMausi kext) Wifi/BT Card: N/A Working: Everything (including I-Services) Not Working: Sleep :( Originally installed Catalina but was able to update to Big Sur with no problems. Any questions: comment below/send me a message! Keywords: OpenCore, Dortania ​ https://preview.redd.it/iucklwa96zl61.png?width=1920&format=png&auto=webp&s=1dfe73e1048058635417d4ec8916c50390063c81 EFI tree (I hope this is allowed) submitted by /u/bdoxat [link] [comments]