Wifi "no hardware installed" after High Sierra 10.13 Supplemental Update

[gralls3]

Have you tried these steps?

Is there already an open topic for this issue?

Please include the following information.

• OS Version: 10.13 High Sierra
• Mac model: MacBook Pro (13-inch, Early 2011)
• Dongle or replaced card?: replaced card
• Used dongle/card: BCM94331PCIEBT4CAX Airport card WIFI+BT Bluetooth 4.0 Macbook Pro A1278 A1286

Your Issue: After using Continuity for about a year with no problems even with High Sierra, I installed the High Sierra Supplemental Update (10.13) and my wifi card went missing- "no hardware installed".

Steps done to try to fix the issue: Tried disabling SIP, nothing, Then reset the NVRAM and the SMC, nothing. Then booted into Diagnostics and wifi worked there. Diagnostics showed no problems so I restarted, uninstalled the CAT, and wifi is back.

[sysfloat]

Have you tried to patch the kext again after uninstalling? If the issue still persists please send me the broken kext to [email protected]

[dabrams1]

I'm having this problem as well with the same setup since I updated to High Sierra. And I'm not sure how to uninstall it because the tool aborts since the wifi card is not detected. I have to end up reinstalling High Sierra to re-enable wifi. Is there any fix for this?

[isebastiant]

disable SIP protection. works for me

[dabrams1]

That seemed to fix my problem. Initially I had re-enabled SIP after installing CAT, but keeping it disabled seemed to fix the "no hardware installed" issue. Thanks.