How to Diagnose Macbook air 7,2 can't use airplay to share screen or use as extended display After an OCLP macOS Upgrade
Battery, Touch ID, trackpad, sleep and charging issues can be software symptoms, but they also expose weak batteries, SMC state or model-specific OCLP limits. After an OCLP update, root patches, SMC/NVRAM state and unsupported hardware drivers can disagree until patches are re-applied cleanly.
Quick Checks
- Backup current state: Save a copy of your working EFI and run a full system backup before changing settings.
- Identify hardware components: Note down your exact CPU, GPU, Wi-Fi card, and motherboard/laptop model.
- Ensure utility alignment: Keep OpenCore, OCLP, and ProperTree updated.
Fix Steps
- Create a rollback point: Make a Time Machine backup and keep a copy of your last working EFI folder before editing OpenCore, kexts or root patches.
- Reset low-level state: Reset NVRAM/PRAM and perform the correct SMC reset for your Mac model.
- Re-apply patches: Open OpenCore Legacy Patcher, run Post-Install Root Patch, reboot, then test again.
- Check physical health: Review battery cycle count, service status, charger behaviour and Apple Diagnostics before blaming macOS.
- Test without utilities: Temporarily disable battery limiters, fan tools and login items that may override system behaviour.
- Compare with a stable OS: If the feature matters, test Monterey/Ventura or the last officially supported release.
Do Not Continue If
- Do not continue if: you do not have a working EFI backup, a Time Machine backup, or another bootable macOS installer.
- Stop and capture evidence: if the machine stops booting, take a photo of the last verbose line before changing more settings.
Verify It Worked
- The setting persists across shutdown and cold boot.
- Battery drain is predictable after two full cycles.
- Sleep/wake works without requiring a forced reboot.
- No new root patches are pending in OCLP.
Rollback
- Undo the latest macOS update if the feature is essential.
- Restore a Time Machine snapshot from before the patch.
- Keep the machine on the most stable macOS version for that model.
Next Action
- Test now: reboot twice, reproduce the original problem, and confirm whether the same symptom returns.
- If it still fails: record the Mac model, macOS build, OpenCore or OCLP version, GPU, Wi-Fi/Bluetooth chipset, and the last visible error.
- Read next: use the related searches below for the nearest OpenCore or OCLP fix before making another change.
Related iATKOS Searches
- OpenCore · OCLP · EFI · kexts · config.plist · macOS troubleshooting
Original Question: "Macbook air 7,2 can't use airplay to share screen or use as extended display"
I am using a macbook air 7,2 that is moderately spoofed as a 9,1 macbook. It is running macos 15.1 and I have OCLP 2.3.2. It is able to connect to displays, but when it does, it just displays a dark gray screen instead of what I'm trying to screen share. I can however connect to my ipad and use my trackpad and keyboard on it, but I still have the same issue for using as an extended display or screen sharing. It is able to receive other devices' screen shares though
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Alternative / Duplicate Questions Resolved:
- "cant use Airplay to share my macbook pro m4 screen to imac 2017":submitted by /u/Remarkable-Tart-8831
I have an iMac 2017 4k and installed Sequia. airplay is not showing up. i patched it with OCLP and i can mirror my imac to macbook! But its not working opposite. I cant mirror my macbook m4 to imac. Its just not showing ( imac) on my macbook... i can only use keyboard and mouse.
how to fix?
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