How to Upgrade HP Laptop 15s eq-1xxx to macOS 26 (Tahoe) without Local Windows Partition

How to Upgrade HP Laptop 15s eq-1xxx to macOS 26 (Tahoe) without Local Windows Partition

Upgrading a Hackintoshed AMD HP Laptop 15s eq-1xxx from macOS Ventura to macOS 26 (Tahoe) presents a unique challenge if macOS is your only operating system. Many guides suggest using Windows tools to build and test your new EFI. However, you can manage this transition entirely within macOS, using a secondary Windows PC only to build a safety recovery USB drive. This guide details how to perform the update safely.

1. Prerequisites

• Hardware configuration: HP Laptop 15s eq-1xxx series (AMD Ryzen CPU with integrated Radeon graphics).
• Required tools: ProperTree, MountEFI, GenSMBIOS, external Windows PC (for fallback boot USB), and USB drive (minimum 16GB).
• Warning: Always backup your current functional Ventura EFI folder to an external FAT32 formatted USB drive before performing any upgrades.

2. Compatibility Snapshot

• macOS 26 (Tahoe) Support: AMD laptop integrated graphics (Vega/RDNA) are not natively supported in macOS and rely on the experimental NootED kext. Ensure NootED has been updated for Tahoe compatibility.
• WiFi and Audio: Realtek WiFi cards typically require HeliPort/itlwm updates, while audio is injected via AppleALC layout IDs.

3. Installation Preparation

1. Create Recovery USB: On the external Windows PC, download the macOS Tahoe recovery DMG using macrecovery.py (from OpenCorePkg) and write it to a FAT32 USB drive with your backup EFI.
2. Mount EFI: On your laptop running Ventura, download MountEFI and run it to mount your internal drive's EFI partition.

4. EFI and config.plist Review

1. Update OpenCore: Update your bootloader (BOOTx64.efi, OpenCore.efi) and bootstrap drivers to the latest versions matching macOS Tahoe requirements.
2. Update Kexts: Update Lilu, VirtualSMC, AppleALC, and especially NootED.kext.
3. CPUID and Quirks: Under your config.plist, verify that AMD kernel patches are active and check that laptop quirks (like RebuildAppleMemoryMap and SetupVirtualMap) are correctly enabled.

5. Post-Installation

1. Test Boot: Plug in your safety USB drive and select the USB EFI from the BIOS boot menu. If it boots successfully into Ventura/Tahoe, you can safely copy this EFI to your internal SSD.
2. Verify Graphics Acceleration: Confirm the UI runs smoothly with Metal support via NootED.

6. Troubleshooting

Reported Issue: Stale Ventura EFI Hanging on Tahoe Boot

1. Early Boot Crash: If the update hangs at a black screen on restart, it means your Ventura EFI lacked Tahoe compatibility. Boot from your backup USB to restore your Ventura desktop.
2. NootED Conflict: If graphics loop during boot, temporarily disable NootED in your config to boot in VESA mode, then download the latest compiler build of the kext.

Common Hackintosh Checks

• Run ocvalidate on your updated plist before restarting to check for syntax structure issues.

7. Dual Boot and Advanced Configuration

• Separate Installer USB: Keep your main partition isolated during the installation by running the update through the macOS App Store installer, booting only via the USB EFI.

8. Verification, Maintenance and Rollback

• Verify: Ensure that hardware sensors (battery, brightness slider) are functional under Tahoe.
• Rollback: If Tahoe stability is insufficient, format the system partition and restore your Ventura system from your Time Machine backup using the Ventura USB boot loader.

9. References and Glossary

• References: Dortania AMD OS X Laptop Guide, Chef Kiss Kexts repositories.
• Glossary: NootED (AMD iGPU driver kext), VESA (standard display driver fallback), MountEFI (EFI mounting utility).