kext VS OcBinaryData

do you have both USBToolBox.kext and UTBMap.kext? you need both USBToolBox.kext and UTBMap.kext for USBToolBox to function. https://github.com/USBToolBox/tool https://github.com/USBToolBox/kext

https://github.com/USBToolBox/toolhttps://github.com/USBToolBox/kext

Output from usb mapping is UTBMap.kext. Then you add USBToolbox.kext

If you have access to windows, this is a good usb mapping script. https://github.com/USBToolBox/kext. Heaps of guides around.

USBtoolbox, UTBmap

Do the usb mapping with USBToolboxadd Toolbox.kext too

Next, head here (https://github.com/USBToolBox/kext/releases)

Before you install OSX on the target machine, install Windows 10 or Windows 11 first. Make sure that ALL of your drivers for Windows 10 or 11 are installed (especially your chipset drivers). Use the Windows version of USBToolBox, and map your ports per their instructions (basic instructions are on the same page with the utility). Grab that here: https://github.com/USBToolBox/tool. Run the Windows.exe version (your antivirus software will go nuts trying to run this on your machine, either allow it, or rename the executable after unpacking it). Copy the created kext (called UTBMap.kext) file this program creates onto a separate flash drive to use after MacOSX is installed. Next, head here (https://github.com/USBToolBox/kext/releases), and grab the two kexts (USBToolBox.kext and UTBDefault.kext) within the zip file. Unpack, and put them in your EFI/OC/Kexts folder on your bootable USB drive. Use ProperTree to open the config.plist on your bootable drive, do an OC Clean Snapshot (this updates the config.plist with the new kexts you added), and SAVE.

HfsPlus.efi is missing, get that from this link and then put it in your Drivers folder: https://github.com/acidanthera/OcBinaryData/blob/master/Drivers/HfsPlus.efi

Fixed loading macOS with legacy boot without Apple Secure Boot: there is a new PE (Portable Executable) loader that broke legacy boot, blocking the loading of legacy drivers as HfsPlusLegacy and preventing OpenCore from booting on legacy systems when Apple Secure Boot is disabled. With this fix, legacy boot can work with or without Apple Secure Boot. This issue was detected after version 0.8.8 was released. While you are on 0.8.8, you must download the new versions of the drivers HfsPlusLegacy and ExFatDxeLegacy (the one/s that are necessary), available in Acidanthera. This is not required if you are on OpenCore 0.8.9.

Update Resources as well: https://github.com/acidanthera/OcBinaryData

Check if you have the latest resources Folder (included in OC Binary Data)

Copied from the latest OcBinaryData

I'm able to download and open up the zip as instructed, but as far as dropping the "ExFatDxeLegacy.efi" file into the right location on my ESP (which I understand to be my boot drive, where OCLP was originally installed), I'm at a total loss.

Have you tried downloading the version from https://github.com/acidanthera/OcBinaryData ?