I have a 2010 iMac 27” (imac11,3). I was previously using OCLP 0.6.2 with Mac OS Ventura 13.3.1, with everything appearing to be okay.
I have just upgraded to OCLP 0.6.7 and Ventura 13.4, and I have encountered two issues.
- Booting (graphical mode) gets to about 50% of the progress bar then stalls. Booting (verbose mode) fails with AMFI: code signature validation failed. Which stalls the boot process, then the watchdog timer expires causing the kernel to panic. Kernel debug appears to be on, so the system sits waiting for a remote debugger connection.
- Bluetooth has stopped working. WiFi is okay.
After some research, I can work around issue (1). When the OpenCore boot picker appears, press the space bar to show the additional options, choose to boot into Recovery. From the Utilities menu start a Terminal. Use diskutil to mount the EFI partition (for me that’s disk0s1). Change directory to the OpenCore folder and edit the config.plist file. Find the boot-args entry and add the amfi=0x80 value to the existing set. This is the way OCLP GUI “disables AMFI”.
Code:
diskutil mount disk0s1
cd /Volumes/EFI/EFI/OC
vi config.plist
# once you are in the visual editor (vi), use the following key sequences
Code:
/keepsyms=1
/</
i
amfi=0x80
<esc>
ZZ
NOTE: there is a space before AMFI string, and <esc> means to press the ESC key.
After further research I have been unable to find a solution for Bluetooth (bluetoothd is crashing). I notice the release notes for Ventura 13.4 mention it resolves an issue with Bluetooth keyboards and mice slowly connecting. I’m guessing that may have caused an issue with the bluetoolfixup KEXT?
Has anyone else encountered the Bluetooth issue, and/or know of a fix?
My 11,3 is a stock configuration except: I have swapped the HDD for an SSD, and I have upgraded the video card to a metal capable card (AMD FirePro W6150M, which is a Bonaire family GCN 1 card. The OEM of this card is Hewlett Packard). The wireless card is the stock legacy card. System Information reports the wifi as Atheros 9280, with the Bluetooth reported as BCM_4350C2.
OCLP root patching detects legacy wireless and AMD legacy GCN.