Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Status
The first post of this thread is a WikiPost and can be edited by anyone with the appropiate permissions. Your edits will be public.
Good News FINALLY - after performing the NVRAM reset and proceeding to reinstall Catalina from USB onto a USB partition AND taking all of the Apple updates, I can report my EFI firmware was successfully updated,
View attachment 1959374

(*above screen capture was while booted into Catalina)

Again, I did not touch the internal SSD with OCLP+Monterey and the EFI firmware persisted when booted into OCLP+Monterey. Woohoo!!!

SL booted from OCLP+Monterey still shows EFI firmware at 425.0.0.0.0 with "SIP enabled; SSV disabled".

Wow, that's really great to hear. I'll try that now on my rMBP 10,1
 
OCLP latest dev build, Monterey latest beta, OTA upgrade 2.1GB

For the first time I could use Airplay to Mac from an iMac12,1 to this model in native resolution 2560x1440 with no visual quality loss, really impressive.

Both Macs are connected to the same 100BaseT switch and using the same 5G WiFi. AirPlay depends on quality and resolution on the underlying network technology and most importantly on the hardware support for video compression.

P.S.: My iMacs as all pre 2012 Mac do not get any new firmware upgrades.


12.3beta2.png
 
Last edited:
I just updated my macbook 12 " (8,1) firmware that is on Monterey (OCLP EFI, and for which the firmware was not up to date), on an external USB disk on which I installed a Catalina With a USB Catalina key. After the security update the firmware was well updated from 428.40.10.0.0 to 428.60.3.0.0. No NVRAM reset ...

I tried the same thing on my Mac mini late 2012, but the firmware does not want to update.
I actually replaced the internal HD long ago by an SSD ...

I'm trying to install a mojave and update Catalina online to see if it changes something

To follow, these firmware history are complicated :)

View attachment 1959383
And There you go !

My mac mini firmware is up o date ??

On the Late 2012 Mac Mini 6,2 I went through Mojave installed with a key on an external USB drive, then an update in Catalina online directly offered for the OS Mojave. The firmware of the Mini late 2012 updated well after the security update. I did an NVRAM reset to ensure before updating to Catalina.

I think I could have installed directly from Apple's servers, Catalina on the external USB drive, but hey, let's be crazy :)

I restarted choosing EFI OCLP then Monterey and HOP, I'm home now :)

I just don't know what is SSV ? ??

Capture d’écran 2022-02-15 à 18.30.56.png
 
Last edited:
Finally got the firmware on my rMBP 10,1 from 421.0.0.0.0 to 425.0.0.0.0; after all the updates Silent Knight found no more X's when logged in to Catalina, and just the two expected ones re. SIP/SSV when booted into Monterey/OCLP.

The key to it in my case was a) NVRAM reset, and b) being reminded to use option-boot to bypass the OCLP EFI when reinstalling Catalina from the USB key onto the external OEM SSD. I had forgotten about the option key on boot.

Many thanks to everyone who took the time to shine light on this situation, I continue to learn a lot from you guys. And as someone said earlier, "WhooHoo!"

Screen Shot 2022-02-15 at 1.38.33 PM.png
 
Finally got the firmware on my rMBP 10,1 from 421.0.0.0.0 to 425.0.0.0.0; after all the updates Silent Knight found no more X's when logged in to Catalina, and just the two expected ones re. SIP/SSV when booted into Monterey/OCLP.

The key to it in my case was a) NVRAM reset, and b) being reminded to use option-boot to bypass the OCLP EFI when reinstalling Catalina from the USB key onto the external OEM SSD. I had forgotten about the option key on boot.

Many thanks to everyone who took the time to shine light on this situation, I continue to learn a lot from you guys. And as someone said earlier, "WhooHoo!"

View attachment 1959434
Is NVRAM reset mandatory before OS installation or would it be enough just before log in it?
 
  • Like
Reactions: TimothyR734
Is NVRAM reset mandatory before OS installation or would it be enough just before log in it?
I believe someone posted that OCLP modifies the NVRAM (as 'csrutil status' was showing customized even in Catalina), so it made logical sense to reset it to factory default and install Catalina as vanilla as possible, of course just installing Catalina didn't do it in my case as I had to apply Apple's patches through Software Update within Catalina.
 
Thanks. Do you know if it's disabled by default with OCLP? and how to enable it ?
If you've applied the OCLP post install patches, and have an HD4000 internal GPU, and maybe other things too, yes it gets disabled by OCLP. I would not know how to reenable it, other than removing the post install patches. But then something else would in all likelihood stop working.

What machine are you wanting to do this on?

Edit later, I see your Mac Mini has the HD4000 gpu so you probably applied the OCLP post install patches. As I understand it, the reason OCLP needs to access the sealed volume is that it (OCLP) needs to inject the missing HD4000 kext into the SSV, thereby breaking the seal. Someone will correct me if I'm wrong.
 
Last edited:
OCLP latest dev build, Monterey latest beta, OTA upgrade 2.1GB

For the first time I could use Airplay to Mac from an iMac12,1 to this model in native resolution 2560x1440 with no visual quality loss, really impressive.

Both Macs are connected to the same 100BaseT switch and using the same 5G WiFi. AirPlay depends on quality and resolution on the underlying network technology and most importantly on the hardware support for video compression.

P.S.: My iMacs as all pre 2012 Mac do not get any new firmware upgrades.
iMac2010 Did you change the GPU, if change did you patch?
 
  • Like
Reactions: TimothyR734
Successful update from 12.3b2 to 12.3b3 OTA fully automatic, system post-install patched by OCLP 0.4.3n, flawless performance, except for BlueTooth Magic Mouse unresponsive for seconds, while websites are loading on Safari and Brave browsers.

Anyways, OCLP is a fine piece of intelligent software by highly ingenious developers and contributors. Thank you, members of this thread, as well.
 
Last edited:
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.