macOS 15 Sequoia on Unsupported Macs Thread

[jon8214]

just got hold of a MacBook Pro 9,1 and installed sequoia as I have done with many of my unsupported Macs, everything works as expected except bluetooth. It is greyed out although wifi worked straight away. Have tried safe boot, uninstall and reinstall root patches but nothing works. Also for info it shows in system information under USB but not under Bluetooth.

Anyone seen this and has any idea of a fix? thanks

 

[MacinMan]

just got hold of a MacBook Pro 9,1 and installed sequoia as I have done with many of my unsupported Macs, everything works as expected except bluetooth. It is greyed out although wifi worked straight away. Have tried safe boot, uninstall and reinstall root patches but nothing works. Also for info it shows in system information under USB but not under Bluetooth.

Anyone seen this and has any idea of a fix? thanks

Before upgrading, were you able to confirm Bluetooth worked under the latest supported OS for that model? "Just to rule out hardware issues"

 

[xboxbml]

just got hold of a MacBook Pro 9,1 and installed sequoia as I have done with many of my unsupported Macs, everything works as expected except bluetooth. It is greyed out although wifi worked straight away. Have tried safe boot, uninstall and reinstall root patches but nothing works. Also for info it shows in system information under USB but not under Bluetooth.

Anyone seen this and has any idea of a fix? thanks

I don't know if it's a coincidence, but one I had found in the recycle bin at work did the same thing to me.. It was working when I got it and I loaded supported OS on it. Upgraded to 16gb RAM and 1TB SSD. BT worked fine. I kept it on supported for several days then loaded Sonoma. Kept that for a bit and still fine. Then loaded Sequoia. BT died. Went back and for between supported and Sonoma Sequoia several times. BT dead. Sent away for a replacement WIFI/BT card. Started on supported OS. Worked fine. Sent to Sonoma. Worked fine. Stayed on Sonoma for a while. Worked fine. Sequoia and OCLP had been updated so I decided to try Sequoia again. BT died. Went back to supported and staying on it. Not gonna spend the 70$ for a new card. I have my 2015s. That 2012 was just to play with.

 

[jon8214]

Before upgrading, were you able to confirm Bluetooth worked under the latest supported OS for that model? "Just to rule out hardware issues"

yeah I did a recovery to Catalina first to check the device was all working and bluetooth defo worked

 

[jon8214]

I don't know if it's a coincidence, but one I had found in the recycle bin at work did the same thing to me.. It was working when I got it and I loaded supported OS on it. Upgraded to 16gb RAM and 1TB SSD. BT worked fine. I kept it on supported for several days then loaded Sonoma. Kept that for a bit and still fine. Then loaded Sequoia. BT died. Went back and for between supported and Sonoma Sequoia several times. BT dead. Sent away for a replacement WIFI/BT card. Started on supported OS. Worked fine. Sent to Sonoma. Worked fine. Stayed on Sonoma for a while. Worked fine. Sequoia and OCLP had been updated so I decided to try Sequoia again. BT died. Went back to supported and staying on it. Not gonna spend the 70$ for a new card. I have my 2015s. That 2012 was just to play with.

thanks mate defo sounds the same issue as mine, must be an issue with OCLP and this model with the BT in it

 

[xboxbml]

thanks mate defo sounds the same issue as mine, must be an issue with OCLP and this model with the BT in it

that's what I was starting to think when I was having the issue.. OCLP/Sonoma worked fine. it worked fine until I loaded OCLP/Sequoia. Then same thing with new card.. it's a shame really. Not that I use BT much with any Mac I have.. Oh well. I might load Linux on it now and play some more.

 

[Bigwaff]

@xboxbml / @jon8214
Not mentioned but have tried reset nvram?

Reset NVRAM on your Mac - Apple Support

If one or more settings stored in NVRAM don't work as expected on an Intel-based Mac, resetting NVRAM might help.

support.apple.com

 

[jon8214]

@xboxbml / @jon8214
Not mentioned but have tried reset nvram?

Reset NVRAM on your Mac - Apple Support

If one or more settings stored in NVRAM don't work as expected on an Intel-based Mac, resetting NVRAM might help.

support.apple.com

Yeah I've done an NVRAM reset a couple of times and also SMC Reset still exactly the same, thanks

 

[xboxbml]

@xboxbml / @jon8214
Not mentioned but have tried reset nvram?

Reset NVRAM on your Mac - Apple Support

If one or more settings stored in NVRAM don't work as expected on an Intel-based Mac, resetting NVRAM might help.

support.apple.com

Dude... tried everything. Somehow the BT in the WIFI/BT card gets fried.. Not sure if there's something wrong with this Mac on the system board or what, but when I load OCLP/Sequoia, the BT fries shortly after.

 

[makra]

Dude... tried everything. Somehow the BT in the WIFI/BT card gets fried.. Not sure if there's something wrong with this Mac on the system board or what, but when I load OCLP/Sequoia, the BT fries shortly after.

My BT works fine. Could there be different cards in those machines? Mine identifies as BCM_20702A3.

 

[xboxbml]

My BT works fine. Could there be different cards in those machines? Mine identifies as BCM_20702A3.

Not sure.. It's been quite a while since I worked on it so I don't remember what I pulled out or put back in. I did just pull it out of the closet and loaded Linux Mint on it.. I'll see if I can find the original card and look for numbers..

 

[xboxbml]

My BT works fine. Could there be different cards in those machines? Mine identifies as BCM_20702A3.

I found my order. It was from iFixit.
MacBook Pro Unibody (Early 2011-Mid 2012) AirPort/Bluetooth Board
Used / Bluetooth 4.0

MacBook Pro Unibody (Early 2011-Mid 2012) AirPort/Bluetooth Board

Replace a 802.11n AirPort Wi-Fi and Bluetooth Board compatible with Early 2011 to Mid 2012 Unibody MacBook Pro laptops. Part #661-5867. Model #BCM94331PCIEBT4AX. Bluetooth 2.1.

www.ifixit.com

You have to do the pulldown and select the BT4.
That's the one I got. I just found the original card. On the shield its printed:
Model BCM94331PCIEBT4
FCC ID: QDS-BRCM1055
IC: 4324A-BRCM1055

Not sure I want to spend that money to replace it again... I might..

 

[flang]

seems to be supported, but has anyone done the deed?
any issues to be aware of?

 

[Bigwaff]

seems to be supported, but has anyone done the deed?
any issues to be aware of?

Legacy Metal GPU

Legacy Metal Graphics Support and macOS Ventura - Sequoia · Issue #1008 · dortania/OpenCore-Legacy-Patcher

With the forth coming release of OpenCore Legacy Patcher v0.5.0, systems with legacy Metal GPUs will finally be able to achieve graphics acceleration in macOS Ventura! Reminder: These patches are s...

github.com

 

[K two]

macOS 15.6b4(RC) installed atop 15.6b3 OTA, OCLP v.2.4.0, performs as expected.
👏

 

[Macdctr]

Installed MacOS 15.6 Beta 4 using OCLP 2.4.0 on my MacBook, updated post install patches and everything works as expected.

 

[amaze1499]

A walk in the park: OTA update to 24G84 using 2.4.0. done without lifting a finger.

 

[K two]

The installer cites Beta 4, the Developer page sez RC (24G84) https://developer.apple.com/download/ 🤷‍♂️

 

[JimmyT72]

just got hold of a MacBook Pro 9,1 and installed sequoia as I have done with many of my unsupported Macs, everything works as expected except bluetooth. It is greyed out although wifi worked straight away. Have tried safe boot, uninstall and reinstall root patches but nothing works. Also for info it shows in system information under USB but not under Bluetooth.

Anyone seen this and has any idea of a fix? thanks

This is from the 'macOS 14 Sonoma on Unsupported Macs Thread', comment # 2024 on page 81. It worked for me in Sonoma.

 

[peppolone]

I'm experiencing frequent and consistent crashes with Safari on the latest macOS 15.6 beta 4 (24G84). This issue has been happening with previous beta versions as well, but it seems to be getting worse.

A key detail is that the crash is reproducible. If Safari crashes when loading a specific website, it will crash again every single time I try to reload that same site. I have already tried clearing all of Safari's cache and website data, but that does not solve the problem for the affected sites.

Initially, this only happened with a couple of websites, but recently the issue has started affecting more sites, including AI Studio, which was working fine before.

Based on the crash logs, I suspect it might be related to rendering favicons or other images on these specific web pages. The crash report points to a "Floating point exception" (EXC_ARITHMETIC (SIGFPE)) happening on the main thread. The crashing module is the ImageIO framework, and the function appears to be related to converting HDR images using Metal (HDRImageConverter_Metal). The process seems to be initiated by WebKit when trying to create icon data from bitmaps.

Here are the key details from the crash log:

Crashed Thread:        0  Dispatch queue: com.apple.main-thread

Exception Type:        EXC_ARITHMETIC (SIGFPE)
Exception Codes: 0x0000000000000001, 0x0000000000000000
Termination Reason: Namespace SIGNAL, Code 8 Floating point exception: 8

Thread 0 Crashed::
0   ImageIO                               0x7ff80e902f08 -[HDRImageConverter_Metal convertImage:transform:toImage:transform:] + 514
1   ImageIO                               0x7ff80e8f3e2a -[HDRImageConverter convertImage:toImage:] + 1066
2   ImageIO                               0x7ff80e8e5da7 IIOConvertHDRData + 235
...
8   ImageIO                               0x7ff80e88c8c7 CGImageDestinationAddImage + 1262
9   WebCore                               0x7ff9075a6e32 WebCore::createIconDataFromBitmaps(...) + 194
10  WebKit                                0x7ff908fbbb03 ...

 

[amaze1499]

I'm experiencing frequent and consistent crashes with Safari on the latest macOS 15.6 beta 4 (24G84). This issue has been happening with previous beta versions as well, but it seems to be getting worse.

A key detail is that the crash is reproducible. If Safari crashes when loading a specific website, it will crash again every single time I try to reload that same site. I have already tried clearing all of Safari's cache and website data, but that does not solve the problem for the affected sites.

Initially, this only happened with a couple of websites, but recently the issue has started affecting more sites, including AI Studio, which was working fine before.

Based on the crash logs, I suspect it might be related to rendering favicons or other images on these specific web pages. The crash report points to a "Floating point exception" (EXC_ARITHMETIC (SIGFPE)) happening on the main thread. The crashing module is the ImageIO framework, and the function appears to be related to converting HDR images using Metal (HDRImageConverter_Metal). The process seems to be initiated by WebKit when trying to create icon data from bitmaps.

Here are the key details from the crash log:

Crashed Thread:        0  Dispatch queue: com.apple.main-thread

Exception Type:        EXC_ARITHMETIC (SIGFPE)
Exception Codes: 0x0000000000000001, 0x0000000000000000
Termination Reason: Namespace SIGNAL, Code 8 Floating point exception: 8

Thread 0 Crashed::
0   ImageIO                               0x7ff80e902f08 -[HDRImageConverter_Metal convertImage:transform:toImage:transform:] + 514
1   ImageIO                               0x7ff80e8f3e2a -[HDRImageConverter convertImage:toImage:] + 1066
2   ImageIO                               0x7ff80e8e5da7 IIOConvertHDRData + 235
...
8   ImageIO                               0x7ff80e88c8c7 CGImageDestinationAddImage + 1262
9   WebCore                               0x7ff9075a6e32 WebCore::createIconDataFromBitmaps(...) + 194
10  WebKit                                0x7ff908fbbb03 ...

Empty caches. Also you might want to delete: ~/Library/Saved Application State/com.apple.Safari.savedState

Switched off extensions? Same issue with Safari Technology? Same issue in a different user?

 

[peppolone]

Empty caches. Also you might want to delete: ~/Library/Saved Application State/com.apple.Safari.savedState

Switched off extensions? Same issue with Safari Technology? Same issue in a different user?

To be honest, I skipped disabling extensions and deleting the savedState file, as the crash log points very specifically to a low-level issue in the ImageIO framework, which is unlikely to be affected by those factors.

However, I followed your most effective suggestion and tested it directly with a new user account. Unfortunately, even on a completely clean user profile, the issue is identical: Safari crashes on the very same websites.

This pretty much confirms that the cause isn't related to my profile or cache, but is a system-level incompatibility, specific to my hardware setup with OCLP. The crash log pointing to HDRImageConverter_Metal strongly suggests that the new HDR image handling in this macOS beta is conflicting with my GPU drivers.

For this reason, my next step will be to try forcing the use of only the integrated graphics card first, and then only the discrete card (the GT 750M). This test should help me determine if the problem is specific to the patched NVIDIA drivers for the 750M or if it occurs with both GPUs.

 

[amaze1499]

To be honest, I skipped disabling extensions and deleting the savedState file, as the crash log points very specifically to a low-level issue in the ImageIO framework, which is unlikely to be affected by those factors.

However, I followed your most effective suggestion and tested it directly with a new user account. Unfortunately, even on a completely clean user profile, the issue is identical: Safari crashes on the very same websites.

This pretty much confirms that the cause isn't related to my profile or cache, but is a system-level incompatibility, specific to my hardware setup with OCLP. The crash log pointing to HDRImageConverter_Metal strongly suggests that the new HDR image handling in this macOS beta is conflicting with my GPU drivers.

For this reason, my next step will be to try forcing the use of only the integrated graphics card first, and then only the discrete card (the GT 750M). This test should help me determine if the problem is specific to the patched NVIDIA drivers for the 750M or if it occurs with both GPUs.

Keep me on the loop

 

[jackson6]

I plan to get a (2012 or 2013) iMac 27", if i don't plan to open up the iMac to replace the HDD with an SSD, what is the latest recommended MacOS i should install with OCLP?

I am not sure if this is true or not but I read that some later versions of MacOS only runs well on SSDs?

Asking because I am still thinking whether I should update it to sequioa or should i stick with a lower version of MacOS? (if so, which version of MacOS is best for a spinning HDD)?

 

[Shadow Demon]

I plan to get a (2012 or 2013) iMac 27", if i don't plan to open up the iMac to replace the HDD with an SSD, what is the latest recommended MacOS i should install with OCLP?

I am not sure if this is true or not but I read that some later versions of MacOS only runs well on SSDs, is that true?

Asking because I am still thinking weather I should update it to sequioa or should i stick with a lower version of MacOS

(if so, which version of MacOS is best for a spinning HDD)?

I have had great experience with Monterey on a 2012 Mac Mini with a 500GB HDD. Of course, upgrading to 16GB and keeping the memory pressure low enough to avoid virtual memory page in/outs has been helpful. Plus, I have stripped down various background processes like Spotlight. I have thought of upgradng to Sonoma but would definitely avoid Sequoia.