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I just updated my Mac Pro 5.1 from Sequoia 15.7.3 to 15.7.7, using OCLP 2.4.1.

I started the update from the system (Software Update).
At that point, OCLP launched and downloaded something.
Then the restart took a while, and I was a bit worried because my Mac seemed to get stuck at the beginning of the progress bar… 🙂 But after about 10-15 minutes, it continued!

So don't panic, just wait!
Once I got to the session log, the colors were off because macOS had cleaned up the graphics files.
OCLP offered to redownload them, and everything is working perfectly now.

Voilà !
MP 5.1 macOS 15.7.7 (May 2026).png
 
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I just updated my Mac Pro 5.1 from Sequoia 15.7.3 to 15.7.7, using OCLP 2.4.1.

I started the update from the system (Software Update).
At that point, OCLP launched and downloaded something.
Then the restart took a while, and I was a bit worried because my Mac seemed to get stuck at the beginning of the progress bar… 🙂 But after about 10-15 minutes, it continued!

So don't panic, just wait!
Once I got to the session log, the colors were off because macOS had cleaned up the graphics files.
OCLP offered to redownload them, and everything is working perfectly now.

Voilà !
View attachment 2632510
Hello I'm having some problems with my Mac Pro 2009 Mac Pro.

Can you confirm:

1. Safari and App Store app work with out crashing?

2. Your front usb ports work when you connect an iPhone?

Thanks
 
1. Safari and App Store app work with out crashing?
Yes, no problem at all. I tested Safari with no issue, but I don't use it.

2. Your front usb ports work when you connect an iPhone?
Yes both my front USB1.1 ports are functional. Note that under Sonoma and Sequoia (and Tahoe) you must use a USB hub on which you connect your keyboard±mouse to activate the USB ports during install (so that they are detected).
I don't have any iPhone sorry.
 
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What's frustrating for me, is that I use a KVM switch to jump between my PC and Mac Pro.

Which ever boots first, doesn't matter which one. If I'm on the Mac the mouse on the KVM works fine the first time.

As soon as I switch to the PC, which works every time regardless, but when I switch back to the Mac, the mouse is no longer responsive once I switched back to the Mac.

I bought a 2.0 USB hub and hooked it up to the KVM switch, then the mouses to the Mac & PC. Still does the same thing. No response from the mouse on the Mac, once I switch to the PC and back.

Strange deal. Did not do that on Monterey or Mojave I believe, only started doing it when I upgraded to Sonoma and onward.

I have a separate mouse directly to the Mac for use.

Anyone have any idea what might be the issue?

If I stay on the Mac and never switch, it works all day through the KVM switch.

THANKS ALL😉
 
Yes, no problem at all. I tested Safari with no issue, but I don't use it.


Yes both my front USB1.1 ports are functional. Note that under Sonoma and Sequoia (and Tahoe) you must use a USB hub on which you connect your keyboard±mouse to activate the USB ports during install (so that they are detected).
I don't have any iPhone sorry.
Thank you for your reply.

I have several Mac Pros in my Office.

I am on the road to retirement, so I'm trying to keep the computers working for as long as possible.

I have encountered a specific problem on one of the computers, whereby Safari and App Store crash on loading.

The second problem is when I connect an iPhone via USB directly on the computer it will show up in the USB devices tree but it will not mount on the desktop.

The iPhone did mount on the desktop in Sequoia 15.7.4 but not after the update. I have tried various reinstalls with OCLP but to no avail. I have seen this issue reported on other forums but no solution was found.

I will keep trouble shooting the problem.....
 
I moved from Monterey to Sonoma because the software I needed dropped support for Monterey. I used OCLP 2.4.1 and the move to Sonoma worked fine. I did a safari update and now safari can't load web pages. Safari starts up fine but can't load webpages. Does anyone have this problem? I have 4.1->5.1 mac pro with rx460.
 
I moved from Monterey to Sonoma because the software I needed dropped support for Monterey. I used OCLP 2.4.1 and the move to Sonoma worked fine. I did a safari update and now safari can't load web pages. Safari starts up fine but can't load webpages. Does anyone have this problem? I have 4.1->5.1 mac pro with rx460.
Yes there is a thread regarding this issue on this forum. There is a solution posted on that thread.

my experience.... I have several Mac Pros in my office. some of them experience the Safari problem you mention, however other machines do not exhibit the problem 🤷‍♂️

All computers running same version of Sequoia via OCLP 2.4.1

What causes the problem????🤔

I can take a Boot drive with "broken Safari" out of one computer and put it in a computer with a "working safari", I can then use OCLP to install a new EFI, then reinsert the drive back into the original computer and safari works again!!!

Perhaps it's due to OCLP? But it looks like development of OCLP has ceased, so we are stuck.
 
Yes there is a thread regarding this issue on this forum. There is a solution posted on that thread.

my experience.... I have several Mac Pros in my office. some of them experience the Safari problem you mention, however other machines do not exhibit the problem 🤷‍♂️
Can you point to me the thread? I've looked for hours these past few days. English is not my first language and sometimes it's hard to understand what I read. Thank you.
 
Can you point to me the thread? I've looked for hours these past few days. English is not my first language and sometimes it's hard to understand what I read. Thank you.
 
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