MP 1,1-5,1 Failed Mac Pro 5,1(once 4.1) firmware upgrade to 144.0.0.0.0 version

[Sccjrd]

Hi there.

I've got this Mac Pro (once 4.1) upgraded to the firmware version MP51.0089.B00 and I'm trying to upgrade to Mojave and install the firmware 144.0.0.0.0 to get the boot from NVME option.

I've tried everything the guides online suggested me to troubleshoot.

I've removed every disk except fro the boot-able SSD, removed every PCI-E cards except for the Vega 56 that i need for the upgrade and also resetting the NVRAM and changing also the amount. I've also removed the Logitech receiver to see if it would cause problems but nothing to do

Just to let u know, as keyboard I'm using an old Apple one (A1243) and the Monitor is conected directly with a DP cable.

This are my specs but If anyone has a suggestion that would be lovely.

 

[tsialex]

Read the first post of the stickie thread, pay attention to each note:

MacPro5,1: What you have to do to upgrade to Mojave (10.13/10.14 BootROM upgrades instructions thread)

Please fully read this first post, you will probably find that you have one or more problems described into the various notes below. Mojave will only install if you have upgraded your BootROM to the current release and your Mac Pro have a Metal capable GPU*. If you are trying to install Mojave...

forums.macrumors.com

 

[Sccjrd]

I've actually followed this guide, with paying attention to everything 😭
😭.

Thank you, it's written beautifully btw.

Is there any way to install just the firmware?

 

[tsialex]

You can't just flash the firmware, doing it all the serialization and fine tuning of sensors and ports from the factory will be gone forever.

The only workaround is the BootROM reconstruction service, I'll send you a PM with instructions/required files/service cost/turnaround time.

 

[tsialex]

Btw, did you measured the voltage of the RTC battery?

 

[Lxixboss]

Eureka! I was having the same problem. My cMP 4.1 (flashed to 5.1) was not allowing me to update to bootrom 144.0.0.0.0 no matter how many times I tried. After starting the Mojave update from High Sierra, I would get the message that I needed to update the bootrom. I would shut down then hold down the power button until the long tone. The Mac would restart and I would wind up in the same place. I tried everything: fresh downloads of both High Sierra and Mojave, freshly formatted drive, install from bootable USB, install from High Sierra, remove all PCIe cards except GPU, 5 times NVRAM reset; nothing worked. Then, in an act of desperation, when I dutifully shut down to try to update the bootrom for the umpteenth time, I REMOVED THE GPU (UNFLASHED RADEON HD7850). EUREKA! Held down the power button until the long tone and, for the first time, the optical bay door opened! Although I was doing all this blind, I let the Mac do its thing. After a minute or so, it rebooted. Once the drive noises ended, I shut it down by pressing and holding the power button (Ouch!), I put the video card back in, rebooted; About this Mac; System Report; BOOM! BOotrom version 144.0.0.0.0. Now, let’s get OCLP and Sequoia on this puppy!

 

[krakman]

Now, let’s get OCLP and Sequoia on this puppy!

Be careful, more and more problems are being reported with each update to Sequoia.

More and more software requires AVX2.

The safest bet for a 5.1 is Monterey.

 

[LookToWindward]

Be careful, more and more problems are being reported with each update to Sequoia.

More and more software requires AVX2.

The safest bet for a 5.1 is Monterey.

Totally agree, OC/Monterey has work has worked perfectly for me on a 5,1, 3,1 and a Mac Book Air 2013 for many months