MP 1,1-5,1 Tried to update firmware, stuck in boot crash loop. Recovery/safe mode also not working.

[juliancs]

Hello!

I have a 2010 MP I'm trying to upgrade to 10.15 to get the latest version of Logic Pro. I was told I needed a firmware update to install Mojave so I tried to do that, got as far as the flashing light/tone but then it simply booted back into OSX.

I have an RX 580 in there so I don't get the grey boot screen and read this might be an issue. As such I swapped to my old 680 as that is a mac card. I tried the firmware update again, and the computer now crashes during the boot loading screen. It restarts to the "your computer restarted because of a problem, wait a few seconds or .." screen, and repeat.

Rebooting into recovery or safe mode gets stuck around 3/4 of the progress bar.

I'm thinking I could make a USB boot drive and install from there, but I don't really know the status of the firmware update and what would happen if I installed an OSX that required an 'unfinished'/failed firmware update.

I'm a bit out of my depth here so would love any advice! The data on the drive isnt super critical but wouln't mind not losing it.

 

[Macschrauber]

Guess your 680 gone south.

Try another GPU and most important of all, do a Bootrom Backup, maybe there you have a full / corrupt Firmware.

 

[juliancs]

Guess your 680 gone south.

Try another GPU and most important of all, do a Bootrom Backup, maybe there you have a full / corrupt Firmware.

Thanks for the response! Hope not, it was working fine when I packed it away . Since that is my only mac card, I'm unsure if I can install firmware setups without the grey boot screen.

 

[chrfr]

Thanks for the response! Hope not, it was working fine when I packed it away . Since that is my only mac card, I'm unsure if I can install firmware setups without the grey boot screen.

You might read through this thread and also update your subject to be MP1,1-5,1. The 6,1 is the "Trashcan" Mac Pro.