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[Solved] MSI h270m BIOS Upgrade

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Joined
Dec 13, 2017
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Motherboard
MSI H270M Mortar Arctic
CPU
i7-7700K
Graphics
RX 580
Mac
  1. MacBook
  2. MacBook Pro
Mobile Phone
  1. iOS
Hey all, I needed to update my BIOS on my MSI h270m Mortar Arctic. I upgraded to 7A69vB6 (was on 7A69vB0) and now nothing will boot. I can select a USB install drive or my previously working Mojave install but they crash after the apple logo shows for about 5 seconds.

I've tried the various aptio memory fixes and i tried this patch but no combination appears to work. I have also tried to downgrade my BIOS back to what it was, but that doesn't appear to work either. Has anyone managed to get this working at all for the latest Mojave?
 
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