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LanXess

macrumors newbie
Apr 3, 2020
1
0
Germany
PM sent, read the instructions, look at the photos, disable SIP, do the BootROM dump etc.
Hi tsialex,
I have exactly the same Problem as Flocarino...
I´m going bananas the Firmware Update just won't work.
Used my old HDD with El Capitan and even did a clean install on an SSD
Tried all the things mentioned above -> always error 5570 -> crazy .

One thing that I also realised that i just also can´t boot from an USB Bootdrive (tried 3 different brands)

Would you be so kind as to send me the mentioned reconstruction 140.0.0.0.0 for your MP4 and instructions?

Many many thanks
 
Last edited:

tsialex

macrumors G5
Jun 13, 2016
12,728
12,973
Hi tsialex,
I have exactly the same Problem as Flocarino...
I´m going bananas the Firmware Update just won't work.
Used my old HDD with El Capitan and even did a clean install on an SSD
Tried all the things mentioned above -> always error 5570 -> crazy .

One thing that I also realised that i just also can´t boot from an USB Bootdrive (tried 3 different brands)

Would you be so kind as to send me the mentioned reconstruction 140.0.0.0.0 for your MP4 and instructions?

Many many thanks
Please read the first post of the thread:


Pay attention to the notes, see what is blocking your upgrade.

Reconstruction is a complex process, takes a lot of time/effort, and it's a last resort only.
 
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