I can't Upgrade macOS Sierra to High Sierra in Mac Pro 5.1 Mid 2010

Question

Level 1

8 points

Can Anyone Help

i am a new developer to xcode and need to upgrade to high sierra then Mojave after upgrading the graphic card but at least i need high sierra

I try everything

every time installer said to install macOS High Sierra, a firmware update is required

i called and try apple support agent they try to do best but all solutions failed

and this is my hardware

Mac Pro (Mid 2010) MacOS Sierra 10.12.6 (16G2136)

Processor 3.33 GHz 6-Core Intel Xeon

Memory 32 GB 1333 MHz DDR3

Graphic NVIDIA Quadro K2000 2047 MB

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Model Name: Mac Pro

Model Identifier: MacPro5,1

Processor Name: 6-Core Intel Xeon

Processor Speed: 3.33 GHz

Number of Processors: 1

Total Number of Cores: 6

L2 Cache (per Core): 256 KB

L3 Cache: 12 MB

Memory: 32 GB

Processor Interconnect Speed: 6.4 GT/s

Boot ROM Version: MP51.007F.B03

SMC Version (system): 1.39f11

SMC Version (processor tray): 1.39f11

Serial Number (system): YM13904WEUE

Serial Number (processor tray): J532500FECZJC

Hardware UUID: 4C9403EF-BBAA-5B81-AF72-BF5F4BCD513C

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in addition

i can't see boot menu when i press option key "i think its may cause of graphic card, is that normal?"
i can't access internet recovery by Option-Command-R or Shift-Option-Command-R every time mac runs built-in macOS Recovery system - i try that when i try to install fresh copy from internet but it's instal sierra again

Posted on Dec 18, 2020 12:09 PM