ERROR_8821A52453 when trying to download macOS Big Sur
Hello,
I recently formated my iMac end 2014, running on Big Sur. SSD fully erased.
I now want to reinstall Big Sur from an USB driver at the start ( #R) .I did it already a couple of time, no stranger to this process. Without the USB drive Installer, I can only install Yosemite as only option offered from the iMac.
My issue is : connected to the App Store on my old MacBook Pro 2010 running on High Sierra, I cannot download download Big Sur. Appears this ERROR_8821A52453.
Is there any way to download it from my MacBook Pro or my iMac.
Thank you for your help
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MacBook Pro 15″, macOS 10.13