I have a 21 inch late 2013 iMac running macOS Catalina version 10.15.7. I can't restore mac OS despite Shift-Option-command-R combinations on startup and I end up, after some waiting with exclamation mark and the message 2002F. Can anyone help please? Apple support materials don't seem to work (it is connected to the internet)
[Re-Titled by Moderator]
iMac 27″, macOS 14.0
According to How to reinstall macOS - Apple Support —
Try these and report the results.
Failing that, you may be forced to create a bootable installer disk using another machine, but this is a useful thing to keep around afterwards and I think you only need a 16GB USB stick for the bootable installer disk. Download a fresh copy from Apple to make sure that the app signing is up to date.
According to How to reinstall macOS - Apple Support —
Try these and report the results.
Failing that, you may be forced to create a bootable installer disk using another machine, but this is a useful thing to keep around afterwards and I think you only need a 16GB USB stick for the bootable installer disk. Download a fresh copy from Apple to make sure that the app signing is up to date.
Besides the USB Bootable option Mike Smart recommends, might try tis...
Error 2002u… Router needs DNS setting...
I was getting pretty frustrated at this point, but I finally found a post on the Apple Support forums by someone who was having a similar problem to mine (different error code, -2002U if I’m remembering correctly). With only one reply, I didn’t have my hopes up for a way out of this mess. Nevertheless, I looked it over.
The sole solution suggested going into my router settings, changing my DNS to 8.8.8.8 and/or 8.8.4.4 (Google’s public DNS server addresses,) and trying again.
I can't restore macOS Catalina 10.15.7 despite Shift-Option-command-R combinations on startup
