MacBook Pro (2017) no entry 🚫 symbol when reinstalling macOS.
Hello,
So I know this can mean a multitude of things such as hardware incompatibilities, etc, but I’d like to explain what I’ve done and hopefully somebody can shed some light on a solution without me needing to go to an Apple Store. If not, so be it. Just want to avoid the gongshow.
Anyway, so I got a new MacBook Pro. I’m reselling my existing one. It has a 2TB Apple SSD. To start, I booted in to recovery mode and did a hard disk wipe via Disk Utility.
I didn’t have time to reinstall that very moment, so I powered down. Now, since I did a hard disk wipe, going forward any time that I boot into recovery it does internet recovery, which is fine - theoretically.
Anyway, I wait a few minutes while it loads with the spinning globe and then select reinstall macOS. Since my Mac shipped with macOS Sierra, this is the version it attempts to reinstall (I had previously upgraded to Mojave prior to the wipe). Everything goes smoothly initially during the download in internet recovery.
However, every time it reboots after doing this an attempts to load the disk image ‘macOS installer’ it fails. It shows the Apple logo and progress bar, but after a few minutes I get the dreaded no entry 🚫 symbol.
I’ve tried manually loading to it via holding option on boot and the same thing happens. I’ve restarted the entire process from internet recovery multiple times and am having the same issue.
Hardware is not a problem, like I said it worked perfectly hours prior to this before wiping. Is it possibly something to do with Apple forcing it to try and install Sierra after it had already been upgraded to Mojave and it’s causing a firmware incompatibility mismatch somewhere during boot?
If anyone has any ideas as to how I can resolve this on my own, I’d love to hear them.
Cheers
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