Who can suggest what to do for me? The problem is as follows: I bought a MacBook Pro 2018 A1989 with the Monterey operating system and wanted to install Ventura. I didn't update Monterey online because I had Ventura on a flash drive. I pressed the Option key to turn on the MacBook, selected my flash drive, then the recovery menu appeared, and I entered Disk Utility. I erased the internal SSD. Then I exited Disk Utility, selected OS reinstall, but a window appeared saying there is no permission to boot from an external disk. Then I read online that this laptop has a T2 chip, and security must be disabled. I went to the Startup Disk Utility, but I can't access the menu because it requires entering the OS administrator password, which I can't do because I erased the operating system. Then I tried to restore the system over the Internet, but I can't do it because it gives an error that there is no connection to the server. In other words, it's a catch-22 - I need to disable security, but I can't do it because I erased the operating system, and I can't update online because it gives an error.
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Issues with installing the operating system on MacBook Pro 2018
- Thread starter bagirik
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To clarify, you tried startup while holding down CTRL +R, and it still will not connect to the internet?
It is my understanding that the CTRL + R function bypasses all of the system settings, and should allow you to connect to the internet. Are you sure that you have a good internet connection?
It is my understanding that the CTRL + R function bypasses all of the system settings, and should allow you to connect to the internet. Are you sure that you have a good internet connection?
There are no issues with connecting to the internet or with the internet itself. After loading the recovery menu, I press the reinstall macOS Hight Sierra button, then the continue button, and after 1-2 minutes, an error message appears "The recovery server couid not be contacted"
Were you logged into iCloud on Monterey before wiping the disk? If so, you will need to remove the MBP from your iCloud account devices list. You then should be able to use Internet Recovery (Option-Shift-Command-R) to reinstall the version of macOS that originally came with the MBP.
If the above doesn't work, then you will need to use Apple Configurator to restore the firmware of the T2 chip in the MBP.
If the above doesn't work, then you will need to use Apple Configurator to restore the firmware of the T2 chip in the MBP.
Revive or restore an Intel-based Mac using Apple Configurator
support.apple.com
Before erasing the disk, I didn't log into my account Apple ID. Regarding the configurator, I was informed about this option by Apple support. I tried connecting, but it didn't work yet. Perhaps the charging cable is not suitable. I ordered another cable USB-c. I will try again when I receive it.
Would this have gone without a hitch if you had simply elected to instal the new OS over the existing one?
Then the system would have warned you that you cannot boot from an external drive unless you disable
the security settings first?
I'm not that good with tech stuff so just trying to understand in case I ever face a similar problem.
When I erased the disk, I didn't think about anything like that because I've done it many times on my iMac 2017 and MacBook 2015. With each passing year, Apple presents new surprises that are not in favor of the buyer.
The thing is, I don't want to spend any extra money. They probably won't do it for free, will they? On top of that, I don't have any documents for this MacBook because I bought it on Facebook.
I don't know what Apple did but you can no longer install High Sierra via internet recovery... You can still install other versions via internet recovery... Tried this on MBP 2015...
Try using option + command + R or shift + option + command + R
How to reinstall macOS
You can also try a bootable flash drive of High Sierra and newer...
Try using option + command + R or shift + option + command + R
How to reinstall macOS
You can also try a bootable flash drive of High Sierra and newer...
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They might do it for free. BUT.... if you brought the MacBook from Facebook, was it logged out of the prior's owners Apple account? Is there some type of lock installed on the machine?
I recommend going to the nearest Apple Store, asking them if they can help reinstall MacOS, and see what they would say. I think they would say yes, but you don't have anything to lose.
If bought on FB, there needs to be a process where the seller not only erases the contents but also
logs into their Apple ID and removes the device from being linked to his/her account.
logs into their Apple ID and removes the device from being linked to his/her account.
I have brought in out-of-warranty MacBooks that were purchased from other people without any documentation, including proof of ownership. They performed diagnostics for free and gave me a quote for any required repairs.