So I just bought a 2018 Mac mini used, the seller did a full wipe and created a generic local account just so that I could verify that the computer was not locked to iCloud etc, and it wasn't, but the computer had Catalina installed, I tried to do an upgrade through online recovery and the first time it allowed me to wipe the drive and install Big Sur over recovery but the installation failed at around 80% maybe. so I went back to recovery and this time it gave me an error saying it could't connect to the server to verify activation lock, I restarted the machine back to recovery and the next time it told me it was iCloud locked and showed an account covered by black dots, later that day I tried different methods to reinstall the OS without luck, trying to enable boot from flash drive required the password from that iCloud account, so I went to recovery one last time and it allowed me to install Catalina instead, after it finished installing it didn't prompt me to reactivate with the previous iCloud account, it allowed me to login to mine and carry on with the initial setup.
I have since been using the computer just fine and gone back to recovery to see it it would prompt me again for its previous user account but there is no traces anymore, is all working fine with mine, what could've happened? could it be that the computer needed to establish a reliable internet connection to update and be removed from the previous account?
also another odd thing I've noticed, right now it has my account and everything is enabled and works fine, find my Mac is enabled under my own iCloud account, however the Activation Lock status shows "Disabled" under System report, again what could be the problem?
I have since been using the computer just fine and gone back to recovery to see it it would prompt me again for its previous user account but there is no traces anymore, is all working fine with mine, what could've happened? could it be that the computer needed to establish a reliable internet connection to update and be removed from the previous account?
also another odd thing I've noticed, right now it has my account and everything is enabled and works fine, find my Mac is enabled under my own iCloud account, however the Activation Lock status shows "Disabled" under System report, again what could be the problem?