A side rant with some useful information: I had a nightmare week with an office Mac Mini, 2018 . When the employee tried to update to Sequoia, he faced the err

A side rant with some useful information: I had a nightmare week with an office Mac Mini, 2018 . When the employee tried to update to Sequoia, he faced the error-try again conundrum. So logically, I introduced the restore option. Oh boy, what a shitshow. So after faced by 8 hours restore process option, I proceeded to USB installation. Due to T2 restriction, enabling the boot process in restore utility menu is mandatory. Surprisingly, this cannot be done without working installation and admin user. So installing the OS which was the default for the computer and booting again was the next step. Long story short, the Mini stopped working in the middle of the installation. No chime sound. No light. We decided that it is dead for good. And then I got mad. Perfectly working computer bricked by slow and buggy restore process. 8 hours? Did Apple have no money to afford more server speed from Akamai? Or deliberately f&cks up the process, users to go and buy the new stuff? HMM. Solution: So I proceeded to DFU mode with non-recommended cable USB2 to USB-C (from my Logitech mouse, with data capabilities.) You power up the mini by holding the startup button and push the power cable in. USB-C must be connected to the first thunderbolt port after the HDMI input. Then magically you have a connection in your host mac Finder and proceed to restore the T2 firmware. Install as usual from the USB stick and revive the Mini. P.S. Found bits and pieces to come up with this solution from hardware repair forums. If you call your Apple "support" you know the procedure. Come to the store and buy more.