Trouble erasing disc
Hi, I'm selling my macbook air but when erasing the disk in prep it's failed.. Message says:
Erase process has failed ...
Unmounting disk
Couldn't open device. : (-69877)
Can you please help?!
MacBook Air 13″, macOS 10.15
Question marked as
From recovery mode? Yes.
Actually, I've sorted it now - the default format was Mac OS Extended, I just changed to APFS and it's all worked fine now.
Thanks for replying though and hopefully this helps someone else :-)
