Good afternoon.
I have an iMac 21 "mid-2015 SATA disk (Macintosh HD) and already tried it by the disk utility in recovery mode and I can not make the transition from HFS+ to APFS.
I have already disassembled and mounted the disk by the disk utility and even then, I can not make the transition.
If anyone knows of a solution, thank you.
Thank you.
Tito Portugal
