Sandisk SSD: Can't open files transferred from Android phone
Hello!
I just transferred files from my Huawei phone on my new Sandisk Extreme 1 TB SSD. I can see the files correctly named in my MacBook Pro finder but can't open them as their format isn't supported. I tried reformatting the hard drive to the APFS format following a youtube video but that fails too, as it is "used by process 1638 diskimagesiod". What to do, what to do...?
Thanks!
MacBook Pro 13″