Why does my iPhone 16 Pro not recognize an external flash drive?
I have tried everything I know of to get a Flash drive to show up on my iPhone 16 PRO "Locations" screen. It does not show up at all.
iPhone 16 Pro, iOS 18
Some reasons why could be drive compatibility and its power requirements.
For the former, Ensure the flash drive is formatted in exFAT, FAT32, or APFS (read-only) as iPhones do not support NTFS.
For the latter, some drives may require more power than the iPhone can provide its USB-C port. In this case, use a USB hub that uses an external power source.