iPhoneDrive will let you use your iPhone as a flash drive from a file transfer window. No, it won’t give you access to the entire file system and it’s not as transparent as the iPod’s Disk Mode. But for $9.95, it will be good to move your data around until Apple fixes this. [Product page]
https://gizmodo.com/iphone-file-system-hacked-custom-ringtones-to-come-soo-276723
