Default [Q] Any way for SCH-I545 GS4 4.4.2 in USB Mass Storage??

Trying to recover lost photos but can't get my phone to root so I can try. It is in the internal memory of the device not the SD card.. I have plenty of recovery software programs I have tried and worked on the SD Card which is why I think they are in the internal memory. I am worried to do much with the camera so nothing gets overwritten.

Device: Samsung S4 I545
Provider: Verizon
Android Version: 4.4.2
Kernel 3.4.0
Build KOT49H.I545VRUFNC5

Not rooted

Trying to put it in mass storage but seems like most apps require root access..

Please help.