I recently picked up a RAZR MAXX HD. On my old phone, I could just plug it into my computer and I'd get two drives (internal storage and external SD card). On the new one, I only seem to have access to the SD card but not the internal storage. Logs show that the USB device is detected, but it cannot be mounted (I'm using Linux). Is there any way to mount the internal storage of this phone (to be able to backup things stored there) without rooting?