Mobile X10 USB OTG flash drive not detected on Droid RAZR MAXX

[comandoed]

I have Android 4.1.2. and when I insert Mobile X10 usb flash drive in phone
and then go to Setting>Storage I dont see it there. Also when I go to ES File Explorer
or Astro File Manager I dont see it there.

Is there something I have to do before it is recognized?