i tried it on my xperia M SS LB rooted [as verified using root checker]
connect the phone via usb MTP
the phone reboots but no change on storaged capacity.
even tried via usb MSC still same persist.
no luck ? im on stock 4.3
XDA Developers was founded by developers, for developers. It is now a valuable resource for people who want to make the most of their mobile devices, from customizing the look and feel to adding new functionality. Are you a developer?