Sony Xperia J ST26i White [21/22] External card also known as ext card is the name for the removable sd memory card in products where there is also internal memory and where this internal memory is referred to in the phone s user interface as the sdcard memory th

White paper | Xperia™ J

19 July 2013

in general save anything to the card. Some applications, for example, a backup service application,

may still be allowed to do so. In effect, this means that some products feature a fourth type of

persistent memory, called “External Card”:

5. External Card (also known as “/ext-card”) is the name for the removable SD memory card in products

where there is also Internal Memory and where this Internal Memory is referred to in the phone’s user

interface as the “sdcard” memory. This External Card memory can generally not be written to from the

phone, but it can be used (by the user) to store content from other sources. For example, you can write

to this memory from a PC when the phone is connected to a PC and when the External Card is

mounted. Some applications on the phone may in some cases, however, also have permissions to

write to the External Card.

Backing up data to different memory types

Generally, you should not save photos, videos and other personal content solely on the internal memory

of a phone. If something should happen with the hardware, or if the phone is lost or stolen, the data stored

on the phone’s internal memory is gone forever.

In a phone where an SD card reader is the main memory, it is relatively easy to take the card out and copy

all content to a PC or Mac, or to an entertainment device with a memory card slot. In a product featuring

Internal Storage as the main memory, it is not possible to physically remove the memory. Instead, any

critical or high-value content must either be transferred over a network (mobile or Wi-Fi) or via a cable. To

facilitate the transfer of data via a cable, the Xperia™ J supports the Microsoft standard, Media Transfer

Protocol (MTP), which makes it possible to easily transfer content back and forth between your phone and

a PC. For Apple Mac computers, a special application is available with built-in support for MTP. This

application can be downloaded from the Xperia™ J Support page.

Note that you do not need to back up or make a copy of applications that you downloaded from Android

Market/Google Play™. They can normally be downloaded again if you have set up a Google account to

work in your phone. You can find the apps which you have purchased under “My apps” in Android

Market/ Google Play™, so you will not need to either pay for or search for them again.