Sony Graphics Tablet E2312 User Manual

White paper  
July 2015  
Xperia™ M4 Aqua Dual  
E2312/E2333/E2363  
 
White paper | Xperia™ M4 Aqua Dual  
Table of contents  
Accessibility and Usability ....................................................................................8  
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Product overview  
The all-terrain smartphone  
The Xperia™ M4 Aqua Dual boasts the highest waterproof and dust resistant rating as well as an  
exceptional up to 2-day battery life. This compact smartphone also includes a 13 Megapixel camera for  
taking photographs on the go and a 5 Megapixel camera for taking selfies.  
Great pictures anywhere  
The Xperia™ M4 Aqua Dual impresses with an ISO sensitivity setting of 3200 and great performance in  
low light conditions. Using the built-in Exmor RS stacked CMOS sensor, HDR technology and Superior  
Auto mode, photos taken using the Xperia™ M4 Aqua Dual are sharp and vivid even in difficult lighting  
conditions.  
Excellent blur-free video  
The Xperia™ M4 Aqua Dual has all you need to make great videos. Capture the action as you go and  
don’t worry about keeping the camera still. SteadyShot™ does that for you by compensating for small  
camera movements or shaking as you record. Meanwhile, the new Movie Creator app adds the ability to  
automatically create highlight reels from the videos and images stored in your album.  
Power saving modes  
STAMINA mode can maximize Xperia™ M4 Aqua Dual’s standby and active usage time by preventing  
apps from running when screen is off and adjusting performance in favor of longer usage time. When the  
battery is fully charged, you can even extend battery life to one-week-long by activating Ultra STAMINA  
mode keeping only basic phone functionalities.  
Move and multi-task  
When you’re multi-tasking over Wi-Fi® or a mobile network, the Xperia™ M4 Aqua Dual delivers the  
speed you need. Download email with attachments in seconds and enjoy video streaming with no delays  
or unwanted buffering. With a Qualcomm MSM8939 Octa-core 1.5 GHz processor and Android 5.0  
Lollipop, you can enjoy seamless multi-tasking and optimal graphics performance.  
Water and dust proof  
Take great pictures in any weather. The Xperia™ M4 Aqua Dual is waterproof and dust-tight. So whether  
you get caught out in the rain, on a sandy beach or a dusty trail, you can still use your device.  
* The Xperia™ M4 Aqua Dual is waterproof and protected against dust, so don’t worry if you get caught in  
the rain or want to wash off dirt under a tap, but remember: all ports and attached covers should be firmly  
closed. You should not: put the device completely underwater; or expose it to seawater, salt water,  
chlorinated water or liquids such as drinks. Abuse and improper use of device will invalidate warranty. The  
the Xperia™ M4 Aqua Dual has a capless USB port to connect and charge. The USB port needs to be  
completely dry before charging.  
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Product specifications  
Operating system  
Processor  
Google™ Android™ 5.0 (Lollipop)  
Snapdragon 615 Octa Core processor (Quad-core 1.5 GHz +  
Quad core 1.0 GHz)  
GPU  
Adreno 405  
Size  
145.5 x 72.59 x 7.3 mm  
135 grams  
Weight  
Available colours  
Black  
White  
Coral  
Silver  
SIM card  
Dual SIM  
Main screen  
Colours  
16,777,216 colour TFT, IPS  
1280x720 pixels  
Resolution  
Size (diagonal)  
Scratch-resistant  
Input mechanisms  
Text input  
5.0 inches  
Yes -Touch panel cover glass  
On-screen QWERTY keyboard,12-key input  
Touch screen  
Touch gesture  
Handwriting recognition  
Memory  
Capacitive  
Yes – multi-touch, up to 4 fingers  
Yes  
RAM  
2 GB  
Flash memory  
Up to 8 GB* (E2312)  
Up to 16 GB* (E2333, E2363)  
Internal Storage  
Up to 3 GB* (E2312)  
(before you update preloaded Up to 11 GB* (E2333, E2363)  
applications)  
Expansion slot  
Camera  
microSD™ card, up to 200 GB  
Camera resolution  
Digital zoom  
13 MP  
4x  
Video recording  
Front Camera  
Yes – HD 1080p  
Yes – FHD 1080p for video chat and 5 MP for camera capture  
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Sensors  
Accelerometer  
Ambient light sensor  
Proximity sensor  
Magnetometer  
Networks  
Yes  
Yes  
Yes  
Yes  
E2312  
UMTS HSPA+ 900 (Band VIII), 850 (Band V), 1700 (Band IV),  
1900 (Band II), 2100 (Band I) MHz  
GSM GPRS/EDGE 850, 900, 1800, 1900 MHz  
E2333  
UMTS HSPA+ 900 (Band VIII), 850 (Band V), 1900 (Band II),  
2100 (Band I) MHz  
GSM GPRS/EDGE 850, 900, 1800, 1900 MHz  
LTE Bands 1, 2, 3, 5, 7, 8, 20  
E2363  
UMTS HSPA+ 900 (Band VIII), 850 (Band V), 1900 (Band II),  
2100 (Band I) MHz  
GSM GPRS/EDGE 850, 900, 1800, 1900 MHz  
LTE Bands 1, 3, 5, 7, 8, 28, 40  
Data transfer speeds  
GSM GPRS  
(upload and download)  
Up to 107 kbps (download), Up to 85.6 kbps (upload).  
Up to 296 kbps (download). Up to 236.8 kbps (upload).  
GSM EDGE  
(upload and download)  
UMTS HSUPA (upload)  
UMTS HSDPA (download)  
LTE (upload and download)  
HAC/TTY support  
HAC  
Cat. 6, up to 5.76 Mbps  
Cat. 24, up to 42.2 Mbps  
Cat. 4, up to 50 Mbps (upload), up to 150 Mbps (download)  
M3/T3 (E2312**)  
Yes (E2312**)  
TTY  
Battery performance  
Talk time (GSM)  
Up to 12 hours 42 min.***  
Up to 493 hours***  
Standby time (GSM)  
Talk time (UMTS)  
Standby time (UMTS)  
Standby time (LTE)  
Music listening time  
Video playback time  
Battery (Embedded)  
Up to 13 hours 17 min.***  
Up to 488 hours***  
Up to 547 hours***  
Up to 64 hours 46 min.***  
Up to 6 hours 57 min.***  
2400 mAh  
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* The E2312 has 3 GB of free memory (before you update preloaded applications) available to the user for  
downloaded applications and their data, music, pictures and movies while the device has up to 8 GB of  
flash memory in total. The E2333 and E2363 have 11 GB of free memory (before you update preloaded  
applications) available to the user for downloaded applications and their data, music, pictures and movies  
while each device has up to 16 GB of flash memory in total. For more details about memory, see “Memory  
** The TTY (Teletypewriter) feature is for deaf or hearing-impaired users. Only the E2312 model supports  
HAC and TTY.  
*** Values are according to GSM Association Battery Life Measurement Technique as performed in con-  
trolled laboratory conditions. Actual time may vary.  
NOTE: Battery performance may vary depending on network conditions and configurations, and device  
usage.  
NOTE: All performance metrics are measured under laboratory conditions.  
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Categorised feature list  
Internet  
Music  
Camera  
Bookmarks  
Album art  
13 megapixel camera  
4x digital zoom  
Auto focus  
Google Chrome™*  
Google Play™  
Bluetooth® stereo (A2DP)  
ClearAudio+  
Google™ search*  
Google Voice™ Search*  
Google Maps™ for Mobile with  
Street view*  
Clear Bass™  
Face detection  
Fast capture  
Flash/Photo light  
Geotagging  
HDR for Movies (Main Camera)  
HD video recording (1080p)  
Image stabiliser  
Quick Launch  
Clear Phase™  
Dynamic normaliser  
Manual equaliser  
SensMe™  
Music application  
xLoud™ Experience  
Red-eye reduction  
Scene recognition  
Self-timer  
Send to web  
Superior Auto  
Smile Shutter™  
Sony Exmor RS® for mobile  
SteadyShot™  
Sweep Panorama  
Touch capture  
Touch focus  
Video stabiliser  
White balance  
Design  
Gesture input  
Communication  
Call list  
Messaging  
Conversations  
Illumination effect  
IPX5 and IPX8 (waterproof)**  
IP6X (Dust tight)  
Conference calls  
Facebook™ application*  
Hangouts™*  
HD voice support  
Loud Speaker  
Multiple IM  
Noise suppression  
Speakerphone  
Email  
Google mail™*  
Handwriting recognition  
Instant messaging  
Multimedia messaging (MMS)  
Predictive text input  
Text messaging (SMS)  
On-screen 12-key keyboard  
On-screen QWERTY keyboard  
Picture wallpaper  
Screen capturing  
STAMINA mode  
Touch screen  
Video screen capture  
Voice input  
Twitter™ application*  
Xperia™ with Facebook™  
Wallpaper animation  
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Connectivity  
Organiser  
Airplane mode  
Alarm clock  
Calculator  
Calendar  
Contacts  
Document readers  
eCompass™  
Notes  
Entertainment  
Media browser  
Motion gaming  
3.5 mm audio jack (CTIA)  
ANT+™ sport, fitness, health sup-  
port  
PlayMemories*  
aGPS*  
Bluetooth® 4.1 wireless  
technology  
DLNA Certified®  
GLONASS  
Radio (FM radio with RDS)  
Sony Entertainment Network***  
Video streaming  
YouTube™*  
Media Transfer Protocol support  
Micro USB support  
Miracast  
Setup guide  
Stopwatch  
Timer  
Native USB tethering  
Media Go™*  
World clock  
NFC  
PC Companion  
Play Anywhere  
Smart Connect  
Synchronisation via Facebook™  
Synchronisation via SyncML™  
Synchronisation via Google™  
Synchronisation with computer  
Synchronisation via Microsoft®  
Exchange ActiveSync®  
USB High speed 2.0 support  
USB mass storage  
Xperia Link™  
Wi-Fi®  
Wi-Fi® Hotspot functionality  
* This service is not available in all markets.  
** The Xperia™ M4 Aqua Dual is waterproof and protected against dust, so don’t worry if you get caught in  
the rain or want to wash off dirt under a tap, but remember: all ports and attached covers should be firmly  
closed. You should not: put the device completely underwater; or expose it to seawater, salt water,  
chlorinated water or liquids such as drinks. Abuse a  
nd improper use of device will invalidate warranty. The device has Ingress Protection rating IP65/68. For  
to connect and charge. The USB port needs to be completely dry before charging.  
*** Sony Entertainment Network with Music Unlimited is not available in every market. Separate  
subscription required. Additional terms and conditions apply.  
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Technologies in detail  
The information presented in this section is a general overview of the technology incorporated into the  
product. However, hardware and software levels of compliance to standards and specifications vary  
between products and markets. For more information, contact Sony Mobile Developer World or the  
relevant Sony representative.  
Accessibility and Usability  
Accessibility and Usability  
Talkback*  
Yes but default is off  
Yes but default is off  
Yes but default is off  
Yes but default is disabled  
Yes but default is disabled  
Yes but default is disabled  
Yes but default is disabled  
Yes but default is disabled  
Yes but default is off  
Yes  
Captions*  
Magnifications gestures*  
Large Text*  
High Contrast Text*  
Power button ends call*  
Auto-rotation*  
Speak Passwords*  
Accessibility Shortcuts*  
Text – to – Speech*  
Touch and hold delay*  
Color Inversion*  
Yes, default is “short”  
Yes but default is disabled  
Yes but default is disabled  
Color correction*  
Hearing Aid Compatibility (HAC) Yes  
Teletypewriter (TTY)**  
Yes (E2312)  
* Android Lollipop feature. Subject to possible change in future releases of Google™ Android™.  
** The TTY feature is for deaf or hearing-impaired users. Only the E2312 model supports TTY.  
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Device-to-device communications (local)  
ANT+™ wireless technology  
Connectable devices  
Some ANT+™ compatible devices may require installa-  
tion of additional software.  
Frequency band  
Data transfer rate  
Encryption  
2.4 GHz  
Up to 60 Kbps  
AES-128  
Topologies  
One to Many, Many to One, Peer to Peer, Star, Practical  
Mesh  
Bluetooth® wireless technology  
Bluetooth® profiles supported  
Advanced Audio Distribution Profile v1.2  
Audio/Video Remote Control Profile v1.3  
Generic Attribute Profile Client/Server over LE  
Handsfree Profile v1.6 (Wide band speech)  
Headset Profile v1.2  
Human Interface Device Profile v1.0  
Object Push Profile v1.1  
Personal Area Networking Profile v1.0  
Core version and supported  
core features  
Version 4.1  
Other supported features  
Connectable devices  
aptX® CD quality audio streaming over Bluetooth®  
Products that support at least one of the profiles listed  
above.  
Bluetooth 4.1 accessories generally require installation of  
a supporting application.  
More information:  
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Wi-Fi®  
Supported standards  
IEEE 802.11 a/b/g/n and Wi-Fi®  
Wi-Fi Direct®, Wi-Fi Protected Setup, Wi-Fi CERTIFIED  
Miracast™  
Connectable devices  
Wi-Fi® access points  
Wi-Fi Direct compatible devices  
Frequency band  
Data transfer rate  
Security  
2.4 GHz / 5 GHz  
Up to 150 Mbit/s  
Open Authentication  
Shared Authentication  
EAP-SIM  
EAP-AKA  
EAP-TLS  
EAP-TTLS/MSCHAPv2  
PEAPv0/EAP-MSCHAPv2  
PEAPv1/EAP-GTC  
WPA Personal and WPA2 Personal  
WPA Enterprise and WPA2 Enterprise  
Encryption  
Power save  
QoS  
WEP 64 bit, WEP 128 bit, TKIP and CCMP (AES)  
WMM-UAPSD  
WMM  
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DLNA Certified® (Digital Living Network Alliance)  
Supported Device Classes  
M-DMS – Mobile Digital Media Server  
Media Types: images, music and video  
Summary: The digital media server exposes the media  
files in your device to a Wi-Fi® network. The files can  
then be accessed from other DLNA CERTIFIED® clients.  
M-DMP – Mobile Digital Media Player  
Media Types: image, music and video  
Summary: You can play content stored on another  
device, for example, a server or a PC, directly on your  
device.  
M-DMC – Mobile Digital Media Controller  
Media Types: image, music and video  
Summary: Digital Media Controllers find content offered  
by a DMS or M-DMS and match it to the rendering capa-  
bilities of a DMR — setting up the connections between  
the DMS and DMR.  
+PU+  
Media Types: image, music and video  
Summary: You can play media in your device on another  
device, such as a TV or a PC using 2 box push technol-  
ogy. +PU+ is integrated in the Album, Movies and Music  
applications.  
+DN+  
Media Types: image, music and video  
Summary: You can download content stored on another  
device, for example, a server or a PC, and play the down-  
loaded content directly on your device.  
+UDO+  
Media Types: image, music and video  
Summary: A media server uploading function that allows  
media files to be uploaded to Xperia devices from other  
DLNA certified clients.  
Supported Bearers  
DRM Support  
Wi-Fi®  
Wi-Fi Direct®  
The DLNA Certified® implementation does not support  
DRM-protected content.  
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Messaging  
MMS (Multimedia Messaging Service)  
According to OMA Multimedia Messaging Service v1.0 + SMIL  
Email  
Bearer type (IP)  
Character sets  
GPRS, EGPRS, UMTS, Wi-Fi®  
BIG5 Traditional Chinese  
GB2312 Simplified Chinese  
GB18030  
ISO-2022-JP Japanese  
ISO-8859-1  
ISO-8859-2 Eastern Europe  
ISO-8859-5 Cyrillic  
ISO-8859-7 Greek  
ISO-8859-9 Turkish  
ISO 8859-11  
KOI8-R Cyrillic  
Shift_JIS Japanese  
USASCII  
UTF-16  
UTF-8  
Windows® 874  
Windows® 1251 Cyrillic  
Windows® 1252  
Windows® 1254 Turkish  
Windows® 1258 Vietnamese  
Protocols  
POP3 and IMAP4  
Push email  
Secure email  
Microsoft® Exchange ActiveSync® (EAS)  
SSL/TLS, both port methods (POPS/IMAPS) and START-  
TLS  
HTML mail  
Yes (read only)  
More information:  
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Positioning – location based services  
Supported standards:  
• OMA Secure User Plane Location (SUPL) v1.0  
• 3GPP™ Control Plane location (including Emergency location), only supports E911  
• Qualcomm® GPSOneXtra  
Provisioning (OMA CP)  
OMA CP version 1.1  
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Multimedia (audio, image and video)  
Audio Playback  
Decoder format  
Supported in file format  
Audio decoding MPEG-1/2/2.5,  
audio layer 3  
MP3 (.mp3), 3GPP (.3gp),  
MP4 (.mp4, .m4a)  
AAC, AAC+, eAAC+  
AMR-NB, AMR-WB  
General MIDI (GM)  
Linear PCM 16bit  
OTA  
3GPP (.3gp), MP4 (.mp4)  
3GPP (.3gp), MP4 (.mp4)  
SMF (.mid)  
WAV (.wav)  
OTA (.ota)  
Ogg vorbis  
Ogg vorbis (.ogg)  
Supported in file format  
Audio Recording  
Encoder format  
AMR-NB, AMR-WB  
3GPP (.3gp), MP4 (.mp4),  
AMR (.amr)  
AMR-NB, AMR-WB, AAC-LC ste-  
reo  
3GPP (.3gp), MP4 (.mp4)  
Sample rate: 48 kHz  
Bit rate: up to 384 kbps  
Image Playback  
Decoder format  
Supported in file format  
1, 4, 8, 16, 24 and 32 bpp and RLE BMP (.bmp)  
encoded formats  
Single and multi-frame, bitmap  
mask support (GIF87a format and  
GIF89a format)  
GIF (.gif)  
Joint Photographic Experts Group  
JPEG (.jpg)  
Portable Network Graphics Bitmap PNG (.png)  
mask support  
Wireless Bitmap  
Encoder format  
Joint Photographic Experts Group  
Decoder format  
MPEG-4 Visual Simple Profile  
H.264  
WBMP (.wbmp)  
Image Capture  
Video Playback  
Supported in file format  
JPEG (.jpg)  
Supported in file format  
3GPP (.3gp), MP4 (.mp4)  
3GPP (.3gp), MP4 (.mp4)  
3GPP (.3gp)  
H.263 Profile 0  
H.265  
3GPP (.3gp), MP4 (.mp4)  
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Video Recording  
Encoder format  
Supported in file format  
- Video H.263 Profile 0, H.264  
Baseline Profile, H.264 High Profile  
- Audio: AAC-LC stereo  
Bit rate: 10 Mbps  
3GPP (.3gp), MP4 (.mp4)  
AMR-NB  
Audio/Video Streaming  
Streaming transport  
RTSP according to 3GPP™  
HTTP streaming  
Synchronisation (OMA DS, EAS, Google Sync™)  
OMA Data Synchronisation protocol versions 1.1.2 and 1.2  
OMA Data Formats: vCard 2.1, vCalendar 1.0  
Microsoft® Exchange ActiveSync® protocol version 2.5  
Microsoft® Exchange ActiveSync® protocol version 12.0  
Microsoft® Exchange ActiveSync® protocol version 14.0  
Microsoft® Exchange ActiveSync® protocol version 14.1  
Google Sync™  
Related information:  
Web browser  
Google Chrome™ for Android™ is pre-installed in markets/regions where no restrictions apply.  
Related information:  
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Memory in Android™ devices  
To use Android devices efficiently, users should be aware of the different types of device memory. This  
knowledge is important in order to understand, for example, where data such as music, photos and  
videos is saved; how many apps can be downloaded from Google Play™; and how photos can be copied  
to a PC.  
Information regarding memory presented in this section may be useful to developers when optimising  
applications for mobile devices.  
Generally, all Android devices share the same basic memory setup. What differs is how much memory is  
available to you via the different types of memory, and whether your device uses an external SD card or an  
internal memory chip. Any information specific to the particular device model described in this White  
Paper is noted as such.  
Types of memory  
The types of memory described and numbered below are consistent with the terminology used in Sony  
mobile device menus and in other content relating to 2015 Xperia™ devices:  
1. Dynamic Memory (also known as RAM) is used by applications that run when the device is turned on.  
The amount of Dynamic Memory influences how many applications and operating system services can  
run at the same time. The Android operating system automatically closes applications and services  
that are not being used.  
However, such automatic functionality has limits. For example, if a lower amount of free RAM is  
available to applications after a new release of the operating system (due to increased capabilities in  
the system), device speed will eventually be impacted. This is the main reason that a device cannot be  
indefinitely upgraded to newer releases of Android™.  
If you experience problems with RAM, for example, if the device runs slower than usual or if the Home  
application restarts frequently when you leave an application, you should minimise the use of apps that  
run all the time. Social networking apps that connect and update their data online and animated  
backgrounds are examples of apps that are always running and affect RAM performance. To minimise  
RAM issues, you could also consider using a static wallpaper instead of a live wallpaper.  
To see which apps and services are currently active, go to Settings > Apps > Running. You should  
have at least 50 MB, and ideally 100 MB or more, of free RAM to avoid slowdowns and application  
restarts.  
You should also be aware that if you update the device to a later Android release, the load on the built-  
in Dynamic Memory will increase due to the addition of more features. As a result, the device may run  
slower after an update.  
The Xperia™ M4 Aqua Dual has 2 GB of RAM available to the Android OS and any installed  
applications. 200 MB of the total RAM is in use during normal operation when the user starts using the  
device out of the box.  
2. System Memory (also known as “System partition” or “/system”) is used for the Android OS and for  
most applications that are pre-loaded from the factory. This type of memory is normally locked, and  
can only be changed through a firmware upgrade. There is usually some free space available in this  
section of memory. However, since it is locked, you cannot save apps, photos or any other content to  
this memory. System Memory is reserved for future firmware upgrades, which almost always need  
more memory than the original firmware. You cannot see or influence the use of this memory.  
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3. Internal Storage is referred to as "working" memory. It can be compared to the C: drive on a PC or  
to the startup disk on a Mac.  
This type of memory is used to store all application downloaded from the Google Play™ Store (and  
other sources) as well as their settings and data (such as emails, messages and calendar events, for  
example). All applications have an allocated area for application data. Memory dedicated to an  
application is inaccessible to other applications.  
Some game applications also store content such as game music and game level information outside  
their own designated area. In most cases, an application can choose to save its data in a location of its  
own choosing (outside the protected application settings area). Generally, such content is not deleted  
when an application is uninstalled; it must be removed manually by connecting the device to a  
computer with a USB cable, or by using a file manager application.  
Internal storage is also used for all added user content. For example, photos taken using the device's  
camera, media files downloaded from the Internet and file transfers are stored in this area. Typical user  
content includes:  
• photos  
• movies  
• music  
• Email attachments  
Internal Storage will tend to fill up as a result of normal usage. Devices with a large initial Internal  
Storage can handle more applications and store more user content.  
If the Internal Storage starts to get full, the device slows down, and in some cases it might no longer be  
possible to install more apps. You should always ensure that you have at least 100 MB of free Internal  
Storage. If not, you should consider removing some apps that you seldom use, or move content that  
you do not frequently access to external storage.  
You can see approximately how much Internal Storage is free in Settings > Storage > DEVICE  
MEMORY. You can also view more details about how much memory is used by applications under  
Settings > Apps. Depending on the particular variant of the device, the Xperia™ M4 Aqua Dual has  
either 3 GB or 11 GB of Internal Storage available out of the box.  
Please note that in Sony Mobile 2015 products, “Internal Storage” is now the combination of what was  
previously known as “Device Memory” or “Phone Memory” (for applications and their data – also  
previously known as “/data”) and “Internal Storage” (for user’s content – also previously known as “/  
sdcard”). The changes in Internal Storage were made so that memory usage could be more flexible  
and to allow encryption of user content.  
Memory card slot  
Some products include both a large internal memory and a built-in memory card reader. Android manages  
devices with a built-in memory card reader and internal memory differently from a device that includes  
only a built-in memory card reader.  
Since most applications expect only a single location for storage, such applications will not generally  
allow you to SAVE anything to the memory card (i.e., they do not offer the option to choose a storage  
location). However, some applications (for instance, the Sony Mobile “Camera” application) may actually  
allow you to do so. Other applications, for example, backup applications such as the Sony Mobile  
“Memory” application, will by definition be configured to copy content from the Internal Storage to the  
external SD card.  
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On the other hand, when it comes to reading from an external SD Card, you will be able to access content  
(for example, videos, photos and music) on a memory card inserted in this slot without any special  
consideration since the Android system searches all available memory for content. Therefore, such  
products may be regarded as supporting a fourth type of memory, called “External Card” or “SD Card”.  
4. SD Card (known as “/ext_card” from a programmer’s point of view, or by other names in other Android  
products) is the name for the removable SD memory card in all 2015 Sony Mobile products. As  
described in the previous section, this External Card memory is generally more limited in that any  
application can read from it, but many applications cannot save to this card. Only a few applications,  
including backup applications and file manger applications, have the capability to save to this 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 device. If something should happen with the hardware, or if the device is lost or stolen, the data  
stored on the device’s internal memory is gone forever.  
In a device 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 copied to an external SD card by a special backup  
application, transferred to remote storage over a network (mobile or Wi-Fi), or to a computer via a USB  
cable.  
To facilitate the transfer of data via a cable, the Xperia™ M4 Aqua Dual supports Media Transfer Protocol  
(MTP), which makes it possible to easily transfer content back and forth between your device and a  
Windows® PC. For Apple™ Mac® computers, a special application called Sony™ Bridge for Mac is  
available with built-in support for MTP. This application can be downloaded from the Xperia™ M4 Aqua  
Dual support page.  
Note that you do not need to back up or make a copy of applications that you have downloaded from the  
Google Play™ Store. They can normally be downloaded again after you have set up your Google account  
to work in a new device (or in a device where the memory has been completely erased).  
Note 1:  
Some Android devices, including Sony Mobile devices from 2012 and Sony Ericsson devices from 2011  
and earlier, do not use a single “Internal Storage” for both applications (and their data) and user content.  
Instead, these devices use either an external SD card for user content, or a corresponding area of internal  
memory to reproduce the functionality of an SD card. In such devices, there is a fixed limit between the  
application area (“/data”) and the user content area (“/sdcard”), with the result that user content can build  
up and reach this limit. When the user content reaches this limit, no additional data can be added using  
any application. For example, the camera application would no longer be able to capture additional  
photos even if a considerable amount of free space was available in the application area. This limit also  
applies to the application area. Downloading and installing new applications would not be possible even if  
there was enough free memory in the user content area.  
Note 2:  
Some devices with integrated storage have abandoned the distinction between the application area and  
the content area when it comes to a Factory Data Reset. As a result, there is no option in such devices to  
perform a Factory Data Reset and preserve content. In such devices, all content is completely deleted  
from the device when a reset is performed.  
In contrast, Sony Mobile’s memory integration solution makes it possible to preserve user content in this  
situation. Therefore, when performing a Factory Data Reset, the default action will still be to only remove  
applications and their data, and an option box must be checked if all content is to be removed as well (as  
might be desirable when selling the device second-hand).  
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Note 3:  
For a developer, it is important to note that from a programming point of view the location names used to  
refer to the different memory areas described in Note 1 are still valid, i.e., the area used for applications (“/  
data”) is still present, as is the area used for content (“/sdcard”).  
In reality, “sdcard” is a “symbolic link” to “/data/media”. However, from inside an Android application, “/  
sdcard” can still be used. For example, you can use “sdcard/DCIM/100Android” to find all camera  
images. The continued use of “/sdcard” to access the content area ensures compatibility across different  
products and Android releases in this regard.  
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Trademarks and acknowledgements  
All product and company names mentioned herein are the trademarks or registered trademarks of their  
respective owners. Any rights not expressly granted herein are reserved. All other trademarks are property  
of their respective owners.  
Visit www.sonymobile.com for more information.  
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