Update Sony Xperia M2 Dual D2302 To Android 4.4.2 KitKat 18.3.B.0.31 Official Firmware

Sony has started updating its mid range device, the Xperia M2 Dual to Android 4.4.2 KitKat, the new update  is based on the build number 18.3.B.0.31. While there’s a number of rumors and news getting us closer to the launch of Sony’s next flagship, the Xperia Z3, Sony is trying its best and showing its users that despite being busy with the next flagship, it still is treating its existing users in a great way by providing them the latest software in time.

Just to have a recap, the Xperia M2 Dual landed in June, 2014. The device sports a 4.8 inches with 229 ppi. The device is powered up with Qualcomm Snapdragon 400 Quad Core CPU clocked at 1.2 GHz accompanied by Adreno 305 GPU and a RAM of 1 GB is there. Initially, the Xperia M2 Dual ran on Android 4.3 Jelly Bean and the device just started receiving the KitKat update just now. Xperia M2 Dual’s specifications are a great package in the price Sony is selling it at.

The new update, first of all is based on Google’s latest Android 4.4 KitKat and then are the enhancements. Sony has improved the camera application, battery and performance have been improved and there are bug fixes. Besides this, the new firmware aims at making the device even more stable. The software updates are on a slow roll out and will hit the different regions accordingly as usual.

Since its a little hard for the Android enthusiasts to calm down and wait for the updates patiently, the only way in this situation is to get the update manually instead of relying on the OTA update or through Sony PC companion. If you’re one of them, we’ve something here for you. In the succeeding post we are going to update Sony Xperia M2 Dual D2302 to Android 4.4.2 KitKat based on the build number 18.3.B.0.31 official firmware using the ftf file and flashing it through Sony Flashtool. Let’s go through the early preparations and then flash this firmware.

Early Preparations:

1. This is only for Sony Xperia M2 Dual D2302/S50h!

This ROM is only for the device mentioned above. Make sure that your model number matches the one listed above. To do so, go to Settings > About Device on your device and see your model number. Flashing this firmware on any other device will result in bricking it so make sure that you meet this requirement first of all.

2. Battery should be charged at least over 60%.

Make sure that your battery is charged enough to complete the flashing process. In case your battery is low and your device goes dead during the flashing process, you may end up soft bricking your device as it won’t complete the flashing process.

3. Backup everything!

Just to be on the safe side, you may consider backing up each and everything from your Android device. This is highly recommended so that in case anything goes wrong, you still have the access to all of your data and you can restore it immediately. You may backup everything as listed below.

• Backup SMS Messages
• Backup Call Logs
• Backup Contacts
• Backup Media – Copy your files manually to your PC or Laptop.
• Titanium Backup – If already rooted, use Titanium Backup to backup all of your apps, system data and other important content.
• Backup Nandroid – If CWM  or TWRP installed previously, otherwise skip this step and perform this at the end of flashing.

4. Enable USB Debugging Mode on your device.

Enable USB debugging mode on your device. To do so, tap settings>developer options>USB debugging. If you can’t find developer options in settings, then tap settings > about device and tap “Build Number” for 7 times and you’ll get em’ activated under settings.

5. Install and setup Sony Flashtool.

You must have installed Sony Flashtool. Find the full guide here.After installing Sony Flashtool, open the Flashtool folder from the drive where you installed it.Now open Flashtool>Drivers>Flashtool-drivers.exe and install the Flashtool, Fastboot & Xperia Z2 drivers from the list. [Important]

6. Use OEM data cable to establish connection.

Make sure that you use the phone’s original data cable to establish connection between your phone and the PC. Using a different data cable might result in interrupting the firmware installation.

How To Install Android 4.4.2 KitKat 18.3.B.0.31 Official Firmware On Sony Xperia M2 Dual D2302:

1. Before moving forward, please make sure that you’ve read the pre requisites and ensure that you are set to go ahead.
2. Download the latest firmware Android 4.4.2 KitKat 18.3.B.0.31 FTF file.
   1. For Xperia M2 Dual D2302/S50h [Customized IN | Generic/Unbranded]
3. Copy the file and paste in Flashtool>Firmwares folder.
4. Open Flashtool.exe now.
5. Hit the small lightening button on the top left corner and select Flashmode.
6. Select the FTF firmware file that you placed in the Firmware folder.
7. From the right side, select what do you want to wipe. Data, cache and apps log, all wipes are recommended, perhaps you may select if you don’t want.
8. Click on OK, and it will start preparing the firmware for flashing. This may take a little while to load.
9. As soon as the firmware is loaded, it will prompt you to attach the phone by turning it off and keeping the back key press.
10. For Xperia M2 Dual, Volume Down key will do the job of back key, just turn off your phone, keep the Volume Down key pressed and plug in the data cable.
11. As soon as the phone is detected in Flashmode, the firmware will start flashing, Do not leave the Volume Down key until the process is complete.
12. As soon as you see “Flashing ended or Finished Flashing” leave the Volume Down key, plug the cable out and reboot.
13. That’s All! Congrats! You’ve installed latest Android 4.4.2 kitkat on your Xperia M2 Dual. Enjoy

In case you got any queries or face any problems regarding this guide, please feel free to stop by the comment box below and let us know. We will get back to you as soon as possible. Thanks all!