Update Xperia M2 D2303, D2306 Android 4.4.2 Kitkat 18.3.C.0.37 firmware

Sony Xperia M2 D2303, D2306 has received the Android 4.4.2 Kitkat update and the update is rolled out via OTA with 18.3.C.0.37 as the build number. If you are looking to update Xperia M2 D2303, D2306 to this firmware, then you can follow the procedure below.

update Xperia M2 D2303, D2306 to Android 4.4.2 Kitkat 18.3.C.0.37

How to update Xperia M2 D2303, D2306 to Android 4.4.2 Kitkat 18.3.C.0.37 firmware:

1. Download and install Flashtool on your PC.

2. Download the appropriate firmware file for your device from the below links:

3. Now you need to copy the downloaded firmware file and paste in Flashtool > Firmwares folder.

4. Run Flashtool.exe as administrator on your PC.

5. From the top left corner, locate the small lightening button and select Flashmode.

6. Select the FTF firmware file, which you have copied earlier to the Firmwares folder.

7. Next choose wipe Data, Cache and apps log.

8. Tap OK to prepare the firmware files for flashing.

9. Once the firmware files are loaded, it will ask to connect the device with PC.

10. Now power off Xperia M2 and connect it to PC by pressing and holding the Volume Down key. Now make sure not to release Volume Down key, until the whole flashing process is completed.

11. Once the device is detected, the flashtool will start the flashing process.

12. Once flashing process is completed, just disconnect the device from PC and start using the latest firmware.

  • antonioab

    Hola. quiero descargar el firmware y se corta la descarga y dice que ha sido un error de red. y ya voy 4 veces que lo intento…con el flash tools pasa algo similar. no puedo por que dice que talvez pone en riesg o mi pc.

    Agradecere mucho si me pueden ayudar

    • Can you please comment in English…

  • grosur

    If i have my phone simlocked on a network can i make this update? Thank you!

    • I think it is good to go. But if some thing goes wrong don’t blame us. Take step wisely.

      • grosur

        Wish me luck and thanks for the reply! 🙂

  • Ricardo A. Apolinario, Jr.

    Thanks.. It makes my M2 D2303 smoother and seems more responsive than in 4.3 ,some important features been added like in recent apps.. There is a close all button now… and allot of UI improvements.. 🙂 Very happy for this update

  • tut-ench

    Well, flashing the phone was succesfull. But now I have no chance to unlock the bootloader after *#*#7378423#*#* it says Bootloader Unlock: No on the other hand he don´t accept the USB drivers on the Build 18.3.C.0.37, installed over Android SDK Manager and Sony PC Companion. I become two unknown devices and a connection via MTP so i can´t try it a second time 🙁 ?? any ideas.

  • Bernard

    Thanks for this very useful guide, however I have certain questions regarding updating the phone (M2 D2303).

    It says on backing up TA Partiton that my phone should be rooted befor I can backup my TA partition. Is there any way to backup my TA Partition for non-rooted device?

    Also my phone is currently locked to a certain network carrier (Smart Telecoms) in philipines, Is this applicable for phone that is locked to a certain network?