Sony recently rolled out a new update for its flagship, the Xperia Z2. This update is based on the build number 17.1.2.A.0.314 while the core is still Android 4.4.2 KitKat. The new update packs up voice quality enhancements, improved battery performance, the touch and performance has been improved while the overall stability and performance is improved. The new update is now available for all the variants of the Xperia Z2 and is reaching the users through OTA or through Sony PC companion.
Since the OTA updates take some time reaching all the regions, some of the users might not be able to wait for the latest and improved version of Android for their device. In this case, the only solution to get the latest update is through Sony Flashtool, and that is what we are here for. We are going to install this latest official firmware, based on the build number 17.1.2.A.0.314 on our beloved Sony Xperia Z2 D6503, D6502 and D6543 in the succeeding guide. Let’s go through the early preparations and then install this firmware.
1. This is only for Sony Xperia Z2 D6503, D6502 And D6543!
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 Update Sony Xperia Z2 D6503, D6502 And D6543 To 17.1.2.A.0.314 Official Firmware:
- Before moving forward, please make sure that you’ve read the pre requisites and ensure that you are set to go ahead.
- Download the latest firmware Android 4.4.2 KitKat 17.1.2.A.0.314 FTF file.
- Copy the file and paste in Flashtool>Firmwares folder.
- Open Flashtool.exe now.
- Hit the small lightening button on the top left corner and select Flashmode.
- Select the FTF firmware file that you placed in the Firmware folder.
- 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.
- Click on OK, and it will start preparing the firmware for flashing. This may take a little while to load.
- 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.
- For Xperia Z2, 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.
- 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.
- As soon as you see “Flashing ended or Finished Flashing” leave the Volume Down key, plug the cable out and reboot.
- That’s All! Congrats! You’ve installed latest Android 4.4.2 kitkat on your Xperia Z2. 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!