Update Xperia Z3 Compact D5803/D5833 To Official Android Lollipop 23.1.A.1.28 Firmware

Xperia Z3 Compact is one of the lucky devices to receive Android 5.0.2 Lollipop very early in the Xperia Z family. Sony is making a number of improvements to make sure that Xperia Z3 Compact owners stay at ease. A number of Lollipop builds has already rolled out, but Sony missed one of the very important features, the Close All button in the recent apps menu. In the latest update, which just started rolling out today, Sony has added the Close All button back in the recent apps menu. Users can now close all applications at once rather then swiping off all applications one by one. The new update also includes some improvements for the on-screen notifications, messaging functionality while stamina mode is on and some other minor improvements are there. The new update is rolling out for different regions and is also downloadable through XperiFirm. It carries the build number 23.1.A.1.28, while the base is still Android 5.0.2 Lollipop.

If you haven’t already received this update, some of you may want to get it immediately but you will need a manual method. If you want to update, we have the method explained here for you. In the proceeding tutorial we are going to install Android 5.0.2 Lollipop 23.1.A.1.28 FTF on our beloved Xperia Z3 Compact D5803 & D5833 using Sony Flashtool.  We will go through some early preparations and then flash the firmware. 

Update Changelog:

– Ensured the lock screen / notification bar doesn’t indicate “no service” when the device has coverage

– Added a Sony feature; bringing back the “close-all-button” in the activity menu, so you can easily close all apps at once

– Unblocked devices with server policies (such as Exchange Active Sync for e-mail), to enable the new Lollipop lock-screen notifications

– Ensured the LED light is lit across all sound modes – and no longer offset by “silent”

– Made the necessary fixes to enable the easy movement of content from internal memory to external microSD card (something we saw affecting a few devices)

– Improved messaging functionality in Ultra stamina mode – some conversations could not be opened before in Ultra stamina mode

Early Preparations:

1. This is only for Sony Xperia Z3 Compact D5803 & D5833

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. If you haven’t rooted your device previously, skip this step.
• 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 Z3 Compact 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 Z3 Compact D5803 & D5833 To Official Android 5.0.2 14.5.A.0.242 Lollipop  Firmware

Before moving forward, please make sure that you’ve read the pre requisites and ensure that you are set to go ahead.

1. Download the latest firmware Android 5.0.2 Lollipop 23.1.A.1.28 FTF file.
   1. For Xperia Z3 Compact D5803 [Generic/Unbranded. Link 1 | Create your own FTF using this guide.
   2. For Xperia Z3 Compact D5833 [Generic/Unbranded] Link 1 | You can also create your own FTF using this guide.
2. Copy the file and paste in Flashtool>Firmwares folder.
3. Open Flashtool.exe now.
4. Hit the small lightening button on the top left corner and select Flashmode.
5. Select the FTF firmware file that you placed in the Firmware folder.
6. 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.
7. Click on OK, and it will start preparing the firmware for flashing. This may take a little while to load.
8. 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.
9. For Xperia Z3 Compact 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.
10. 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.
11. As soon as you see “Flashing ended or Finished Flashing” leave the Volume Down key, plug the cable out and reboot.
12. That’s All! Congrats! You’ve installed latest Android 5.0.2 Lollipop on your Xperia Z3 Compact 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!