Sony rolled out Android 5.0.2 Lollipop with firmware 23.1.A.0.740 for Xperia Z3 devices and of course it was made through OTA. The update came very quick from Sony after initial release of Lollipop for mentioned phone and the main reason was to fix the bugs in earlier Lollipop firmware like performance issue and battery drainage issues.
If you haven’t yet received the 23.1.A.0.740 Android 5.0.2 Lollipop firmware on your Xperia Z3 then you can use manual method to install this. At the moment we will help you manually update Xperia Z3 Compact D5803 to 23.1.A.0.740 Android 5.0.2 Stock Lollipop Firmware.
- First of all ensure that you have Sony Xperia Z3 Compact Drivers installed on your computer.
- Your Xperia Z3 Compact should be unlocked.
- Make sure the battery is at least 80% charged.
- You need to have Flashtool installed on your computer. If not, follow –> Install Sony Flashtool in Windows
Please read each and every step carefully to 23.1.A.0.740 Android 5.0.2 Lollipop firmware on your Sony Xperia Z3 Compact. AndroidsDNA.com cannot be held responsible if you damage your phone because it will be entirely your fault.
- Download 23.1.A.0.740 Android 5.0.2 Lollipop Firmware
Guide to Manually Update Xperia Z3 Compact D5803 to 23.1.A.0.740 to Android 5.0.2 Lollipop Firmware
Step 1: When you are finished with firmware downloading, place the 23.1.A.0.740 .ftf file in the Firmware sub-folder in Flashtool folder.
Step 2: Open the Flashtool.exe and click on the lightening icon at top left.
Step 3: Select Flashmode and then choose the .ftf file you have just placed there.
Step 4: Look at right side window and select wipe data, apps log, cache etc (I recommend wipe all).
Step 5: Click on ok so the Flashtool start preparing the 23.1.A.0.740 .ftf firmware for flashing which will take few seconds.
Step 6: Once it is done, you will be asked to connect your Xperia Z3 Compact D5803 to your computer. Also you will be shown the instructions on how to connect your phone like turning it off and then pressing Volume Down button followed by connecting it to computer using USB cable.
Step 7: Once your phone is detected, flashtool will start flashing Android 5.0.2 23.1.A.0.740 .ftf Stock firmware on your Xperia Z3 Compact D5803.
When flashing is completed, your phone will reboot. After that, it should be on latest Android 5.0.2 Lollipop 23.1.A.0.740 Firmware which you can verify from Settings –> About Phone.