Update Sony Xperia Z1 C6902/C6903 To Official Android Lollipop 14.5.A.0.242 Firmware

Good day for Xperia Z1 owners. The long awaited and the best Android update for Xperia Z1 has finally landed today. Sony started rolling out Android 5.0.2 Lollipop for Xperia Z1, Z1 Compact & Z Ultra today. Apart from the Android 5.0.2 Lollipop base, this update sports changes in the UI. Sony has kept the changes minimal and complied with the Material Design UI. Other new features include Multi-user profile and guest mode. New notifications cards on the lock screen are there and users can move apps to SD card now. Android 5.0.2 Lollipop for Xperia Z1 carries the build number 14.5.A.0.242. The update is available for C6902 and C6903 variants of this device.

As expected, this update is rolling out slowly in different regions. If it hasn’t already reached your region, it may take a while for Sony to push it towards you. If you’re an Android power user and its getting hard for you to wait for this update to arrive through Sony PC companion or through OTA, you may want to use a method that can help you to taste the Lollipop straight away. We’ve found such a method and in the following post we will be explaining it to help you update your beloved Xperia Z2 C6902 and C6903 to Android 5.0.2 Lollipop 14.5.A.0.242 firmware using Sony Flashtool. Let’s go through some pre-installation instructions and get your device a Lollipop now.

Early Preparations:

1. This is only for Sony Xperia Z1 C6902, C6903.

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 Z1 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 Z1 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 14.5.A.0.242 FTF file.
   1. For Xperia Z1 C6902 [Generic/Unbranded. Link 1 | Link 2 | Link 3 Create your own FTF using this guide.
   2. For Xperia Z1 C6903[Generic/Unbranded] Link 1  |  Link 2 | 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 Z1 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 Z1. 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!

Next: Root Xperia Z1 C6902/C6903 14.5.A.0.242 5.0.2 Lollipop With Dual Recovery