Here in this guide checkout How to update Xperia Z1 C6902, C6906, C6903 to Android 4.4.4 Kitkat 14.4.A.0.108 official firmware – Guide
Sony Xperia Z1 C6902, C6906, C6903 has started receiving Android 4.4.4 Kitkat update and the update is rolled out via OTA with 14.4.A.0.108 as the build number. If you are facing any problem updating your device to this firmware via OTA, then manually update Xperia Z1 C6902, C6906, C6903 to Android 4.4.4 Kitkat 14.4.A.0.108 firmware.
Before we proceed to update Xperia Z1 C6902, C6906, C6903 to Android 4.4.4 Kitkat firmware, we must follow some set of instruction to prepare Xperia Z1 C6902, C6906 for the update process and also to avoid it from bricking.
- Check your device model number before updating.
- Take backup of your Xperia Z1
- Charge your device to at-least 75%.
- Make sure USB Debugging is enabled on your device. Check in Settings > Developer Options > USB Debugging.
- Download and install USB drivers suitable for your device from here.
- Backup TA partition and setup Flashtool drivers.
Assuming that you are done with all the above listed requisites, let’s now proceed to update Xperia Z1 C6902, C6906, C6903 to Android 4.4.4 Kitkat 14.4.A.0.108 firmware.
Disclaimer: We should not be held liable or responsible in any manner for any damage occurred to your Xperia Z1 C6902, C6906, C6903 Android device. So understand the risk involved and proceed further at your own risk.
Procedure to Update Xperia Z1 C6902, C6906, C6903 to Android 4.4.4 Kitkat 14.4.A.0.108 firmware:
Step #1: Make sure you have installed and setup Flashtool on your PC. If not. Follow here.
Step #2: Download the appropriate firmware file for your device from the below links:
Xperia Z1 C6902 [Generic/Unbranded]
Xperia Z1 C6906 [Generic/Unbranded]
Xperia Z1 C6903 [Generic]
Step #3: Copy the downloaded firmware file and paste in Flashtool > Firmwares folder.
Step #4: Run Flashtool.exe as administrator.
Step #5: Now hit the small lightening button at the top left corner and select Flashmode.
Step #6: Select the FTF firmware file, which you have copied earlier to the Firmwares folder.
Step #7: Now from the right side, select options to wipe Data, Cache and apps log. It is recommended to choose all the wipes.
Step #8: Now click on OK, this will start preparing the firmware files for flashing.
Step #9: Once the firmware files are loaded, a popup appears, asking you to connect your device to PC, by turning it off and keeping the back key pressed.
Step #10: Now power off Xperia Z1 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.
Step #11: As soon as the phone is detected in Flashmode, Flashtool will start flashing the firmware files to your device.
Step #12: Once the flashing is done, release the Volume Down key and unplug your device and reboot your device
That’s all now you have successfully updated Xperia Z1 C6902, C6906, C6903 to Android 4.4.4 Kitkat 14.4.A.0.108 firmware. Do let us know in the comment section if you face any issues, while trying to update Xperia Z1 C6902, C6906, C6903 to Android 4.4.4 Kitkat firmware.