Applications for phone: Install Android 4.4.2 KitKat 14.3.A.0.681 on Xperia Z1 C6903:

Posted by Unknown Sunday, March 23, 2014

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 14.3.A.0.681 FTF file:Link one link two link three
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 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.
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 4.3 Jelly Bean on your Xperia Z1 C6903. Enjoy! credit to techbeasts

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