Xperia Z2 D6503 17.1.A.1.2 firmware ftf Leaked – 4.4.2 KitKat

Xperia Z2 Android 4.4.2 KitKat testing 17.1.A.0.289 firmware build’s system dump was leaked as soon the phone was launched by Sony officially and till date we have seen so many ports related to Xperia Z2 KitKat apps and features which will not be available on other Xperia smartphones for some time on official KitKat update.

Just now Xperia Z2 D6503 17.1.A.1.2 firmware ftf has been leaked which is the most recent build for Xperia Z2 till yesterday when we saw new 17.1.A.2.36 firmware getting certified on PTCRB. Leaked Xperia Z2 17.1.A.1.2 firmware is of ‘Commercial and Journalist’ Version not the retail 17.1.A.1.2 firmware ftf which will be available to regular Xperia Z2 users after the phone is officially launched in market.

Download Xperia Z2 17.1.A.1.2 firmware ftf

Download the below mentioned 17.1.A.1.2 firmware ftf, it has no CDA.

Download [email protected]
[ Key – BQsj0rAPlWvlwzuMZi1tWTMG1lt1-mrwQCVltLiZVGk ]

Xperia Z2 17.1.A.1.2 firmware

In order to flash above 17.1.A.1.2 firmware ftf on your Xperia Z2 you need to download the latest version of FlashTool  v0.9.14.0

Download flashtool- 
[ via – Androxyde | ]

Below you can see the software info of Xperia Z2 on 17.1.A.1.2 firmware.

Software Version – 1278-4770_17.1.A.1.2 | Cust – 1279-0989_R3A

Xperia Z2 17.1.A.1.2 firmware - Software Info

If you are interested in developing apps from Xperia Z2 17.1.A.1.2 firmware then apps and framework have been shared below. Download it and start developing.

Download Z2_17.1.A.1.2_freamwok&apps_deodex.rar
[ Key – 8xOZroOgQ2Vv6jhBJSuYqK4PZRjAOE4e26HLmcuUhRM ]

If you have retail Xperia Z2 already you can try flashing the firmware ftf if you want to. Let us know if you do so. Drop your comments below.

[ Source – [email protected]XDA | XDA ] Thanks Rimas 🙂

How to flash Xperia Z1 14.1.G.2.257 ftf using Flash Tool Manually ?

Sony has officially rolled out Xperia Z1 14.1.G.2.257 firmware update two days ago and it is a major update over previous 14.1.G.1.534 firmware. 14.1.G.2.257 firmware brings noticeable changes to camera, white balance calibration of displays screen, Wi-Fi range, power management and improves performance overall.

Though Sony has listed 14.1.G.2.257 firmware on its different region website but many users still have not got it yet, may be because 14.1.G.2.257 firmware is still seeding and may roll out in different regions not at the same time.

Xperia Z1 C6902 users in India are asking us about the update, so at present there is one commercial and journalist band Xperia Z1 C6902  14.1.G.2.257 firmware ftf is available for manual flashing so is the case with Xperia Z1 C6903 ftf ( specific region’s ftf also available ).

We have created below a tutorial for newbie’s to let them teach how to flash Xperia Z1 14.1.G.2.257 ftf using Flash Tool Manually ?

[ UPDATE 18 Oct ] 14.1.G.2.257 firmware CONFIRMED in India on C6902.

Changelog of  Update

Xperia Z1 14.1.G.2.257 firmware major update rolled out – Improves Camera, Display and Power Consumption.

How to flash Xperia Z1 14.1.G.2.257 ftf using Flash Tool Manually ?

Flashing doesn’t need Root and it doesn’t voids your warranty.

Make a backup of data via PC Companion before proceeding.

Step 1 – Download FlashTool

Download FlashTool version in which Xperia Z1 and Z Ultra has been added.

Download flashtool-

After downloading above FlashTool, install it.

Step 2 – Download Firmware Ftf file

Download the Xperia Z1 14.1.G.2.257 ftf from below links.

Download Xperia Z1 C6903 14.1.G.2.257 firmware ftf

Brand Commercial & Journalist

Download C6903_14.1.G.2.257_GLOBAL-LTE (1277-1398).ftf

Download Xperia Z1 C6902 14.1.G.2.257 firmware ftf 

Below file extracted from :- [ For INDIA Xperia Z1 C6902 users specifically ]

  • Phone Software Version – 1272-6084_14.1.G.2.257
  • File System Version – GLOBAL_HSPA_14.1.G.2.257
  • Country – India

Download C6902_14.1.G.2.257_Generic_IN.ftf
[ via XDA user chenthil ]

Brand Commercial & Journalist

Download C6902_14.1.G.2.257_Global.ftf


Download C6902_14.1.G.2.257_Global.ftf

Step 3 

After downloading ftf file, Go to location where FlashTool is installed and create a folder named “Source Files” and put the above Xperia Z1 14.1.G.2.257 ftf  file in it.

Additional Step :- Install Drivers

Install Drivers from the folder named “FlashTool Drivers” in the location where FlashTool is installed.

Step 4 – Open FlashTool

Now Open FlashTool. See the “Black Lightning icon” at the top left corner. Click on it.

Flash Xperia Z1 14.1.G.2.257 ftf using Flash Tool Manually

Step 5 – Choose Flashmode from Bootmode chooser

Now choose flashmode from given two options.

Choose Flashmode from Bootmode chooser

Step 6

Now browse to “Source Files” location and select it. You will see the  Xperia Z1 14.1.G.2.257 ftf file listed below in left hand side of window under the “firmware section tag”.

Put files in FlashTool

Put files in FlashTool

Step 7 – Wipe data if you wish

See the right hand side of window under the “Wipe” tag, all three options are checked if, will delete all user data. So if you don’t want to delete all user user data and don’t want a factory reset then you should uncheck them.

Click on “Flash” button.

 Wipe data if you wish

Step 8 – Preparing files for flashing

After clicking on “Flash” Button in above step, now FlashTool will prepare file “C6902 / 14.1.G.2.257 / Global for flashing.”

Preparing files for flashing

Step 9 – Connecting phone in FlashMode.

Now enable USB Debugging on your phone and enable unknown sources option in your Xperia Z1 and switch it off. When prompted the notification of connecting your phone, connect it in flashmode.

Connecting phone in FlashMode.

Press Volume down button and then insert usb in phone, you will see red and green light blink once, it means phone is connected in flashmode now.

As soon as phone is detected by FlashTool, flashing beings and wait till it is finished.

Connecting phone in FlashMode.

How to flash Xperia Z1 14.1.G.2.257 ftf using Flash Tool Manually ?

Step – 10 Disconnect phone

Disconnect phone as soon as flashing is finished. Now reboot your phone. You must have Xperia Z1 14.1.G.2.257 firmware on your phone 🙂


Now go to about phone settings and check whether you have 14.1.G.2.257 firmware read, if yes you have successfully updated your Xperia Z1 C6902 / C6903 to 14.1.G.2.257 firmware, Cheers 🙂

Xperia Z1 C6902 14.1.G.2.257 firmware

Perform each step carefully and it’s very easy to flash firmware ftf files on your phone.

Xperia Z1 14.1.G.2.257 firmware Changelog – As what Sony says…

Sony has officially acknowledged the 14.1.G.2.257 firmware update info on their blog and listed the changelog very carefully as Xperia Z1 users are facing many issues on present unstable firmware.

Below changelog is based on what Sony has updated. We will soon update our changelog as soon as we get hands on this firmware.

  1. Camera Algorithm Tweaked – Batter Camera Pics now as per Sony’s statement.
  2. Xperia Camera app runs more smoothly. New camera app actually, new settings seen.
  3. Display is calibrated, need to see whether yellow hue tint issue on Xperia Z1 is resolved or not.
  4. Batter power consumption now.
  5. Exchange sync more better now.

Our Changelog on 14.1.G.2.257 firmware

  • Automatic power-off issue Still there. Got 3 times.
  • Wi-Fi range improved.
  • Touch sensitivity is better from previous firmware.
  • Optimized backlight option is gone now, and is permanently ON now.
  • Display not improved seems same to us. It many have been improved but not for as. It’s still same as it was before.
  • Battery draining at same rate, no improvement.

BUGS in Xperia Z1 14.1.G.2.257 firmware

  • NFC icon now shown while it is activated.

If you face any difficulty in updating your Xperia Z1 to 14.1.G.2.257 firmware, drop your comments we will help you out. If you have got notification for 14.1.G.2.257 firmware in India on PC Companion, let us know in comments below 🙂

How to Update manually Xperia phone by flashing ftf file via Xperia Flash Tool

The best way to update your Sony Xperia phones is always via PC Companion or via Sony Update Service. Well in case your phone shows no notification of the official updates after connecting to PC Companion or Sony Update Service (SUS) then you always flash the original firmware’s ftf file on your phone via Xperia Flash Tool. Read our full tutorial below.

How to Flash ftf file manually on Xperia Phones ?

  • Download the “ftf file” of your Xperia device which is must needed in any case. 

Use Google search to get the desired ftf file for your Xperia device. You can get some of the ftf files on our blog also. Check below links.

Manually Install Xperia S LT26i /SL/Acro S Jelly Bean 6.2.B.0.211 firmware ftf file – Official Update

[ OFFICIAL UPDATE ] Xperia Z C6603 Android 4.1.2 Jelly Bean 10.1.1.A.1.253 firmware ftf files.

[ OFFICIAL UPDATE ] Xperia P LT22i Jelly Bean 6.2.A.0.400 firmware ftf files.

[ OFFICIAL UPDATE ] Xperia TX LT29i Jelly Bean 9.1.B.0.411 firmware ftf files.

[ LEAKED UPDATE ] Xperia Ion LT28i Jelly Bean 6.2.B.0.203 firmware ftf files.

[ LEAKED UPDATE ] Xperia S / SL Jelly Bean 6.2.B.0.197 firmware ftf files.

[ PORTED UPDATE ] Xperia U ST25i Jelly Bean 6.2.A.0.400 on 3.0.8 old kernel  firmware ftf files.

  • After getting the ftf files for your phone, now download the Xperia Flash Tool from given below link.

Download flashtool-

Windows Version Beta 6

Supported Xperia Devices for updating via Flash tool:-

Xperia go (ST27i), Xperia neo V (MT11i),  Xperia ray (ST18i), Xperia P (LT22i), Xperia ZL (C6503), Xperia Z (C6603), Xperia PLAY (R800i), Xperia E dual (C1605), Xperia E (C1505), Xperia T (LT30p), Xperia S (LT26i), Xperia arc (LT15i) , Xperia arc S (LT18i).

There may be some more phones supported, do check in the supported phone list in the Flash Tool, if your device is not there, add it manually 😛

  • Download the Flash tool on your PC and install it. Let’s say you have installed it on folder named “C:\Flashtool”. Open the folder and find the folder named “drivers”, look for program “Flashtool-drivers” as you can find below.

install Xperia Flashtool in PC

  • Now run the program “Flashtool-drivers” as Admin. As soon as it opens, check under option “”Select components to install” and find the phone for which you want to flash the ftf file. Suppose you want to flash files for Xperia P, then we will tick mark the option “Xperia P, U and Sola Drivers”, “Flashmode drivers” and “Fastboot drivers” to install the concerned drivers of the phone. Click the “install” button and wait till drivers are installed on your PC. Check image screenshot below.

Installing FlashTool xperia P drivers

  • Now as soon drivers installation is finished. On your PC, navigate back to “C:\Flashtool” and in the folder named “firmwares”, please paste the downloaded ftf file for your concerned phone firmware.
  • Open “FlashTool.exe” file from folder “C:\Flashtool”. As soon as you open it, check written “Device disconnected at the end” in dialog box. Check image.

Installing FlashTool

  • Switch off your phone,wait for 30 seconds, now connect your USB cable of phone to PC and the other end on your phone’s USB port. While inserting USB cable in your phone’s port, hold “Volume Down” button and then insert cable. You will see green light in notification LED which means your phone has been connected successfully in flashmode. See below, you will find “Device connected in flashmode” written in the Flash tool window.

FlashTool installing

  • “Notice the Black Lightning icon in the top left corner”, Click on it, as soon as you click, it will as k you to choose from two options listed. Choose option “flashmode”. See below.

updating xperia firmware ftf via flashtool

Follow next Step carefully, any damage caused to your phone will be your responsibility. We are not at all responsible for that.

  • Now from “Select source folder” option please navigate to “C:\Flashtool\firmwares” and choose the firmware ftf file which you pasted in this folder. After doing this from option “Select a firmware” choose your listed firmware ftf file and check mark the option “Wipe Data”. Do check mark other options if you want, you must know what they do, don’t do anything stupid here please. Under option “Misc” , check mark the option “No Final verification” if you are on Android 4.0.4 ICS Stock version. Click Ok, then. See below image.

installing ftf via xperia flash tool

  • As soon as you click OK, Flashtool will now prepare files for flashing which you can see on the Flash Tool open window panel, check below.

How to Flash via Xperia Flash Tool

  • As soon as files are prepared, the selected firmware ftf will be installed on your Xperia device.

Done now hopefully if you performed every step carefully. The first reboot in the phone after installing ftf file is very slow, it will be OK after that. If you have got any confusion on How to Update manually Xperia phone by flashing ftf file via Xperia Flash Tool, do let us know in the comment section below, we will help you out 🙂