Xperia Z1 14.2.A.1.142 firmware rolled on Deutsche Telekom carrier

Recently 14.2.A.1.142 firmware was certified for Xperia Z1 C6903, Xperia Z Ultra and Xperia Z1 Compact on PTCRB from which 14.2.A.1.142 firmware rolled first on Xperia Z1 Compact ( carrier devices ) and then 14.2.A.1.146 firmware was spotted on Chinese Xperia Z1 Compact M51w which is yet not available for sale. Now 14.2.A.1.142 firmware is seen rolling on some carrier specific Xperia Z1 also. 14.2.A.1.144 firmware has already been certified for Xperia Z1, Xperia Z1 Compact and Xperia Z Ultra.

14.2.A.1.142 firmware ( Android 4.3 ) is confirmed on Xperia Z1 Deutsche Telekom carrier handset in Germany which is a minor bug fixing update only and was spotted for Xperia Z1 C6903. Some users are still experiencing touch screen unresponsive and sound enhancement force close issue still on this update.

We don’t expect this Xperia Z1 14.2.A.1.142 firmware to roll out globally on regular variants.

Xperia Z1 14.2.A.1.142 firmware About Phone

Download Xperia Z1 14.2.A.1.142 firmware ftf for manual flashing

As 14.2.A.1.142 firmware is a carrier specific update so it is full of bloatwares from the carrier. Avoid flashing on regular Xperia Z1 variants.

# For C6903 Germany

Download DE_1276-5028_R6B.ftf
[ via XDA user laguCool ]

Xperia Z1 14.2.A.1.142 firmware Software Info

If you get this 14.2.A.1.142 firmware anywhere else except the above mentioned carrier then do let us know. Drop your comments below.

Carrier based Xperia Z1 14.1.G.2.259 firmware update rolling out

At present Xperia Z1 suffering from many firmware glitches, though 14.1.G.2.257 firmware update sorted out many as per Sony but users are still facing those issues some of the main are display calibration issues ( yellow hue issues ), noisy pics from camera app etc.

At the same time 14.1.G.2.259 firmware was certified on PTCRB for Xperia Z1 C6903 on October 23 almost a month ago which was as per our sources meant for only carrier based devices and here it comes.

14.1.G.2.259 firmware update has been released now for Xperia Z1 in Australia on “Telstra Australia” carrier dated 14/11/13. It is expected to be bring some minor changes only.

Xperia Z1 14.1.G.2.259 firmware seen as OTA update sized 95.2 MB on a user’s handset, do check it may also be available via PC Companion or SUS. Look for a notification as shown below. Users who have got this update are saying it brought better battery life with it now.

Carrier based Xperia Z1 14.1.G.2.259 firmware update rolling out

It still keeps Xperia Z1 on android 4.2.2 jelly bean, hoped as last android 4.2.2 update on Xperia Z1 before we see android 4.3 officially rolling in December as Sony said.

If you have a carrier based Xperia Z1, then look for 14.1.G.2.259 firmware update, let us know what it has brought under the hood for the users, any major change noticed, drop your comments on that.

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 🙂