Sony Xperia Z Ultra Firmware [C6802/6833/6806]

Sony Xperia Z Ultra Firmware
Read Time5 Minutes, 39 Seconds

In this post, we are sharing Stock Firmware for Sony Xperia Z Ultra C6802, C6833, C6806. Sony Xperia Z Ultra is one of the High-End devices of Sony and this phone is launched in June 2013. The phone comes with a 6.04-inch touchscreen display with a resolution of 1080 pixels by 1920 pixels at a PPI of 344 pixels per inch. Xperia Z Ultra is powered with Qualcomm MSM8274 or MSM8974 Snapdragon 800 coupled with 2 GB of ram and 2.2 GHz clock speed processor. The Sony Xperia Z Ultra runs Android 4.2 jellybean and is powered by a Non-removable Li-Ion 3050 mAh battery. We will update the article if we found any custom ROMs for this phone.

Also read : How to Unlock Bootloader of Google Pixel 2, Pixel 2 XL

See all the benefits for installing Firmware of your phone

Flashing firmware’s or custom ROM’s to Sony devices is as easy as updating your device to the latest version of Android. Also, it’s pretty easy to flash rom’s to Sony phones compared to other devices. All you need is your phone’s firmware file (.FTF file) and the popular FlashTool. From here you can download the latest firmware for your Sony Xperia Z Ultra.

Custom ROM

If you want to try another custom ROM’s in your device you can download the available ROMs or recoveries for your Sony Xperia Z Ultra and flash it using guides provided in this website. In order to install any roms other than stock, you have to root your phone and then need to flash custom recoveries like CWM (clockwork mode) or TWRP on your phone. Usually, we flash stock rom’s if something wrong with the software side. So, after the firmware flashes your Sony Xperia Z Ultra phone will be in a factory reset condition.

Back to topic

So welcome to the Central place where you can download the latest version of Xperia Z Ultra firmware for all variants across all regions. We are sharing the firmware which has fast and uncapped download speeds and I will try to add more stock firmware once they become available.

Note: If you find any new stock firmware that you want to be added to this list please comment below or contact me.

Download links provided below are from third-party websites and please note that techbiriyani.com is not hosted any ROM in our website if any of the below links is dead pls inform me.

Also ReadDisable Driver Signature Verification In Windows 8, 8.1 & 10 for Installing Drivers

From below, you can download the latest firmware for your phone. Please make sure that you are downloading the correct build for your phone. You can either seek help from us or from google.

Check your device model number from Settings > About phone, then download the specific firmware for your device.

Sony Xperia Z Ultra Firmware [C6802]

Android 5.1 Lollipop for Xperia Z Ultra [C6802]

Model – C6802 | Android Version – 5.1.1 | Region – India

Xperia Z Ultra_C6802_14.6.A.1.216_India_Generic

Sony Xperia Z Ultra Firmware [C6833]

Android 5.1 Lollipop for Xperia Z Ultra [C6833]

Model – C6833 | Android Version – 5.1.1 | Region – Hong Kong

Xperia Z Ultra_C6833_14.6.A.1.216_Hong Kong_Generic 5.1.1

Sony Xperia Z Ultra Firmware [C6806]

Android 5.1.1 Lollipop for Xperia Z Ultra [C6806]

Model – C6806 | Android Version – 5.1.1 | Region – US

Xperia Z Ultra_C6806_14.6.A.1.216_US_Generic 5.1.1


How to Install Firmware file

Requirements

  • Firmware file for your device (.FTF)
  • Flashtool
  • USB cable

Flashing Guide

Make sure to Enable “USB debugging” and “Unknown sources” on your Sony Xperia device, click here for help.

Part 1

  1. Download and install the Flashtool package from official website.
  2. Now go to your installed directory (usually – ‘C:\Flashtool\drivers’) and install Flashtool drivers
  3. Tick the “Flashmode Drivers” and “Fastboot Drivers” to install (see below image)
xperia flashtool guide

Note: To install the Flashtool drivers for Windows 8/8.1/10, please click here.

Part 2

  1. Here we finished installing Flashtool now Open It.
  2. Click on the lightning bolt in the top left of Flashtool as highlighted below.
flashtool guide
flashtool install

Select, ‘Flashmode’ and click OK

You should already be in the source folder where the FTF firmware files are located. If not, navigate to: “C:\Users\[Your PC Name]\.flashTool\firmwaresIf you still not able to find the path check this too, C:\Flashtool\firmwares\now you should get it.

Select the firmware build version that you want to flash from the “Firmware” pane. Ensure the device variant is the same as the model number of your Sony Xperia device.

A clean install is the way to go

So tick all options under the “Wipe” pane. This will wipe all of your data though including your photos and videos, so please ensure you have these backed up somewhere else.

install ftf using flashtool

Leave all others unchanged

Click on “Flash“. Flashtool will then indicate that it is “preparing files for flashing”.

install firmware with flashtool

Sometimes, you may have to wait around 60 seconds for the pop-up below to appear. Once it does, make sure that the device is powered off and then hold the ‘volume down’ button and connect the usb cable. Once the pop-up disappears and flashing has started, you can let go of the ‘volume down’ button.

flashtool rom flash

Flashtool will then start flashing your Xperia device.

install ftf file

Once you see “Flashing finished” as indicated below, your Sony Xperia has been successfully flashed.

flashtool tutorial

Hurray 🙂 you have just installed stock firmware! Now disconnect your Xperia device and power on the handset.

It will take some time for the first boot so, don’t worry if it takes a while, this is to be expected.

Firmware Benefits

You can use the firmware for variety of purposes, which includes:

  • Fix your Sony Xperia Z Ultra if it’s giving you force closes errors and restarts randomly.
  • Unbrick your Sony Xperia Z Ultra if it’s bootlooping and stuck at logo when restarting.
  • Go Back to Stock on your Sony Xperia Z Ultra — helps when looking to sell the device, or fix installing OTA updates if broken.
  • Restore Sony Xperia Z Ultra to factory state i.e original state when you bought.
  • Upgrade your Sony Xperia Z Ultra to newer Android version.
  • Downgrade your Sony Xperia Z Ultra to lower build no. at same Android version.
  • Unroot your Sony Xperia Z Ultra.
  • Remove custom recovery like TWRP and CWM, if installed, on your Sony Xperia Z Ultra.

To perform any of the above, simply install the firmware meant for your device, as per its model no. in Settings > About device.

Need help? Let us know if you need any help regarding this via comments below.

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