Update Xperia Z5 (E6603/E6653) to Android 6.0 Marshmallow Official Firmware

Sony has rolled out Android 6.0 Marshmallow for its flagship devices including Xperia Z5, Z5 Compact, Xperia Z5 Premium, Xperia Z4 Tablet and Z3+ (Dual Sim Version). The new update moves the build number from 32.1.A.1.163 to version number 32.1.A.1.185.

This update includes the best features of Android Marshmallow like Google Now on Tap, Doze mode, and improved Single App permissions, along with the February Android security patches. It also comes with a refreshed Camera 2.0.0, that includes the ability to swipe between camera modes like video or manual as well as real-time adjustment sliders for brightness and other settings.

Xperia Z5
Image Credit : https://www.flickr.com/photos/128612417@N08/
If for some reason, you cannot view or install the update through the services than you can follow our detailed guide on installing the Xperia Z5 marshmallow update. You can easily update Sony Xperia Z5 to Android 6.0 Marshmallow official firmware – and also root Xperia Z5 phone on this firmware.

As you continue reading below, we will guide you how to install Android 6.0 Marshmallow on Xperia Z5 (E6603) and Xperia Z5 (E6653) using Flashtool. Don’t forget to backup all your apps and personal data as a precaution. Major revamps like these usually have a wipe script with them, meaning, after you finish the update process, your phone will be completely wiped. Now in order to avoid any problems we recommend backing up your data which might include documents, contacts, or even downloads. Let’s continue with the tutorial now.
NOTE: Make sure your Android device is charged up to 80-85% battery level. Why? Because, if your phone goes off suddenly while installing a custom ROM, flashing an official firmware update or installing mods etc. — your phone might get bricked or go dead permanently. No one wants that, right?
Disclaimer: Please read the following instructions thoroughly before attempting to flash your phone. Droidphoria.com absolves itself from any responsibility should something go wrong. Please proceed with caution and at your own risk.

## This Guide is ONLY for Windows Users ##

We have put together a step-by-step instructions guide on how to Update Xperia Z5 to Android 6.0 Marshmallow Official Firmware. This is a Detailed In-Depth tutorial. Please read the tutorial carefully. We request you to read the full tutorial once before actually performing in your device.

To Remember :
  • This tutorial is for Xperia Z5 (E6603) Latin America Generic and Xperia Z5 (E6653) Philippines Generic
  • Please don’t try this on any other variants of Xperia.
  • This tutorial has been performed on Windows, but anyone familiar with Fastboot on Mac or Linux can perform this as well.
  • Make sure you backup all your data in your phone before proceeding as it will erase all data.
  • You will not void your warranty by Installing this Firmware because this is a Official Stock Marshmallow update by Sony.

Xperia Z5 Marshmallow Firmware Details:

Xperia Z5 (E6603) 23.5.A.0.570 Latin America Generic (Android 6.0)
  • Model: Sony Xperia Z5 (E6603)
  • Firmware version: 32.1.A.1.185_R3C
  • Region: Latin America (Generic) [1298-7308]
  • Android version: 6.0
Xperia Z5 (E6653) 32.1.A.1.185 Russia Generic (Android 6.0)
  • Model: Sony Xperia Z5 (E6653)
  • Firmware version: 32.1.A.1.185_R4C
  • Region: Russia (Generic) [1298-8147]
  • Android version: 6.0

How to Install Android 6.0 Marshmallow Xperia Z5 :

Step 1 : You need to have all the necessary Sony Drive Installed on your PC. Confused, Right ? I Guess you are thinking about which Software you need to install !! The best way to do this is to install Official Sony PC Companion.

Step 2 : Connect your Xperia Z5 to the PC before starting the process to download the necessary USB and ADB drivers. The best way to do this is to Power Off your Sony Xperia Z5 and then connect to your PC whilst holding the Volume down button.

Step 3 : Download Official Flashtool and Install Flashtool drivers from the following location:
‘C:\Flashtool\drivers’. Tick the “Flashmode Drivers” and “Fastboot Drivers” to install.
Flashtool Xperia Driver Pack

NOTE: To install the Flashtool drivers for Windows 8/8.1/10, please follow the steps below :

1. Press the Windows key + R together and in the ‘Run’ box type: shutdown.exe /r /o /f /t 00
 Now make the following selections to boot into the Start Up Setting Screen: Troubleshoot > Advanced options > Start Up Settings > Restart
 Then, when the computer restarts, select number 7 i.e. “Disable driver signature enforcement”. Your computer will start with Driver signing enforcement disabled until the next reboot.

2. Now you can install the Flashtool drivers.
 Windows will warn that the driver is not signed and will require you to confirm the installation.
– Once the installation is complete, reboot your computer.

Step 4 : Enable “USB debugging” on your Sony Xperia Z5. On your device, go into Settings > About and find the Build Number and tap on it 7 times to enable developer settings. Press back and go into Developer Options and enable USB debugging. (USB-Debugging is required for the commands “adb” and “fastboot” to work.) 

Step 8 : Enable "Unknown Source" on your Sony Xperia Z5. Activating the "Unknown Source" is necessary to allow installation of apps from unknown sources. To enable Unknown Source, go to Settings >> Security and check Enable Unknown Source.

Step 9 : Download Android 6.0 Marshmallow FTF Firmware Files for Xperia Z5 from here:

For Xperia Z5 (E6603): Xperia Z5 (E6603) 32.1.A.1.185 Latin America Generic

For Xperia Z5 (E6653): Xperia Z5 (E6653) 32.1.A.1.185 Russia Generic

Step 10 : You will need FTF firmware file to install new software onto your device. To create your FTF firmware file, you will first need to launch Flashtool and then click on the XperiFirm icon as highlighted below.

Marshmallow Installation Guide for Xperia

Now XperiFirm software will launch in a new window. Navigate to your phone on the left panel. From the middle panel, choose the firmware for your region/carrier. The panel on the right side will show which firmware is available for you. Click on it to download the file.

Important : Be careful while downloading the correct file. Only download the firmware of your Model and variant Number. For example, if you own an Xperia Z5 (E6603), only browse and download the firmware builds listed under E6603.


Flashtool Xperia Driver Pack

Once clicked, you are asked to confirm whether you want to download the firmware. Ensure that “Unpack automatically” is ticked and then click “Download” to proceed.

Once complete, you will see the following pop message “Unpacked Successfully!” Click OK.

The same “Unpacked successfully!” message will appear on the download dialog. Click “Close” to proceed to the next step.

Now you will revert back to Flashtool which will start creating FTF firmware file. please wait until the end process .

You will see “Torrent file creation finished” then your FTF firmware file has been successfully created.

Now you should be in the source folder where the FTF firmware files are located. Navigate to: "C:\Users\[Your PC Name]\.flashTool\firmwares"

Step 11 : Open Flashtool and then click on the lightning bolt in the top left of Flashtool as highlighted below:

Flashtool Xperia Driver Pack

A Pop-Up of Bootmode Chooser will launch. Select “Flashmode” and click “OK

You should already be in the source folder as I mentioned in Step 10 where the FTF firmware files are located.

Select the firmware build version that you want to flash from the “Firmware” panel. Ensure the device variant is the same as the model number of your Sony Xperia Z5.

If you want to Keep your apps, data, and other media files, make sure to Untick "USERDATA" option within the "Wipe" panel. However for upgrading to a major new Android, we recommend having a clean installation so that you do not face any error issue after the installation.

For Clean Installation, Tick all options under the “Wipe” panel. This will wipe all of your data though including your photos and videos, so please ensure you have these backed up elsewhere.
Important : You may see the following ‘SIMLOCK’ option ticked under the “MiscTA Exclude” pane. DO NOT untick SIMLOCK as it could lead to problems with the network lock on your device.
Step 12 : Click “Flash”. Flashtool will then indicate that it is “preparing files for flashing”.

You may have to wait around 60 seconds for the pop-up below to appear. Once it does, you should now connect your Sony Xperia device. Make sure the device is powered off and then hold the ‘volume down’ button whilst connecting the USB cable. Once the pop-up disappears and flashing has started, you can let go of the ‘volume down’ button.

Flashtool Xperia Driver Pack

Flashtool will then start flashing your Xperia device. Once you see “Flashing finished” as indicated below, your Sony Xperia has been successfully flashed.

Flashtool Xperia Driver Pack

Now disconnect your Xperia Z5 and power on the handset. Your Z5 will boot now and it might take about 5 minutes to boot on your first time after flashing a new ROM. So, please wait.

Congratulations! You have just installed Android 6.0 Marshmallow on your Sony Xperia Z5! Go to Settings > About phone to verify.

Any problem during installation ? Do let us know by commenting below! Also, don't forget to SHARE, if you found this post helpful.

Originally from the India, 18 year old entrepreneur who writes on various topics like Online Earning, Android Reviews, Blogging and a lot more. A dedicated Android fan, Saeed has never owned an Apple device, of any kind, and doesn't see this changing anytime soon.

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