Install Android 6.0.1 RXSW v4 OTA Marshmallow Custom ROM on Xperia Z3

How To Update Xperia Z3 to Android 6.0.1 RXSW v4 OTA Marshmallow Custom ROM: Sony released the official Android 6.0.1 Marshmallow previously. You may already have installed Android Marshmallow on your Z3 but if you want to taste something enhanced then you must try to use a custom ROM. The custom ROM we are going to share in this guide is based on Android 6.0.1 Marshmallow which is fully deodexed and rooted with SuperUser. The good thing in this ROM is, it also supports RXSW v4 OTA updates, so there is no need to flash the ROM again when a new build comes out. Many users have tested the ROM and found it very stable, fast and smooth.

All you need to have the latest version of a custom recovery like CWM or TWRP already installed on your device. A custom recovery is required to flash the ROM and Google Apps zip files on Xperia Z3. You can update Xperia Z3 to Android 6.0.1 RXSW v4 Marshmallow custom ROM by following the given detailed guide. Keep in mind that this ROM is not officially released by Sony but just a custom ROM. So you may face some minor bugs or not functioning features. But there is no major bug and you can use it as a daily driver. Now proceed to install Android 6.0.1 RXSW v4 OTA Marshmallow Custom ROM on Xperia Z3.

Install Android 6.0.1 RXSW v4 OTA Marshmallow Custom ROM on Xperia Z3

Android 6.0.1 RXSW v4 Marshmallow ROM Details:

  • Based on the latest Official Stable [23.5.A.0.570]
  • RAM Management Tweaked
  • Tweaked Interactive Governor
  • Tweaked Virtual Memory
  • TWRP Recovery 3.0.2, SuperSU 2.71 and Busybox included
  • Fully Rooted
  • System R/W working [RIC Defeat]
  • ByeSELinux for MM
  • Signature-check disabled [Superusermod]
  • RXSW v4 OTA App [Optimized for MM now]
  • Homescreen Off Center
  • Fully Deodexed
  • Heavily Debloated [No Features missing]
  • Sonys ROM has 160mb free System Space and my ROM has over 1,3gb free Space on System
  • Camera Addon
  • Photo Editor and Movie Creator Addon
  • Disabled Mobile Data Notification
  • Check the ROM to find even more Features

Download Android 6.0.1 RXSW v4 OTA Marshmallow Custom ROM for Xperia Z3


  • Your device must have an unlocked bootloader.
  • Install ADB and Fastboot on your PC.
  • Ensure that your Xperia Z3 has enough battery left, preferably above 50%, to prevent any accidental shutdown during the process.
  • Enable USB Debugging Mode on Sony Xperia Z3 from Settings –> Developer Options.

Steps to Install Android 6.0.1 RXSW v4 OTA Marshmallow Custom ROM on Sony Xperia Z3

1: – First, download Android 6.0.1 RXSW v4 OTA Marshmallow Custom ROM for Sony Xperia Z from the above link on the desktop of  your computer.

2: – Extract boot.img from the zip file separately.

3: – Connect and mount your Sony Xperia Z3 USB memory on your PC via its USB data cable.

4: – Transfer the downloaded 6.0.1 ROM zip file to the root folder of your phone memory / SD card.

5: – Now, move the boot.img file to android-sdk-windows\platform-tools directory.

6: – Then turn OFF your phone.

7: – Next, boot your device into Bootloader Mode. To do so, turn ON the phone by pressing and holding the Volume Up button while connecting it again with the USB cable. Your phone LED will turn blue and it will get into the Bootloader Mode.

8: – While your Z is now in fastboot mode, navigate to android-sdk-windows\platform-tools directory (on your computer) and open Command Prompt (Shift + Right-click > Open Command Prompt).

9: – Type the following command and press Enter.

fastboot flash boot boot.img

10: – Then, type the following command and press Enter.

fastboot reboot

11: – Next, boot your phone into Recovery Mode. Switch ON the phone while pressing the Volume Up or Volume Down buttons a few times when you see the LED light turn pink or any other color. You can also follow this guide on How to Enter Recovery Mode on Any Android Phone.

12: – While the phone is in TWRP Recovery, perform a full data wipe by tapping on the ‘Wipe’ button. Then swipe on the “Swipe to Factory Reset” option at the bottom.

13: – Navigate to the main menu of recovery and tap on the ‘Install’ button. Choose the ZIP file that you copied to your phone memory in Step 3 from the list.

14: – On the next screen swipe on the “Swipe to Confirm Flash” option to confirm installation. The installation will begin.

15: – Once the installation completes, tap on the “Wipe cache/dalvik” button if you get into any boot loops or other issues.

16: – Reboot your phone by selecting the “Reboot System” button.

Your phone may take about 4 to 5 minutes to boot for the first time after installation.

Done! You have successfully installed Android 6.0.1 RXSW v4 OTA Marshmallow Custom ROM on Xperia Z3.

Let us know in the comments area below if you have any issues or question regarding the above guide.

A first-time boot will take a couple of minutes. Let us know your feedback on RXSW v4 in the comment section below.

Aamir Jamal

An Android Geek and audiophile who love to read and write reviews/tutorials about gadgets and new tech stuff. He has written 1007 guides and other posts.

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