Tips & Tutorials

Update Xperia Z3 to Android 6.0.1 RXSW v4 OTA Marshmallow Custom Firmware

Xperia Z3 got Android 6.0.1 Marshmallow officially by Sony and here is a custom firmware based on that official firmware. This ROM is fully deodexed and rooted with SuperUser. It is also supported by RXSW v4 OTA updates which means you won’t have to flash the ROM again when a new build comes out. This custom firmware also offers better memory management. This ROM is very stable, fast and smooth. You’ll have an awesome time with this ROM. If interested in Android 6.0.1 for other phones, check out our new Custom ROMs section. You can update Xperia Z3 to Android 6.0.1 RXSW v4 Marshmallow custom firmware using the tutorial below. This is not an official release by Sony, but just a custom ROM which would require a custom recovery like ClockworkMod in order to flash the ROM zip file on your phone.

In this tutorial, we will tell you how to install Android 6.0.1 RXSW v4 Marshmallow ROM on Xperia Z3 with complete steps using CWM recovery. We also have several tips on how to backup your phone data and also some more tips that you have to keep in mind before proceeding to the tutorial on the next page. You will have to wipe your previous personal data and apps as usual when installing custom ROMs. The following tips are important as they will help the installation procedure to go smooth without any issues. Let’s begin with the tutorial below.



Disclaimer: All the custom ROMs and firmwares, official software updates, tools, mods or anything mentioned in the tutorial belong to their respective owners/developers. We ( or the developers are not to be held responsible if you damage or brick your device. We don’t have you on gun point to try out this tutorial 😉

Android 6.0.1 RXSW v4 Marshmallow ROM Details:

This amazing RXSW v4 custom ROM comes with tons of new features and is based on Android 6.0.1 Marshmallow. A quick list of the main features in RXSW v4 is given below and we are sure you’d love to use this on your Xperia Z3:

  • Based on latest Official Stable [23.5.A.0.570]
  • Tweaked RAM Management
  • 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

There are tons of useful articles and how-to guides on Team Android for the Sony Xperia Z3, but we think you might be interested in the following posts:

Like this RXSW v4 ROM based on the latest Android 6.0.1? We love it too and we know you are looking forward to install it on your phone now. Now please read below for important tips on how to make sure your installation goes smooth and you do not end up with any problems.

If you plan on rooting this phone or are still confused for why to root Sony Xperia Z3, read: Benefits of Rooting Your Android Device.

Sony Xperia Z3 USB Drivers

You will need to connect your Android phone with the computer. For that, please make sure you have installed the USB drivers for Sony Xperia Z3 properly. If not, you can download the latest official drivers from our Android USB Drivers section here:

Download Sony Xperia Z3 USB drivers!

Backup and Other Important Tips

Done with the USB drivers? Perfect. The tutorial is on the next page, but first, please take a look at the following tips and important points you need to take care of. These are important, as we don’t want anyone losing their personal data or apps:

Always backup your important data that you might need after you install a new custom ROM, an official software update or anything else. Make a backup for just in case, you never know when anything might go wrong. See below for some tips on how to backup data:

Sony users can also back up data using Sony PC Companion. If you backup data manually, you get more options what to choose from and it is very easy to move data across Android devices from different manufacturers, i.e moving Sony Xperia Z3 backup data to HTC One X.

If you already have a custom recovery (ClockworkMod, TWRP etc.) installed on your phone, we strongly recommend a backup using that as it creates a complete image of your existing phone set up.

A few more optional tips that you should remember:

1. Having problems connecting your Android phone to the computer? You need to enable USB debugging mode. See here: How to Enable USB Debugging — for Gingerbread, Ice Cream Sandwich and Jelly Bean.

2. Make sure your Android device is charged up to 80-85% battery level. This might help you: How to Check Battery Percentage. 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?

4. Most of the tutorials and how-to guides on Team Android are for factory unlocked Android phones and tablets. We recommend NOT to try our guides if your phone is locked to a carrier, unless we have specified the carrier name or device model.

If you find the above tips useful and they were helpful to you, please consider giving us a +1 or LIKE to thank us!

All set and ready? Good. Now, let’s proceed with the tutorial on the next page and update Xperia Z3 to Android 6.0.1 RXSW v4 Marshmallow custom firmware.

About the author

Saad Khan

A geek that has converted into a Software Engineer. An audiophile who love to read and write reviews/tutorials about gadgets and new tech stuff.