How to Flash a Custom Recovery on the Sony Xperia Z Ultra
Every Android device has, what is called, a recovery image on it. This is basically a part of the Android operating system that you or the manufacturer can access if your device becomes unresponsive and then use it to restore your device.
A custom recovery image, however, is a recovery image that a developer has altered that can not only help the device if it becomes responsive, but also has the added benefits of allowing us to make major changes to the operating system and have even further customizations on your device.
In this procedure, we’ll show you how to flash a custom recovery on your Sony Xperia Z Ultra.
After flashing a custom recovery on Sony Xperia Z Ultra, you’ll be able to:
- Perform full backups of your device (literally save EVERYTHING from it).
- Increase your device’s performance (after flashing something called a kernel
- Increase your device’s battery life.
- Flash custom ROMs (these make it possible to flash a newer version of Android, totally new user interfaces, add tons of new features, and much more).
Interested? Here’s how to flash a custom recovery on your Sony Xperia Z Ultra:
I. Before You Begin
1. You must be rooted before you can do this procedure. Please head to our How to Root the Sony Xperia Z Ultra procedure first, finish it, then return to this procedure and continue.
2. This should flash dual recoveries on your device.
II. Downloading Required Files
1. Download Dual Recovery Installer and save it to your Desktop.
Dual Recovery Installer (Download link’s available in the second post)
III. Flashing a Custom Recovery on the Sony Xperia Z Ultra
1. Extract files from Dual Recovery Installer by right-clicking on it and selecting Extract here.
2. Turn ON USB debugging on your device by going to Menu > Settings > Developer options > USB debugging.
3. Plug in your device to your PC via USB cable.
4. Double-click on install.bat and it’ll launch.
5. It should flash the recovery on your device.
6. Once done, your device should reboot into the newly flashed recovery mode.
7. You’re all done!
All set! Now, you can head to our How to Flash a Custom ROM procedure for the Sony Xperia Z Ultra to open up a whole new world of customizations for your Android device!
By the way, don’t be scared, you can always put your device back to stock by heading to our Rooting How To’s section, finding your device, and doing the How to Unroot listed for it there.
i have tried this dual recovery many times and it does not work.
Hi kyle,
What does it say when you try to flash the recovery? What error does it generate?
Hey i installed this dual recovery and it did show up the recovery for the first time. One is philz and the other is twin. But when i tried again to get into recovery to flash a custom kernel it wont get into recovery. I tried the quick boot application from the play store and tried physically too i.e using the power button to switch on the device then i pressed the volume up key a few times, this should get me into recovery! But it wont!!! It simply reboots the phone like it normally does! i tried to use this file i.e install.bat and redo the process! But it simply wont work! Can you guide me on this? Also is there any other way with which we can only use one recovery preferably CWM?