Moreover, the ROMs are pre-rooted, so you no longer need to worry about losing superuser access. With this, you get a wide range of firmwares to choose from. You can install the latest Android 5.1.1 firmware or the KitKat firmware onto your Xperia Z3. You can flash the firmware with specific Baseband version.

This will provide you a dedicated backup structure, where you will later put the stock firmware backup firmware files. Before we begin make sure you have one of the Xperia Z3 variants listed in this tutorial. As it is a flashable zip file, you need a custom recovery like TWRP installed on your device. For XZ dual recovery to work, make sure your bootloader is locked. Recovery mode is like Windows safe mode, but it far more advanced. Android recovery mode loads the stock firmware and you can access those Android files, edit them, replace them, and even modify the files during bootup.

If this method did not work out like in our case only then proceed to install patched boot.img. Here is the full list of Fastboot commands if you want to further customize the experience. You need this to flash a custom ROM, Kernel, mod, and other .zip or .img files. When you launch the app for the first time, you’ll be prompted to grant it root permissions.

• So if you have any of them follow and proceed the process.
• The idea behind the app is to provide complete application backups without any implications, such as requiring root.
• Once user gets full access, he can play with the entire power of the device but this may damage the device.
• Even with all the features that Syberia OS packs, it’s a very stable ROM and offers smooth and lag-free performance.

We would give our best to keep the links up to date for the latest ROM and boot images. Still, you can check this XDA thread for the latest links. You might want to revert your phone to stock Android for many reasons. It can also be used if your custom ROM experience wasn’t as satisfactory as you thought initially or if you want to receive official OTA updates again. If you have a Google account, you can switch your phone by logging into your Google account and selecting “Manage devices” on the main page.

You have to contact your android device to PC/Laptop and enable file transfer from your phone. Now copy the following folders as shown in the below screenshot. Thus a backup can be used to restore your device to an exact state and thus proves as a lifesaver in case if something goes wrong. Moreover, many people prefer apps like Titanium backup for taking regular backups but it should be noted that no app can save every tiny detail of your phone as backup does.