The last Jelly Bean 4.2.2 software update that rolled out for Xperia Z was not too long ago, and there’s no telling when or whether Sony would release the latest Jelly Bean 4.3 for their former flagship device – but like always, we have a solution for that. The 4.3 Jelly Bean update might not be released for the Xperia Z, but you can sure as hell do it anyway by installing the CyanogenMod 10.2 Nightly build custom ROM on your Xperia Z. The ROM is based solely on Jelly Bean 4.3, along with a handful of cool tweaks and features to bring you the most stabilized form of Jelly Bean right on your Sony Xperia Z. So if you’re all up for installing this Jelly Bean 4.3 based custom ROM, then let’s take a good look at a guide we’ve provided to help you accomplish this.
CyanogenMod 10.2 – Brief Overview
If you’ve already tried installing custom ROMs on your Android device, and have bricked it a few times, then the procedure we’ll use for installing the CM10.2 Nightly build on your Xperia Z won’t be anything different. But if this is something new to you, then don’t sweat it – we’ll walk you through every bit of the step so you don’t end up with a bricked phone. There are 2 things you need to do before installing this Jelly Bean 4.3 custom ROM on your Xperia Z – and that’s achieving root access, and hen installing a custom recovery. After you’ve done these two, we can move on to the installation guide. In Step 1, we’ll get cracking with the rooting procedure, which will void your warranty (Duh) and give you full root access to system files. In Step 2, we’ll install a custom recovery – Why? – Because you’re going to install the CyanogenMod 10.2 Jelly Bean 4.3 ROM using this recovery mode. If you’re already done with these two steps, then feel free to jump to Step 3 at the end to install CyanogenMod 10.2 Nightly ROM on your Xperia Z.
Things to be aware off
- Make sure you’ve charged your Xperia Z to at least 85 %
- You must have the USB cable that came with your Xperia Z
- This guide will not work with any device other than the Xperia Z
- Back up your data since there’s a chance you might lose – stuff like your songs, images, messages, contacts etc.
- Make sure you have the drivers installed on your computer to support your Xperia Z (should already be there if you’ve moved images before)
- Installing CyanogenMod 10.2 Nightly custom ROM to get Jelly Bean 4.3 is a totally unofficial method as the ROM is a third party development – there’s no telling what can happen to your device after every step so we cannot be held liable if you screw up.
Step 1: Rooting your Sony Xperia Z
- Download the following files for rooting your Sony Xperia Z:
- Sony Flashtool.exe – Install it on your computer and launch it
- DooMLoRD_Easy-Rooting-Toolkit_v18_perf-event-exploit.zip – extract it and you’ll get the runme_file. Move it somewhere safe.
- After you’ve downloaded all the files above, check the Device model and Flashmode drivers boxes in flashtool and connect your Xperia Z to the computer via the USB cable.
- After you’ve connected your phone, click on the lightning button and a new window will pop up. If you want to wipe the data on your phone, then check the cache options and data wipeout – if not, then keep them deselected.
- In the flashtool window, browse and select the XperiaZ_C660X_KernelOnly_10.3.A.0.423_Generic_NL.ftf that you downloaded earlier on your computer.
- After that, hit the flash button and a bunch of instructions will appear on the screen. What you have to do is first unplug your device, boot it into download mode by first turning it off and then pressing/holding down the Volume Down button to reboot into download mode. Connect it back to your computer.
- After you’ve reconnected, the flash will start. After it completes (a ‘Flash finished’ message will appear), disconnect your device again and reboot.
- Close Flashtool and reconnect your Xperia Z to the computer. Now click on the runme_file that you extracted earlier from the zip – this will root your phone completely.
After you’ve rooted your Xperia Z, it’s time to install a custom recovery on it. There are many recoveries you can flash on your device, but the most used ones are TWRP and CWM – in this case we’ll be using TWRP as it’s easier to use.
Step 2: Installing Custom Recovery on Sony Xperia Z
- Download the XZREcovery File to your computer, it’s an app.
- Connect your Xperia Z to the computer and move this to your device’s root storage (in plain sight, not in any folder)
- Now disconnect your Xperia Z and search for the apk file in your SD card storage
- Select the app after you’ve found it and you’ll be prompted to grant root access – grant it and select the ‘Install Recovery’ option
- After that, the TWRP installation will start on your Xperia Z. And after it finishes, just reboot your device.
You’re done! Now that we’ve got the two most important things covered in the guide, let’s move on to the installation process and get you’re Jelly Bean 4.3 on your Xperia Z via the CM10.2 ROM
Step 3: Installing CM10.2 Jelly Bean 4.3 Custom ROM on your Xperia Z
- Download the CyanogenMod 10.2 Jelly Bean 4.3 and Google Apps package zip files to your computer.
- Now connect your Xperia Z to the computer via the USB cable and move both these files as it is (zipped condition) to the root storage of your phone (like before, not in any folder) and disconnect after.
- Now boot your Xperia Z into the TWRP custom recovery mode by first turning it off, and then on again by pressing Volume Up + Home button + Power button.
- After you’re in recovery mode, select Clear cache and then Dalvik Cache under the Advanced option. Now select Data Wipeout to factory reset your xperia z
- After wiping out the data, select the Install options and select the CM10.2 Jelly Bean 4.3 zip file you moved earlier. Install it, and after it completes – go back to the recovery menu and select the Reboot option.
That’s it, after you’re Xperia Z reboots – you’ll be using Jelly Bean 4.3 on your Xperia Z. But hold your horses, first boots are always the longest so sit tight, nothing is wrong.