Sony Xperia Z has been updated to Android 4.4.4 KitKat and a new update with 10.5.1.A.0.292 build number has been rolled out. The new update fixes some bugs found in number of models. The new update is available for download and it can be manually installed. If you have not updated your device yet, then you can update Xperia Z to Android 4.4.4 KitKat 10.5.1.A.0.292 build using the following guide. Download the ftf from this guide as well.
After updating, the root access would have been wiped, if it was rooted already. If you have not rooted your phone before, then you should rot your device now. Rooting Android phone provides endless possibilities for the users to make additions to their device in countless ways. To root Xperia Z on 10.5.1.A.0.292 build number, you will have to flash the custom recovery provided here using custom recovery. This rooting method is for Android 4.4.4 KitKat on Xperia Z. Even if there is no custom recovery or root installed already, this method will work perfectly. This method will install dual recovery; Philz touch CWM and TWRP custom recovery. Fastbooot will be used in this method. It is recommended that you use Windows 7 to use fastboot. Fastboot does not work properly with Windows 8.
Requirements For Rooting
- Xperia Z C6602 and C6603
- Android 4.4.4 KitKat 10.5.1.A.0.292 firmware – Get Here
- Unlocked Bootloader
- Working fastboot (Windows 7 is preferrable and get USB drivers below)
1. ADB and Fastboot Drivers:
ADB is basic tool for any Android related operation and fastboot is one of its applications. ADB installs all the necessary ADB drivers for Android powered devices and activate the developer mode on device. Various tools require ADB and other components to be installed on the PC for proper functioning. Fastboot is used to issue various commands like for flashing a recovery or a kernel. It is also used in commands related to bootloader unlocking. You can use any of the two tools listed below for ADB and Fastboot commands. First one is a full custom guide, and requires heavy installation while Minimal ADB and Fastboot Installer require a mere ~2MB install. However, the first one is more stable and long-lasting. Choose the one suitable for you.
2.Sony Xperia Z USB Drivers:
Sometimes, you might get the error, waiting for device or similar errors while issuing commands or using any tool. This is mainly due to faulty connection. If you have properly connected your phone with your pC, via a healthy cable and phone is being charged but not being recognized, then the problem is USB drivers. When a phone is connected, PC searched for drivers online and also on PC. You can install USB drivers beforehand and when you’ll connect PC with phone, it will install all the USB drivers automatically. Download Flashtool from the following page, install it, navigate to its installation folder and locate the drivers folder. Install drivers specific for Xperia Zl, including fastboot and flashmode drivers. Make sure that PC installs all these drivers when you connect it.
3.Battery must be charged over 50%:
This is one pf the most important precautions and requirements. You must be aware of the fact that most OTA updates can be installed only if battery is charged more than 50%. This is for the safety of device. The device must not turn off during the whole process. Since these are custom methods, phone may enter a bootloop or may plunge into some other problem. Low battery can be a critical issue in these cases. Therefore, you must charge your phone above 50%.
4.Check your Phone Model:
Many times I have seen people bricking their devices because of their negligence. Note that there are several model numbers, with prominent changes for almost every device out there. Therefore, you must confirm that the given guide is for your device’s model number. As an additional precaution, you must also check that the guide is for your phone’s Android version. This is not necessary in all cases. You can check model number and Android version by navigating to Settings > About Phone.
5.Do not turn off Computer during Updating Process:
If either your phone or PC goes down in the mid of process, you might end up bricking up your precious device. Therefore, make sure that your PC will not turn off or restart during the process. If you are using Windows, make sure that there are no pending updates to be installed in, for example ten minutes. PC will restart automatically, disturbing everything. Therefore, make sure that your PC will remain turned on during the whole process.
Also note that devices are not bricked in every case. It is very rare indeed. however, we must always choose the safe path.
6.Backup all your important Data:
Most custom methods will wipe all dat stored on the device. Some methods might not do so but a custom method can make your phone end up in a bootloop and then a factory reset will be essential. Therefore, always make a backup of your device before anything custom. Here is a guide for non-rooted phones, which guides your through all steps to back up a non-rooted device.
You must backup all media files stored in internal storage. As a safe precaution, you might remove SD Card while doing it, however it has never caused anyone any kind of issue. All deleted applications can be installed from Play Store My Apps tab.
6.Use correct commands for your smartphone:
You must pay close attention to all the commands described here. You must follow them closely in order to avoid anything unplanned and unpleasant, for that matter. Therefore, always confirm before executing a command.
7.Enable USB Debugging:
Developer Options are, as the name indicates, for development purposes. They are available in all Android devices. The most used and talked about option is USB Debugging. It allows your phone to be handled by PC. You can execute direct commands to your phone via PC. Here is the list of ADB commands, which can be used with USB Debugging enabled. You can also recover data using ADB commands. Here is complete guide.
To enable USB Debugging, navigate to Settings > Developer Options and enable USB Debugging. Note that in Android 4.2.x and higher, developers options are hidden by default. To unlock these, navigate to Settings > About Phone and locate the build number. Tap is 7 times and you will see a pop up message saying “You are now a developer”.
After enabling Developer Options, you will have to connect to PC and then enable the connection. It is specific for KitKat devices.
8.Backup TA Partition:
TA Partiton contains very important DRM Keys. Losing TA partition also means that BE2 will not work in Album app on Xperia Z. Warranty cannot be gained back by re-locking the bootloader, without TA partition. To make a backup of TA partition, bootloader must never be unlocked and your phone be running Android 4.2.2 Jelly Bean. You can check the folllowing method of making a backup of TA partition.
Install Recovery on Xperia Z 292 Firmware
- Download the recovery file and extrct its contents anywhere on PC
- Extract boot.img and copy it to Fastboot folder or Minimal ADB and Fastboot Installation folder
- Now turn off Xperia Z
- Connect USB cable with PC only
- If you have copied boot.img to Minimal ADB and Fastboot folder then follow these steps
- Now open Minimal ADB and fastboot (Tip: Launch from search bar in Start button)
- Now connect USB cable with Xperia Z holding volume Up button
- Once the LED turns blue, leave the button
- Wait for five seconds, LED should not turn red
- Once LED is stable, then type fastboot flash boot boot.img in Minimal ADB and fastboot
- It will flash the file in few seconds
- Once you see finished message, then type fastboot reboot
- While phone is turning on, when you see LED first, press volume Up to enter CWM
- Use Volume down to enter TWRP
- Both of these custom recoveries can be used with touchscreen
- Once done, go back to main menu and reboot the device
- That’s all! You have installed recovery on Xperia Z KitKat firmware
- If you are using ADB and Fastboot Tools, then you will have to create a Fastboot folder as explained in that guide
- Then copy boot.img to fastboot folder
- Inside folder, holder shift button and right-click on mouse
- Click on Open Command Window Here
- Now follow step number 7 to 16
Root Xperia Z 292 Firmware
- Once recovery has been installed successfully, copy SuperSU zip to phone’s storage
- Now reboot into CWM or TWRP using method explained above
- Navigate to the folder where you have put SuperSU zip file
- Install this file
- Once done, navigate to main menu and reboot the device
- You will find SuperSU app in app drawer
- That’s all! You have rooted Xperia Z 10.5.1.A.0.292 firmware
Got any question? Ask me in the comments below