Update Xperia Z1 to Android 4.4.2 KitKat Firmware with MoKee AOSP ROM

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Xperia Z1 is a great Android smartphone, but unfortunately there is no official Android 4.4.2 KitKat update available for it. But, if you own this device and want to run on latest Android OS, then I recommend you the MoKee AOSP custom ROM firmware. This software is of course based on stock Android 4.4.2 KitKat OS, which means that a custom version of the same will be flashed on your phone. So, use this step by step guide if you want to learn how to install MoKee AOSP custom ROM on Sony Xperia Z1.

Like any other custom ROM, the MoKee AOSP platform represents a modified version of stock Android OS. Therefore, the KitKat firmware has been customized and optimized by third party devs – those of xda-developers – especially for the Sony Xperia Z1. Basically that’s why with MoKee AOSP firmware your smartphone will run faster and also better. But we will talk about this in a minute. Now it should be clear for you that this Android 4.4.2 update isn’t representing an official OTA that is released by Sony for your Xperia Z1. We are dealing with a custom ROM that can be only manually installed on your Android device.

MoKee AOSP custom ROM is as I have already stated based on pure Android 4.4 KitKat OS, and a modified version of the same will now be installed on your Xperia Z1. Because of that, MoKee AOSP will bring both stock and extra features to your device along with other customization options that can be used for improving the performances of your device. Therefore, flashing MoKee AOSP will also help you in optimizing and customizing the performances and the looks of your Xperia Z1.

In order to make a proper idea about what I am saying here is what you need to know: with MoKee AOSP you will be able to remove bloatware from your Xperia Z1, remove in built programs or add other custom apps. Also, you will be able to overclock your Android device or undervolt the CPU frequency. In that matter you will bump the speeds of your smartphone, improve the battery life and update the web browsing experience. So, if you want to enjoy all that and even more, complete this dedicated step by step guide.

The MoKee AOSP firmware is a stable Android 4.4.2 KitKat update as the users who have already installed the ROM on the Xperia Z1 had declared that the software is running smoothly and without lags or other problems. There are no bugs or things that aren’t working properly and as I have mentioned, you have both stock and extra (that cannot be found on the default version of Android system) features, apps and capabilities.

The guidelines described on this tutorial can be easily performed even by a newbie. Therefore, you have nothing to worry about. Anyway, do consider this procedure risky and complex and don’t apply things by yourselves or without consulting the lines from below. If you mess things up, then you can end up in bricking your Sony Xperia Z1.

First of all it is important to have a rooted Android device. If your handset isn’t rooted then use our one-click root procedure that can be easily applied on the Sony Xperia Z1. After that, a custom recovery image must be installed on your phone. Again, if your Xperia Z1 isn’t installed with a custom recovery, don’t go any further without flashing the latest version of CWM or TWRP recovery. Do note that a custom recovery can be flashed only after gaining root access. Now, all these are unofficial procedures, which mean that the warranty of your device will be void. Of course you can anytime restore the warranty by downgrading or updating your device to official or stock Android OS.

I recommend you to backup your data before going any further. By using a custom recovery for applying a custom ROM a wipe is being required. Without wiping the system and clearing cache you will not be able to use the custom ROM. Therefore, because of that a backup is being more than recommended. For saving everything that’s important for you, you can use dedicated apps from Google Play and you can also make a Nandroid backup by using the custom recovery you have just installed on your Sony Xperia Z1.

After that, just make sure that you can use a computer; of course your smartphone and its USB cable must be near you. On both computer and device you should first deactivate the antivirus and any other security protection – these tools might interfere with our work. On your phone from path “menu – settings – developer options” enable USB debugging option as you will have to establish a connection between your computer and your smartphone. On your Xperia Z1 check the battery status: if there is less than 60% power left, before doing anything else plug in the charger – else your phone might get turned off and bricked in the middle of the update operation.

Also, it should be clear for you that this tutorial is compatible only with the Sony Xperia Z1 Android smartphone. Using the steps from below for installing MoKee AOSP Android 4.4.2 firmware isn’t recommended in case you are having a different Android device – you can end up in bricking your phone or tablet.

How to Update Xperia Z1 to Android 4.4.2 KitKat Firmware with MoKee AOSP ROM

  1. On your computer download the update from here; then download Google apps package from here.
  2. Save both files on desktop.
  3. Don’t unzip the downloaded files.
  4. Now, connect your Z1 with your computer; use the USB cable for establishing the mentioned connection.
  5. Place the files from desktop on your phone’s SD card.
  6. Remove the USB cable and turn off your smartphone.
  7. Reboot in recovery mode.
  8. From there first wipe the system by selecting “wipe data factory reset”.
  9. Also, clear cache by choosing “wipe cache partition” and “wipe dalvick cache”.
  10. Return and select “install zip from SD card” followed by “choose zip from SD card”.
  11. Pick the update file and install the same.
  12. Similar, repeat the step and install Google apps package.
  13. Return to recovery mode and select “reboot system now”.

Good job; you have successfully applied our step by step guide which means that now you know how to manually update your Sony Xperia Z1 to Android 4.4.2 KitKat OS. Do note that the MoKee AOSP custom ROM firmware is now running on your Android smartphone. Test the software and see how it performs and then return here and use the comments area from below for sharing your experience with us.

Sony Xperia Z1 Articles

  • Osama Shakeel

    cant download Decryption key needed

  • Rupesh S

    its askin for Decryption key
    :(