Update Xperia Z1 to Android 5.0.2 Lollipop via AOSP ROM

In the past few weeks, many Smartphones have been upgraded to Android 5.0 Lollipop version. No doubt, it’s the most awaited update for any user to get their hands-on the sweetest version of Android. However, there are still a lot of devices awaiting to arrive Android 5.0 Lollipop version officially and Unfortunately, the flagship Sony Xperia Z1 is one of them. Well, Sony reveals that the entire Xperia Z series will be getting an Android 5.0 Lollipop update, but no exact date is being specified.

Update Xperia Z1 to Android 5.0.2 Lollipop via AOSP ROM

Nevertheless, there is another way to update Xperia Z1 to Android 5.0.2 Lollipop and that is via installing Custom ROM. So, those users who can’t wait to see how Android Lollipop will look like on Xperia Z1 can get their hands-on this AOSP Custom ROM. Here is the Xperia Z1 Lollipop Xda guide on How to Update Xperia Z1 to Android 5.0.2 Lollipop via AOSP ROM.


  • Don’t forget to charge your device battery up to 70 – 80% for a flawless process.
  • Make sure that you have enabled “USB Debugging” option found under “Settings > Developer Settings”.
  • Device bootloader must be in an unlocked state.
  • Sony Xperia Z1 must be rooted and possess any Custom Recovery.
  • Take a backup of your important stuff.
  • Install “Sony Xperia Z1 USB Drivers” on your system.

Download Update Files:

Note: You need to navigate to the (Honami Z1) folder to download necessary flashing files. Refer to the below image for more clarification.

Sony Xperia Z1 Android 5.0.2 Lollipop Update Files


Xperia Z1 Android 5.0.2 Lollipop AOSP ROM Screenshot

How to Update Xperia Z1 to Android 5.0.2 Lollipop via AOSP ROM

Step 1: First of all, extract the “Fastboot_Files.zip” to your “C:\ Drive” (Ex: C:\Fastboot Files).

Step 2: Copy the downloaded “boot.img” and “system.img” files to the extracted folder.

Step 3: Connect your Xperia Z1 with your system with the help of official USB data cable. (Note: Make sure your system must possess all the needed drivers to detect your device.)

Step 4: Now, navigate to “Fastboot Files” folder and open the command prompt there. To do so:

  • Press and hold “Shift Key” and press “Mouse Right-Click”, sub-menu will opens-up and from there, choose the option “Open command window here“.

Step 5: Type the following command in the command prompt to make sure that your Xperia Z1 is successfully detected.

  • adb devices

Once you type the above command, you’ll get a pop-up on your smartphone saying “The Computer’s RSA Key Fingerprint is?” and you need accept it (Give “OK”).

Step 6: Further, you need to boot your Xperia Z1 into bootloader mode and for that you need to type the following command.

  • adb reboot bootloader

Step 7: Once your device is successfully entered into the bootloader mode, flash the “boot.img” and “system.img” files to update Xperia Z1 to Android 5.0.2 Lollipop.

  • fastboot flash boot boot.img
  • fastboot flash system system.img
  • adb reboot recovery

Step 8: Once you are into recovery mode, do “wipe data/factory reset“, “wipe cache partition”, and “Wipe Dalvik Cache”.

Step 9: Then, Select “install zip from SD card” option > “choose zip from SD card” > select “Gapps_Lollipop.zip” package > select “OK”.

Step 10: Finally, Select “++++Go Back++++” and then choose “reboot system” to reboot your Xperia Z1. (Note: Your device will take 5 – 10 minutes to boot up for the first time.)

Step 11: That’s it! You are ready to use Android 5.0.2 Lollipop on your Sony Xperia Z1.

Congratulations! You have successfully updated your Sony Xperia Z1 to Android 5.0.2 Lollipop version. Enjoy all new UI with materialistic effect and features. For any queries, you can use the below comments box to share with us and we will surely try to solve it out as soon as possible. Enjoy 😀 [Credit: Xda]