If you are a Sony Xperia Z Ultra user, then you will be happy to know that you can now enjoy Android 5.0 Lollipop on your Xperia Z Ultra. Androidbiits.com will help you in installing Android 5.0 Lollipop via AOSP Custom ROM on your Sony Xperia Z Ultra. Today, I will talk about AOSP ROM that is specially designed for Sony Xperia Z Ultra. I have recently posted the tutorial for installing Android 5.0 Lollipop AndroidNow HD ROM on LG G3 D855. Now I am going to write the step-by-step instructions using which you can update Sony Xperia Z Ultra to Android 5.0 Lollipop AOSP ROM. This is a pretty good news for Xperia Z Ultra owners who are bored with the old firmware.

I am expecting that you will be able to install the new AOSP ROM on your Xperia Z Ultra without experiencing any issue after reading the steps posted in Androidbiits.com. AOSP is a popular Custom ROM available for Sony Xperia Z Ultra. Dear friend you need to root Sony Xperia Z Ultra in order to install AOSP. Oh yes, CWM recovery is also needed to be installed on Xperia Z Ultra before updating it to Android 5.0 Lollipop AOSP ROM. Dear Xperia Z user, you must save your contacts and other data in a safe place before updating your Sony Xperia Z Ultra to Android 5.0 Lollipop via AOSP. Oh yes, you must install Sony Xperia Z Ultra USB driver on your PC for successful connection between your Xperia Z Ultra and computer. Otherwise, your Xperia Z Ultra will not be recognized by your personal computer.

Below are the steps using which you can install Android 5.0 Lollipop via AOSP on Sony Xperia Z Ultra. Androidbiits.com will not take any responsibility if Xperia Z Ultra got corrupted while being updated to Android 5.0 via AOSP. Xperia Z Ultra battery level must be above 72% before following these steps.

How to Install Android 5.0 Lollipop AOSP Custom ROM on Sony Xperia Z Ultra [Tutorial]

1. First, you have to download Android 5.0 Lollipop AOSP ROM for your Xperia Z Ultra.

2. Now you have to download Gapps for Xperia Z Ultra.

2. Go to the settings of your Sony Xperia Z Ultra and enable USB debugging.

3. Now you have to connect your Sony Xperia Z Ultra with your PC via USB cable.

4. After connecting your Sony Xperia Z Ultra, you need to transfer Gapps and AOSP ROM ZIP file to the SD card of your Xperia Z Ultra. Then, switch it off.

5. Remove the USB cable from your Xperia Z Ultra and then you have to put it into Recovery Mode.

6. Now you have to choose “wipe data/factory reset” option from Xperia Z Ultra main menu.

7. Now you have to choose “wipe cache partition” option on Xperia Z Ultra.

8. Now you have to choose “install zip from SD card” on your Xperia Z Ultra and then search for Gapps and AOSP ZIP file from the SD card of your Xperia Z Ultra. Then, install them.

9. Now you have to return to the main menu of your Xperia Z Ultra and choose “reboot system now” option.

Now you will need to wait until your Xperia Z Ultra restarts. You can have a cup of tea until your Xperia Z Ultra restarts. Once it is restarted, you can enjoy Android 5.0 Lollipop AOSP ROM on your Xperia Z Ultra. If you are facing any difficulty while installing AOSP, then you can share your problem with Androidbiits via the comment section. Androidbiits.com will be happy to solve your problem. [Source: XDA]