How to Install Android 5.1 Lollipop with AOSP v 5.0 Custom ROM on Sony Xperia Z3 Sony gives access to Android 5.1 Lollipop update for the Xperia Z3 users. Although users have to wait a little more time to grab the update on a global basis. The server has been working on it now. It’s the recognized XDA developer Krabappel2548 released this new update. It works perfectly on the latest Beta V version subjected by AOSAP 5.1.0 ROM. You can follow the below steps carefully to gain access over the same on your Sony Xperia Z3. Pre-requisites: The following guidelines are made for the Xperia Z3 only. Make sure that your device has at least 80% battery backup while doing this process. Enable a proper custom recovery tool like CWM or TWRP on your device. Install required USB drivers on your PC and USB Debugging Mode on your Smartphone. Steps to Update Sony Xperia Z3 to Android 5.1 Lollipop with AOSP v 5.0 Custom ROM: Step 1: Download the Android 5.1 Lollipop AOSP Beta ROM on the PC. Step 2: Download the Gapps files, too. Step 3: Make a connection in between your device and the PC with the help of a USB cord. Move all the above downloaded files to the internal storage. Keep it transferred to the rooted folder and you should give importance to do so. Step 4: You can disconnect your device now. Move to the Fastboot folder. Step 5: Switch off your device. Ensure that you’ve done it in the download mode by pressing and holding the Volume button. Step 6: Flash the files that are available inside the fastboot folder. Step 7: Go back to the recovery mode. Choose ‘wipe data factory reset’. Now, select the ‘advanced’ and wipe data, dalvik cache, and other caches. Now, select ‘wipe data factory reset’ by going back to the recovery mode. Click on ‘advanced’, ‘wipe data’, and ‘dalvik cache’. Step 8: Select ‘install zip from SD card’ option. Follow the above steps for the installation of Gapps files as well. You can flash your downloaded files now. Step 9: Reboot the device by choosing ‘reboot system now’. Now, you can start enjoying the new features of Android 5.1 Lollipop AOSP ROM available on your Sony Xperia Z3.