If you are looking for battery optimizing custom ROM for your Sony Xperia Z3, you might like the latest Moonbreakers firmware. Based onthe latest official firmware 23.4.A.0.546 Android 5.1.1 Lollipop, Moonbreakers Android 5.1.1 is heavily debloated and deodexed. This custom ROM uses stock kernel and battery tweaks so expect a very stable experience along with a better battery life on your Sony Xperia Z3. Follow this guide to flash Moonbreakers Android 5.1.1 for Sony Xperia Z3.

Based on official Sony .546 Lollipop 5.1.1 FirmwareRootedStock KernelImproved Boot TimeDebloatedDeodexedBetter RAM ManagementPerformance TweaksBattery TweaksAdBlockerFull Screen Caller Mod With Round Call End Button

- Tips to Fix Android 5.1.1 Battery Drain Issues

Prerequisites to updateXperia Z3 to Android 5.1.1 ROM:

Backup any important datafrom your Sony Xperia Z3 as a complete wipe will be required during the flashing process.Make sure ADB and Fastboot is configured on your PC.Sony Xperia Z3 must berooted with unlocked bootloader and installed with a recovery tool.Your device must be charged to at least 60% of power.

How to flash Moonbreakers Android 5.1.1 on SonyXperia Z3:

Required files: downloadMoonbreakersAndroid 5.1.1 Lollipop custom firmware for Xperia Z3 fromhereand save it on your computer. Extract boot.imgfile separately.

Connect your Xperia Z3 to your computer using a USB cable and copy the zip file to your phone memory's root folder.Copy the boot.imgfile toandroid-sdk-windows\platform-tools directory.Switch off your Xperia Z3 and enter Bootloader mode: press and hold theVolume Upbutton while connecting the phone with USB cable. Phone LED will turn blue indicating the Bootloader mode.Once in the Fastboot mode, on your PC navigate toandroid-sdk-windows\platform-toolsdirectory and open Command Prompt with Shift + Right-click > Open Command Prompt.Runthe following commands:fastboot flash boot boot.imgpress Enter.fastboot rebootand press Enter.Enter in the Recovery Mode: switch onthe phone while pressing the Volume Upbutton a few times.Wipe data task: from CWM recovery menu, selectwipe data / factory resetand confirm the process.Also clean cache fromwipecache partition.From recovery menu, selectinstall zip from sdcardfollowed bychoose zip from sdcard.Locate the MoonbreakersAndroid 5.1.1 Lollipopcustom firmware and confirm the flashing process.Once done, return back to main recovery menu and reboot yourinto the new custom ROM.First boot takes a good 5 minutes so please be patient.

Enjoy the latest version oflollipop on your Xperia Z3. For more details, visit the XDA thread.

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