Sony has managed to disappoint many with the latest release of Xperia Z4. The design is pretty much the same as the Sony Xperia Z2 so many users would perhaps be holding on to that device. Which essentially means we need to keep updating you with latest stable ROMs to flash on your Xperia Z2. Here is the popular stable and fast Resurrection Remix custom firmware; follow these guides to update Xperia Z2 to Android 5.1 based Resurrection Remix ROM.

Resurrection RemixAndroid 5.1 Lollipop features:

Navigation BarEnable/Disable NavbarNavbar Ring SwitchNavbar Ring TargetsNavbar Button CustomizationNavbar Dimensions (Potrait & Landscape)

-Also, read: Galaxy S6 edge Tips to Help You Take the Best Out of Your Curved Phone

Prerequisites to update Xperia Z2 to Android 5.1 Resurrection Remix:

Backup any important datafrom your Sony Xperia Z2 as a complete wipe will be required during the flashing process.Make sure ADB and Fastboot is configured on your PC.Sony Xperia Z2must berooted with unlocked bootloader and installed with a recovery tool.Your device must be charged to at least 60% of power.

How to update Xperia Z2 to Android 5.1:

Required files: download Resurrection RemixAndroid 5.1 Lollipop custom firmware for Xperia Z2 fromhereand save it on your computer. Extract boot.imgfile.Also download Google Apps Package.

Connect your Xperia Z2to your computer using a USB cable and copy the zip file and GApps to your phone memory's root folder.Copy the boot.imgfile toandroid-sdk-windows\platform-tools directory.Switch off your Xperia Z2 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.Typethe following command and press Enter:fastboot flash boot boot.imgType the command and press Enter:fastboot rebootEnter 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 Resurrection RemixAndroid 5.1 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 lollipop on your iconic Xperia Z2.