One of the very first custom ROM XtraSmooth is based on Android 5.1 Lollipop and is now available for Nexus 5. The custom firmware is becoming popular for the stability it offers along with awesome performance. You will notice that your battery lasts a tad longer after flashing to this latest Android 5.1 Lollipop based custom ROM. Here are the steps to help you flash Android 5.1 on Nexus 5!

Flash Android 5.1 on Nexus 5with xTraSmooth:

Downloadand install USB drivers for LG Nexus 5in your computer.Enable USB debugging option by pressingMenu>Settings>Applications. Navigateand tap onDeveloper Optionsto ensure thatUSB Debuggingis enabled.Your Nexus 5 should be rooted.Make sure that ClockworkMod recovery is installed.Ensure that your Nexus 5carries more than 70% of charge.

How toto flash Android 5.1 on Nexus 5:

Required files: Download XtraSmooth Android 5.1custom firmware fromhereon your computer. Also, download GApps package fromhere.

Connect your LG Nexus 5to your PC using USB cable and copy the downloaded files to the SD card of your device.Disconnect your Nexus 5and power it off.Now boot it in to the CMW recovery mode: press and holdVolume Up, Homeand thePowerbuttons simultaneously. UseVolumekeys to highlight andPowerbutton to select.Data wipe operations: go towipe data/factory resetand confirm the operation. Alsowipe cache partitionand finally go forwipe dalvik cachetoclean it up too.Now, selectinstall zip from sdcardand thenchoose zip from Sdcard. Locatethe XtraSmoothAndroid 5.1 Lollipop file and confirm its installation.When the ROM installation completes successfully, repeat the above step for installing the GApps package.Once done, go back to main recovery menu and selectreboot system now.

First boot takes a little while so please don't get alarmed. Enjoy the sweetness of lollipop.