Update Galaxy S4 i9505 to Android 5.1 CM12.1 - How to

Latest Android 5.1 can at present be flashed on Samsung Galaxy S4 model number I9505 using the latest version of the CyanogenMod. CM12.ane Android 5.i custom firmware brings new features while fixing before bugs and bug. Follow these steps to update Galaxy S4 I9505 to Android 5.one CM12.1.

-Also, read: S6 Edge Craze Pushes Samsung to Produce Massive Quantities of Galaxy S7 Display

Prerequisites to update Galaxy S4 i9505 to Android 5.1 CM12.1:

Backup any important data from your Samsung Galaxy S4 I9505 as a complete wipe will be required during the flashing process.
Enable USB debugging option on your device:Settings >DevelopmentOptions >USB debugging.
Samsung Galaxy S4 I9505 must exist rooted, unlocked and installed with a recovery tool like TWRP or CWM.
Your device must exist charged to at to the lowest degree lx% of power.

Note:this tutorial is focused on Samsung Milky way S4 LTE i9505; kindly do not attempt this guide on other Android & Samsung devices.

How to update Galaxy S4 i9505 to Android 5.i Lollipop:

Required files: download the CM12.one Android 5.ane Lollipop custom firmware for Galaxy S4 from here and salve information technology on your estimator. Do non extract the contents. Also download Google Apps Package.

Connect your Galaxy S4 to your calculator using a USB cable and re-create the zip file to your phone's SD card.
Disconnect the USB cord and power off your Galaxy S4.
Kick it into recovery manner: switch the telephone on while pressing and holding Volume Up + Home + Power buttons simultaneously.
Perform a Nandroid backup of your current OS:Fill-in>backup and restoreon ClockworkMod recovery.
Wipe data task: from CWM recovery menu, selectwipe data / mill resetand confirm the procedure.
From recovery menu, selectinstall zip from sdcardfollowed pastchoose nix from sdcard.Locate the CM12.1 Android 5.1 Lollipop custom firmware and confirm the flashing process.
Return back to main recovery menu and reboot your Galaxy S4 I9505 into the new custom ROM. First boot takes a good 5 minutes so delight be patient.