Samsung Galaxy S4 users can choose to upgrade to the Android 5.1 update via a new custom ROM. The ROM is ideal for those who do not wish to wait for the over-the-air release.
Based on CM12, you will get all the loveliness of Lollipop with CyanogenMod features on top. Here is how you can flash Android 5.1 on Galaxy S4 I9500 with Resurrection.
Remix.
÷ Resurrection Remix Android 5.1 features:
Navigation Bar
Statusbar
Brightness Slider
Enable/Disable Show Notification Count
Clock Customizations
Time & date
Battery
Battery Bar customization
Battery Icon Customization(circle/landscape/Potrait and more)
Animations
Gestures Anywhere Feature
Clock Widget
LockScreen
Lockscreen Shortcuts
Notification Drawer
Quick Settings
Backlight Timer
Home Button(For devices with HW keys Only)
Home Button Wake Up
Home Button answer call
LCD Density
Expanded Desktop Mode
All New CM Audio FX App
Heads Up Customizations
OverAll Smoothness Improvements
Quick Unlock
Optimizations to Improve Battery
ALL CM12 features
and many many more
÷ Pre-requisites :
•Backup any important data from your Samsung Galaxy S4 I9500 as a complete wipe will be required during the flashing process.
•Enable USB debugging option on your device: Settings > Development Options > USB debugging.
•Samsung Galaxy S4 I9500 must be rooted, unlocked and installed with a recovery tool like TWRP or CWM.
Your device must be charged to at least 60% of power.
Note: this tutorial is focused on Samsung Galaxy S4 i9500; kindly do not try this guide on other Android & Samsung devices.
*Disclaimer:
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÷ How to flash Android 5.1 on Galaxy S4 I9500 with Resurrection Remix ROM:
Required files: download the Android 5.1 Lollipop custom firmware for Galaxy S4 from Here and save it on your computer. Do not extract the contents. Also download Gapps.
1- Connect your Galaxy S4 to your computer using a USB cable and copy the zip file to your phone’s SD card.
2- Disconnect the USB cord and power off your Galaxy S4.
3- Boot it into recovery mode: switch the phone on while pressing and holding Volume Up + Home + Power buttons simultaneously.
4- Perform a Nandroid backup of your current OS: Backup > backup and restore on ClockworkMod recovery.
5- Wipe data task: from CWM recovery menu, select wipe data / factory reset and confirm the process.
6- From recovery menu, select install zip from sdcard followed by choose zip from sdcard. Locate the Resurrection Remix Android 5.1
Lollipop custom firmware and confirm the flashing process.
7- Return back to main recovery menu and reboot your Galaxy S4 I9500 into the new custom ROM. First boot takes a good 5 minutes so please be patient.
Best regards..