How to update Galaxy S3 I9300 to Android 5.1.1 Lollipop with BlissPop ROM

BlissPop ROM by Team Bliss is a highly customised ROM, based on CyanogenMod 12.1 source with additional features from various custom builds. Along with the latest Android Lollipop version 5.1.1, the BlissPop ROM bundles innumerous customisation options and tweaks.

CM12 Theme Engine

Status Bar

Clock & Date options
Battery options
Battery bar options
SuperUser indicator
Bluetooth indicator
Brightness control
Mobile & Wifi Icon options
Notification & System icon options
Network traffic monitor
Breathing notifications
Bliss Logo option
Notification count

Navigation & Button options

Set navigation ring targets
Backlight brightness & timeout
Overflow button settings
Navigation bar toggle
Set navigation buttons, layout & dimension
Double tap to sleep
Power button end call option
Home button options
Back button wake up option
Menu button options
Search button options
Left-Handed mode

Recents options

Memory bar
Clear all button tweaks
Clear all tasks
Clear all Recents location
Option to show Google search bar in recents Menu
OmniSwitch (Option to replace recents menu with Omniswitch)

Notification drawer

Status bar header (Weather)
Tile options
Flashlight option
Custom color tile options (Set Background, Icons & Text)
Quick Setting options
Quick & smart Pulldown
Brightness slider toggle
Vibrate, detailed Wifi View & advanced location options
SlimActions tile
Auto close panel
Force expanded notifications

Lockscreen options

Long press lock icon to sleep
Shortcuts
Bottom corner targets
Weather options
Customise text & icon colors
Clock widget settings
Music visualiser options
Power button lock options
Lock method options

Power menu options

Power off
Reboot
One click reboot
Screenshot (with delay option)
Screen record
Profile switcher
Airplane mode
User switcher
Settings shortcut
Device lockdown
Sound panel

Gesture anywhere

Location options
Trigger regions

Animations

IME animations
Toast animations
Listview animations
System animations
Scrolling cache
Scrolling modifiers

App Circle Bar

Included Apps
Trigger width, position and height

Sound options

Link ringtone & notification toggle
Media, alarm, ring & notification sound options
Volume steps
Volume panel timeout
Interruptions
Launch music apps
Dial Pad tones
Screen locking sound
Touch sounds
Charging sounds
Camera shutter & screenshot sounds
Safe headset volume
Less frequent notifications
Media control
Vibration options

Display & Light options

Smart cover
Adaptive brightness
LiveDisplay
Rotation
Double tap to sleep
Sleep time
Wake on plug
Cast screen
Expanded desktop
Daydream
Font size
DPI
Battery light
Notification light with per app settings

Notification manager

Device lock options
Block app notifications
Disable persistent info
Priority app notifications

AudioFX equalizer

SuperSU
BlissPop Wallpapers -Home Launcher Option
CM camera
User profiles
System profiles
Location options
Security options
Privacy options
Accounts & sync
Language & input
Backup & reset
Date & time
Accessibility
Printing
Developer options
ROM & Hardware information
Changelog
Bliss OTA Updates

An official release of BlissPop ROM, considered to be a stable custom version, is now available for the international Galaxy S3 model, I9300. If you wish to experience all the customisations of BlissPop ROM with Android 5.1.1 on Galaxy S3, check out our installation guide below.

Points to remember

Before following the installation guide, create backup of all important data of the phone using custom recovery.

Enable USB Debugging on the phone to connect it with the computer and use Android SDK with it. [Navigate to Settings>> About phone. Tap on Build Number several times until a message appears saying 'You are now a Developer'. Now enable USB Debugging Mode by navigating to Settings>> Developer Options.]

The Galaxy S3 should have above 80% battery charge to avoid power off during the process which could damage the device.

The phone should be rooted with the latest recovery system installed on it. Also, it should have an unlocked bootloader.

As the BlissPop ROM is in development stage, bugs are highly likely.

The BlissPop ROM works with Galaxy S3 I9300. Flashing this on any incorrect variant might brick the device. Therefore, verify the model number of the device.

After flashing the ROM if the device gets stuck on booting animation or experience boot loop then perform wipe cache partition and wipe dalvik cache for a few times before rebooting the device.

Once the ROM is installed, users are advised to give 10 minutes to the ROM after the device boots up for the first time for better user experience.

Download files

BlissPop ROM

Gapps

How to install Android 5.1.1 Lollipop on Galaxy S3 I9300 with BlissPop ROM

Step-1: Without extracting, copy the downloaded file your phone's internal storage and remember the location. Note that the files should be in the SD card root, not inside any folder

Step-2: Download TWRP recovery on your S3

Step-3: Boot the phone into recovery mode. Switch off the phone. Then press Power + Home + Volume Up buttons together until the TWRP logo appears on the screen

Step-4: In the recovery mode, create a backup of the current ROM. Go to the recovery menu and select Backup and do a swipe on the Swipe to Back Up option on the bottom of the screen

Step-5: Once the process is completed, perform a full factory wipe, and wipe/system and dalvik cache

Step-6: Return to the main recovery menu and select Install then head over to the location where you have saved the ROM, select it and click Swipe to Confirm Flash option. Wait until the installation is completed

Step-7: Flash Gapps file, following the similar process how you install the CM12.1 ROM

Step-8: When Gapps file is installed, navigate to the TWRP main recovery menu and select Reboot>> System

To learn more about the BlissPop ROM, head over to the development thread over XDA.