CyanogenMod 12 for Galaxy S3 GT-I9305 Lollipop

CyanogenMod 12 for Galaxy S3 GT-I9305 Lollipop

CyanogenMod 12 for Samsung Galaxy S3 GT-I9305 is brought to you by xda Recognized Developer DerTeufel1980.
CyanogenMod 12 is a custom ROM based on Android Lollipop 5.0.2.

Installing custom ROM requires a custom recovery to be installed on your device, which may VOID your warranty and may delete all your data. Before proceeding further you may consider backup your all data. You are the only person doing changes to your phone and I cannot be held responsible for the mistakes done by you. Neither the developer nor we will be held responsible for any disaster that happens to your device.


Files needed to install cyanogenmod 12 for galaxy s3:

– CyanogenMod 12 for Galaxy S3 GT-I9305 ROM download link
– Google Apps download link for Android 5.0

Installation guide of CyanogenMod 12 for Galaxy S3:


Copy the CyanogenMod ROM and GApps zip file to your SD card or internal memory (By using a USB cable or via adb push command).


Reboot your phone into recovery mode (Hole Volume UP + HOME + Power button while the phone is booting)
Or if you have a PC in hand with USB driver installed for your phone then type the following command to enter into recovery mode:

$ adb reboot recovery


Wipe data/factory reset.
This will delete all your data on your phone.
You may consider backing up your phone data or take a nandroid backup.


Select the Install Zip from sdcard option.
Select the CyanogenMod ROM zip and then followed by the GApps zip file.

The flashing may take a while.
When it will be done you can reboot your system and enjoy the Cyanogenmod 12 (Android Lollipop) for Galaxy S3 GT-I9305.

Previous [ROM] SlimLP ROM for OnePlus ONE (Device codename: Bacon) based on AOSP 5.0 Android Lollipop
Next [ROM] Resurrection REMIX ROM v5.2.3 for Google Nexus 4 (Device codename: Mako) based on CyanogenMod 12 Android Lollipop 5.0.2

About author

siba 698 posts

A B.Tech degree holder with more than 5 years of experience on Embedded Systems design domain. He has worked on Aerospace domain, NAND storage, Server storage and Wireless networking.

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  1. Ash Halcomb
    February 23, 02:25

    I find that my battery depletes rapidly when it hits the 70% mark. I’ve also come across alot of bluetooth issues. i.e streaming to my Bose SoundLink Mini. It becomes increasingly hot when using applications such as: Clash of Clans & Facebook. This isnt as regular amount of heat, it gets to the point where i have to stop and pull apart the phone to manually cool the battery and body of the phone. It also has an issue where by if i have WiFi turned on, it blocks all communication with my cellular data. I was able to counter this by simply turning it off. Though with the already known issue of GPS, this isn’t really a viable option. I absolutley love the overall feel of the ROM and i would love to have these issues fixed so i can use this phone and software as my daily driver. All the issues highlighted above are issues i did not run into when using my previous ROM which was a nightly cm11 build. Please Update and fix so i can recommend!

    Ashley Halcomb
    Sydney, Australia.

  2. I tried this for a few minutes ago and it didnt work like a charm, no keyboard and no bluetooth. And i had a problem to launch Super SU.

    /Daniel Nilsson Sweden

  3. Hi,

    Having the same issue as Daniel i.e no keyboard. Running CWM wipe data/factory reset, wipe dalvik cache and wipe cache partition. Have updated to latest version of SU and installed Gapps 5xx


  4. Andrew
    October 27, 11:49

    I need help please I have a Samsung galaxy S3 GT-I9305T can’t seem to update my S3 to lollipop update

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