Upgrade Samsung Galaxy S3 Mini to Android 5.0.2 Lollipop with CyanogenMod 12 ROM (Unofficial)

Samsung Galaxy S3 mini will not get the Android 5.0 Lollipop update officially, however you can enjoy the latest Android OS on it is by installing AOSP based ROMs like CyanogenMod. Novafusion custom ROM developer has released a stable Android 5.0.2 Lollipop ROM for Galaxy S3 mini. The ROM is based on the newest CyanogenMod 12.

galaxy-s3-mini-cm12-rom

The unofficial CyanogenMod 12 custom ROM (Android 5.0.2 Lollipop) by Novafusion is compatible with all Galaxy S3 Mini variants such as i8190, i8190L and i8190N. The ROM is almost stable and only issue is video taken by camera is green. Interested users may read on to know how to install this ROM on Galaxy S3 mini.

For installing CyanogenMod 12 unofficial ROM your Galaxy S3 mini meets certain requirements. It must be rooted and newest version of custom recoveries like TWRP or CWM installed.

Step by step guide to upgrade Galaxy S3 Mini to Android 5.0.2 Lollipop CM12 ROM

IMPORTANT: Back up everything (contacts, call logs, SMS, images, video, audio and other data) before installing the custom ROM. Also, DO NOT forget to make Nandroid back up from recovery.

Disclaimer: Please follow this guide at your own risk. Though we are putting our level best to provide this tutorial at its maximum perfection and accuracy, we can’t take responsibility for anything that goes wrong. This guide is intended for technically talented users only.

1. Download CM12.0 for S3 Mini [HERE] or [HERE] and Google Apps Package [HERE] and copy both the zip files to the device’s SD card storage.

Note: Download recovery version of the ROM

2. Turn off Galaxy S3 Mini and reboot it into recovery mode. To do so, press and hold Volume Up, Home, and Power button few seconds.

Note: This guide is based on CWM recovery

3. From recovery, perform a factory reset (choose “wipe data/factory reset”) and wipe cache partition (choose “Wipe Cache Partition”)

4. Now, go back to the main recovery menu and choose “Mounts and Storage” -> Format / Data -> tap on Yes. Once done, go to “Advanced” menu then choose “Wipe dalvik cache” and tap on Yes to confirm.

5. Now, select “Install Zip from SD card” option, and then tap on “Choose ZIP from from SD card”, browse the CM12.0 ROM (you have copied earlier) and tap “Yes” to begin installation.

6. Do step 5 for installing Google Apps package.

7. Once everything are done, go back to main recovery menu and choose “Reboot system now” option. It may take around 5 minutes for the device to reboot.

Troubleshooting

1. If your Galaxy S3 mini gets into the boot loop sequence (stuck in the welcome screen), boot your phone into custom recovery, perform ‘wipe cache partition’ and from ‘Advanced’ option perform ‘wipe dalvik cache’.

2. If above procedure isn’t helped you, remove battery from your phone and then re-insert it and follow the above installation instructions again.

Enjoy Android 5.0.2 Lollipop on Galaxy S3 mini.(source)

Kannan is a computer and Android enthusiast, a blogger by passion and a tech freak. His always ready-to-help attitude, knowledge and hard work is what drives him.

7 Comments

  1. Piggeh

    May 7, 2015 at 7:15 am

    Hi, I downloaded the latest version of the rom, and tried to install it with this guide, but I got a message saying Warning: no file_contextsdetected at ext4 filesystem dev block 22. I then got a message saying it detected an ext4 filesystem at the same location. After that, the recovery froze and I had to pop my battery out and restore my backup. I followed the guide exactly. (I may have cleared the cache before factory resetting the phone. Not sure.) This has happened every time I try to flash the zip. Is there any way I can fix this?

    • Kannan

      May 7, 2015 at 2:53 pm

      Ensure your S3 is i8190, i8190L or i8190N. I suggest you to download the rom (recovery version) and flash it again. Odin version of the same ROM is also available. Download and try to flash via Odin.

  2. yoga

    May 1, 2015 at 3:39 am

    My phone is bootloop,when i install cm 12 is aborted ‘no file context detected’ can you help me?

  3. gegeek

    Apr 25, 2015 at 4:13 pm

    it’s cool thanks

    • rio

      Jul 15, 2015 at 1:33 pm

      whether this rom stable ?

      • Kannan

        Jul 15, 2015 at 9:35 pm

        The ROM isn’t fully stable. I had mentioned it in the guide.

  4. shaffaf

    Apr 11, 2015 at 3:38 pm

    it shows 217mb before downloading cm12. but after downloading its only 113mb. is there any problem if i install that file??

Leave a Reply

Your email address will not be published. Required fields are marked *