Root & ROM

Install Android 5.1.1 Lollipop CM12.1 on Galaxy S Advance I9070

Install Android 5.1.1 Lollipop CM12.1 on Galaxy S Advance I9070. Thanks to hastalafiesta, a senior member from xda for taking many efforts in developing this beautiful custom ROM. This Cyanogenmod 12.1 ROM is based on the latest Android 5.1.1 Lollipop OS. Galaxy S Advance was released back in 2012 with some decent specs including Dual-core 1 GHz Cortex-A9 processor, 768 MB RAM, 5 megapixel camera, 1.3 megapixel front camera, 1500 mAh battery, Super AMOLED capacitive touchscreen, Android 2.3.6 Gingerbread OS which was upgradable to Android 4.1.2 Jelly Bean and much more.

Install Android 5.1.1 Lollipop CM12.1 on Galaxy S Advance I9070 screenshot

But as compared to smartphones in today’s world, these features have no value in the market. The smartphones today have some devastating processors with amazing features and run on the latest Android versions. Unfortunately Galaxy S Advance smartphone will never get any official update after Android 4.1.2 JB. The only way to experience those newly launch OS is by flashing unofficial custom ROMs. In this guide we’ll discuss some easy steps in flashing Android 5.1.1 Lollipop CM12.1 on Galaxy S Advance I9070.

This custom ROM is stable, fast and usable. It has only one issue with the video recording. But don’t worry as with release of new updates that bug will get easily cleared up. As you can see from screenshots, this ROM is so beautifully customized that you’ll enjoy and experience the combined features from Android 5.1.1 Lollipop OS and Cyanogenmod 12.1 on your Galaxy S Advance. Those who wish to experience the Android 5.1.1 Lollipop OS on their Galaxy S Advance can follow our step-by-step guide given below.


Install Android 5.1.1 Lollipop CM12.1 on Galaxy S Advance I9070 screenshot
Install Android 5.1.1 Lollipop CM12.1 on Galaxy S Advance I9070 screenshot
Install Android 5.1.1 Lollipop CM12.1 on Galaxy S Advance I9070 screenshot


Try this at your own risk. Neither I nor do the developers of this ROM will be held responsible if any damage happens to your smartphone by following this guide. Although I assure you no such thing will happen if you read, follow and implement every step correctly.


Remember to implement these steps only on Samsung Galaxy S Advance bearing model number GT-I9070. Do not flash this CM 12.1 ROM on any other device or variant. If tried your  device may turn into semi bricked / non-functioning state.


  • Make sure you’ve charged your Galaxy S Advance at least up to 60%.
  • Back up all your data including contacts, messages, call logs, APN settings, memos etc.
  • A folder called EFS present in your phones system directory contains all your phones specific information such as the IMEI, wireless devices MAC addresses, product code, and much more. Hence, backup EFS before moving further.
  • Root Samsung Galaxy S Advance before going ahead.
  • Make sure you have installed mobile USB drivers on your PC.
  • Root and install CWM recovery on your phone.


Android 5.1.1 Lollipop CM12.1

Google Apps

Steps to install Android 5.1.1 Lollipop on Galaxy S Advance GT-I9070:

  • Download both the zip package files in a folder on your PC. Do not extract them.
  • Using USB data cable connect your Galaxy S Advance to PC, enable mass storage mode and transfer both the downloaded files on your phones SD card.
  • Disconnect your device from PC & switch it off completely. Now you need to enter your phone into CWM recovery mode. Recovery mode can be entered by pressing & holding Volume up + Home button (middle button) + Power button together till you land into recovery.
  • Touch won’t work in recovery mode. So use Volume keys for navigating up and down and use Home button for selection.
  • Before flashing any custom ROM it is necessary to take Nandroid backup of your current ROM.
  • Then you need to wipe the data/cache present on your device. For that navigate to the ‘wipe data/factory reset’ option and on the next screen select ‘wipe cache partition’ option. This will clear all the data & caches from your phones internal memory respectively.
  • Then navigate to the Advanced option located on the recovery mode itself. Select Reboot Recovery  option on the next page.
  • Wait until you boot again into recovery.
  • Let’s flash the Android 5.1.1 Lollipop based CM 12.1 ROM now.
  • Go to the ‘install zip from SD card’ option using Volume keys & select it using Home button. Then on the next screen select ‘choose zip from SD card’ option. As soon as you select this option, it will show all the data present on your external SD card. Just search for the CM 12.1 ROM which you’ve copied earlier and select it. On the next page select ‘Yes’ option to start the actual Android 5.1.1 Lollipop flashing process. It will take few minutes to complete successfully.
  • After completing the process again select ‘wipe data/factory reset’ option and ‘wipe cache partition’ option to clear all your phones data & cache. This step is essential to solve the boot loop issue.
  • Similarly, flash the Google Apps (containing Google Play Store, Maps, Gmail, etc.) as you’ve flashed this Cyanogenmod 12.1 custom ROM. Just remember not to wipe data/cache after flashing it.
  • Everything completes here. Just restart your Galaxy S Advance by selecting ‘reboot system now’ option from the recovery mode. Note that this first boot will take more time to start than usual. But don’t worry after a couple of boots it’ll be normal.
  • If you want to restore back your previous Rom, then you can do that by going back to the recovery mode and selecting ‘Backup and RestoreRestore’ option.


Finally! You’ve successfully installed the latest Cyanogenmod 12.1 custom ROM on your Samsung Galaxy S Advance GT-I9070 smartphone. You can verify the same from Menu→Settings→About Phone. Enjoy Android L full featured ROM on your smartphone. This is not an official firmware but an unofficial custom ROM. You may share your experience as well as any problem, query through the comments.

About the author

Abhijeet Bharekar

An Engineer by Profession and Blogger by Passion.


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