The Top dog amongst the budget oriented L-series which was aimed to deliver some state of the art linen to the budgeted user, the LG Optimus L9 is amongst one of the most under rated phones amongst the ones launched back in 2012 and now finally we have this first CM9 build ready to be flashed onto your devices. Although it might be a bit too late for CM9 ICS to land on a phone, but as it goes, it is better late than never!
CM9 or Cyanogenmod 9 is a set of off-market firmware based upon the revolutionary version 4.0 update of the Android Operating System. Cyanogenmod ROMs are known for their super stability on top of top notch performance which gets accredited well within the stock Android user interface. Being the best in the business, the cyanogenmod team not only develops ROMs that are high on performance, they also back the real feel of the OS by keeping it as close to the stock interface as possible.
NOTE: Please make sure to have V10A Firmware installed on your device before you proceed or you’ll rather end bricking your phone up if your proceed with any other firmware versions![box_light]Before you proceed with the installation, we recommend you to backup all data on your phone. To make backups easily, you can read our complete backup guide. If you do not have device drivers installed, you can download them here. We are not responsible for any damage your device might face with this guide – the chances in this case are very less though.[/box_light]
How to Install CM9 ICS ROM on LG Optimus L9
Start by downloading the flashable file from here and meanwhile, you can connect your Phone to the Computer via USB Cable so as to copy the downloaded flashable zip file to your internal sdcard which is the /sdcard/ folder. Now, disconnect your device from the PC, turn it off and boot it into the Recovery mode. Before you proceed, please check whether you have made a nandroid backup in the recovery mode so that you can revert back to your previous ROM if you wish to. Now wipe all previous data/Do a factory reset including dalvik cache in order to avoid “Low memory” issues and then select the option to apply an update zip, and select the zip file you copied to the internal sd card and flash the zip file you downloaded above. Now flash the Gapps file in a similar fashion. Done with that, go back and select “Reboot system now”.
If you got through all of that safely enough and your phone booted up successfully, you can now taste Android 4.0 in the cyanogenmod fashion on your LG Optimus L9. If you faced any problems through the process, you can start afresh by wiping all the data and proceeding via first line of the tutorial.
For further on this, you can head over to the original thread and also support the developer’s community by reporting bugs. For any queries/suggestions, you can have a talk with us in the comments section or on our facebook page too!