For installing this Rom you must have TWRP Recovery installed on your phone. If you have not installed TWRP Recovery yet then follow this guide. How to Install TWRP Recovery on Galaxy Core 2.
How to Install Lineage OS 15.1 LG Optimus L90 Custom Rom
- Download the ROM zip and other required files from below and save it on your device.
- Now Boot your device into Recovery mode.
- Do a Wipe>Wipe cache, Dalvik cache and data.
- Now, Go to Install and locate the ROM zip file select to Install the ROM file.
- After the process completes, Flash the 1SIM-build.prop-MIUI5, Sandroid kernel, external fix zip file
- Finally, wipe cache & Dalvik cache again and Reboot your device.
The first-time Reboot will take 5-10 minutes to boot, don’t interrupt the process
Want to Root this device ? Follow this guide How to Root Galaxy Core 2 SM-G355H Without PC