Custom Rom ((better)): Sm-j110h
Download your desired ROM (e.g., LineageOS 14.1) and the corresponding ARM GApps (Google Apps) package (Android 7.1) for your ROM.
Before you start, you need the following: Sm-j110h Custom Rom
Assuming you have an unlocked bootloader and TWRP installed, here is the standard process for installing a custom ROM like CyanogenMod 11. Download your desired ROM (e
Because the SM-J110H is an older, niche device, "official" builds of popular ROMs like LineageOS are rarely available. You will likely find "unofficial" ports on community forums. Download your desired ROM (e.g.