You must have a custom recovery like TWRP (Team Win Recovery Project) installed to flash any custom ROM.
While highly experimental for the SM-J110H due to its Spreadtrum chipset, there have been ongoing efforts on GitHub as recently as 2024 to refine the kernel and device trees for better stability. Prerequisites for Flashing smj110h custom rom updated
As of early 2026, the most stable and "updated" options for the SM-J110H typically involve lightweight builds of older Android versions to match the device's 512MB to 1GB of RAM. You must have a custom recovery like TWRP
by holding the Power + Home + Volume Up buttons simultaneously. by holding the Power + Home + Volume
Navigate to Wipe > Advanced Wipe and select Dalvik Cache, System, Data, and Cache.
Repeat the install process for the GApps package before rebooting.
the desired ROM .zip file and compatible GApps (Google Apps) for the specific Android version.