Flash optimized software to improve performance. Rooting: Easily install Magisk for system-level control.
Put your J2 Core into : Power off, then hold Volume Down + Power + Home (or Volume Down + Volume Up while plugging in USB, depending on the specific regional variant). twrp samsung j2 core
The bootloader unlocking process will factory reset your phone. Charge Your Battery: Ensure you have at least 50% power. Flash optimized software to improve performance