Within TWRP, select > Advanced Wipe > check Cache and Dalvik > swipe across the bottom interface to confirm.
Method A (Simpler): Download a pre-patched boot.tar configuration that perfectly matches your phone's Android build and Binary version (e.g., U1/U2/U3/U4).
Samsung Galaxy J2 Core (SM-J260F) can be rooted by unlocking the bootloader and flashing a Magisk-patched boot file TWRP recovery tool. It is critical to use files that match your specific Binary Version (e.g., U1, U3, U7), which can be checked in recovery mode. Prerequisites & Preparation Check Binary Version: j260f root file
: This is the first essential step; without it, you cannot flash custom root files. : Download and unpack the Odin flashing tool on your PC. Root Files : You will need the or a pre-patched file specific to your SM-J260F version. General Rooting Steps Enable Developer Options
Transfer the boot.img file to your phone's internal storage. Install and open the . Tap Install > Select and Patch a File . Within TWRP, select > Advanced Wipe > check
Once you have your patched root file ready, use the Odin flashing tool to apply it. Step 1: Put Your Phone into Download Mode Turn off your Samsung Galaxy J2 Core completely.
Defective computer USB ports, low-quality cables, or corrupted device drivers. It is critical to use files that match
If your J260F gets caught in a continuous boot cycle, force-reboot the device into recovery mode by holding Power + Volume Up . Choose Wipe Data / Factory Reset using the hardware keys to clear the problematic cache conflicts and reboot.
Download and install official Samsung USB drivers on your Windows PC.
Back up all critical personal data (photos, contacts, apps) since unlocking the bootloader triggers a factory reset.
Many Android development forums host pre-made root_boot.tar files for the SM-J260F. If you choose this route, ensure the source explicitly states compatibility with your specific binary security version (e.g., U1, U2, U3, U4, U5, U7). Flashing the wrong binary version will result in a boot loop. Step-by-Step Flashing Guide Using Odin