If you successfully installed TWRP and want root access:

  • Root (Optional): If you want root, flash Magisk.zip now using the same method.

  • Reboot System: Go to Reboot > System.

    • First boot after TWRP takes 5-8 minutes. Be patient.

    Before diving into the flashing process, let's explore why you should risk voiding your warranty (if any remains) to install a custom recovery.

    Unlike flagship Samsung devices, the J2 Core has limited developer support.

  • File Types: Installation typically involves the standard .tar or .tar.md5 format for Odin flashing, or .img format for DD flashing (via root).

    • | User Type | Recommendation | |-----------|----------------| | Beginner | ⚠️ Not recommended — flashing method (SP Flash Tool) is risky without experience. | | Enthusiast / Tinkerer | ✅ Good — once installed, TWRP works reliably for custom ROMs and backups. | | Root seeker | ✅ Yes — easiest way to flash Magisk. |

    TWRP (Team Win Recovery Project) is a custom recovery that replaces the factory recovery partition. Key features:

    For J2 Core, TWRP is required to flash any custom ROM or to root via Magisk.