Since Samsung J2 Core does not have an official TWRP, enthusiasts have ported it. The builds for the j2y18lte or j2xlte codename are generally regarded as the most stable.
: Preferred for SM-J260 variants; supports Material Design interface and touchscreen functionality.
Go to the tab on the left side of Odin. Uncheck Auto Reboot . This is critical; if the phone reboots normally, the stock system will overwrite TWRP immediately.
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The Samsung Galaxy J2 Core (SM-J260G) is an entry-level Android Go device. Installing a custom recovery like Team Win Recovery Project (TWRP) allows users to flash custom ROMs, create full system backups (Nandroid), and gain root access. However, due to hardware limitations and Samsung’s proprietary bootloader restrictions, the process requires careful execution. This paper outlines the best-known methods, risks, and verified TWRP builds for the J2 Core.
: Install these on your Windows PC so it recognizes your phone. Unlock the Bootloader Power off the phone. Hold Volume Up + Volume Down while connecting it to the PC via USB. When the warning screen appears, long-press to enter the bootloader unlock menu and confirm. Boot into Download Mode Turn off the phone. Press and hold Power + Volume Down until the warning screen appears, then press to enter Download Mode. Flash TWRP using Odin