In Odin, click on AP and select the .tar file you downloaded.
The Samsung Galaxy J2 Core is a legacy device. Samsung stopped security updates for it in 2020. Using the stock OS today is a security risk. TWRP allows you to install modern, patched ROMs.
: Power off, hold Volume Up + Volume Down , and connect to a PC via USB. Long-press Volume Up when the warning appears to enter the bootloader unlock menu.
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This is mandatory. Go to Settings > Developer Options > Enable OEM Unlocking . Backup Data: TWRP installation might wipe your data. Charge Your Device: Ensure at least 60% battery. Download Tools: Odin Flash Tool (latest version) on PC. Samsung USB Drivers .
Even with the "best" TWRP, you may face issues. Here is the fix guide:
, you flash the TWRP recovery image. A quick key combo (Volume Up + Power) replaces the blue "Downloading" screen with the iconic grey and blue TWRP menu. The Freedom : Once inside TWRP, the real magic happens. You can now: Full Backups twrp samsung j2 core best
In the same menu, toggle on OEM Unlocking . This is mandatory for modifying the recovery partition.
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Step-by-step
Modifying system partitions carries inherent risks. Complete these preparation steps to prevent permanent damage to your phone.
Create a full "Nandroid" backup of your system, which allows you to restore your phone completely if a mod goes wrong. Troubleshooting: Common Issues