To install TWRP on a Samsung Galaxy J2 Core (SM-J260), you must first unlock the bootloader before flashing the recovery image using Odin on a PC Prerequisites Backup Data : This process wipes all user data Samsung USB Drivers : Install them on your PC so it recognizes your phone. : Download the latest version of (v3.13.1 or newer recommended). TWRP Image : Download the specific file for the J2 Core (j2corelte) Telegram Messenger Step 1: Unlock the Bootloader Enable Developer Options Settings > System > About phone Build number seven times until you see "You are now a developer". Toggle OEM Unlock Settings > System > Developer options and switch on OEM unlocking USB debugging Enter Unlock Mode : Turn off the device. Hold Volume Up + Volume Down
simultaneously and connect it to your PC via USB. When the warning screen appears, long-press to enter the bootloader unlock menu and confirm. Step 2: Flash TWRP using Odin Enter Download Mode : Power off the phone. Press and hold Volume Down + Power + Home twrp samsung j2 core
(or Volume Down + Power if no Home button) until the warning screen appears, then press to continue. Configure Odin Open Odin as Administrator on your PC. Connect your phone. The box should turn blue/yellow. button and select your TWRP : In the "Options" tab, uncheck Auto Reboot To install TWRP on a Samsung Galaxy J2
. This prevents the system from overwriting TWRP with the stock recovery upon restart. . Wait for the "PASS" message. Step 3: Boot into TWRP Samsung Galaxy J2 Core (2018) – Telegram Mitigation: Flashing a rooted kernel (boot
Worried about bricking your device? TWRP can back up every partition (Boot, System, Data, EFS) to your microSD card. You can restore this backup in 10 minutes if a custom mod fails.
Samsung devices utilize aVerified Boot chain. Even if OEM Unlock is enabled, if the device boots normally into Android OS after flashing TWRP, the system detects the custom recovery signature and automatically reflashes the stock recovery.