The bootloader unlocking process will factory reset your phone. Charge Your Battery: Ensure you have at least 50% power.
Locate the and tap on it rapidly seven (7) times. You will see a toast notification saying, "You are now a developer!"
You need a Windows-based computer to run the Samsung flashing utilities. Ensure you download and install the following tools: twrp samsung j2 core
Unlike Xiaomi or OnePlus, Samsung’s bootloader for the J2 Core requires a hidden toggle. Here’s how to unlock it:
Go back to the TWRP main menu, select , and choose Recovery . Your phone will restart back into TWRP with a fully readable storage system. The bootloader unlocking process will factory reset your
Try a different USB port or cable. Re-install Samsung drivers.
The moment the screen goes black, immediately switch your fingers and hold the buttons. You will see a toast notification saying, "You
Release the buttons as soon as you see the Samsung logo. Your device will boot into TWRP Recovery.
What is the exact of your J2 Core? (e.g., SM-J260F, SM-J260G) What Android version is it currently running? Did you encounter a specific Odin error message ?