Click the button and select the TWRP .tar file you downloaded.
Try a different USB port (preferably USB 2.0), use a different USB cable, or reinstall the Samsung USB drivers.
Open the newly revealed Developer Options menu. Toggle on OEM Unlocking and USB Debugging .
, which can significantly improve speed on this 1GB RAM device. Magisk/Rooting : Enables you to flash the
(2018/2020) relies on unofficial community builds often hosted on GitHub or specialized Telegram groups. Installation Highlights
: Navigate to Settings > About Phone and tap Build Number seven times. Then, enable OEM Unlocking and USB Debugging .
: Save your entire OS before making changes.
Flash the Magisk zip file within TWRP to gain root access. This allows you to use battery-saving apps, CPU overclocking tools, and advanced ad-blockers.
Download and install the official Samsung USB Drivers on your Windows PC.
Press and hold to force the phone out of download mode.
Launch the Odin application on your computer. Connect your J2 Core to the PC using your USB cable. The ID:COM box in Odin will turn blue, indicating a successful connection. Step 3: Flash the TWRP File
