Twrp Samsung J2 Core ◉

Locate the field and tap it rapidly 7 times . A toast notification will read, "You are now a developer!"

Open Settings > System > Developer Options. Toggle on both USB Debugging and OEM Unlocking . Downloads Needed twrp samsung j2 core

Go back to the main menu and open Developer Options . Enable USB Debugging and OEM Unlocking . Locate the field and tap it rapidly 7 times

A common problem when installing TWRP on Samsung devices is boot looping, where the phone gets stuck on the Samsung logo. This often occurs because of Samsung's security features that replace custom recoveries with the stock one. To fix this: or reinstall the Samsung USB Drivers.

Try switching to a different USB port (preferably USB 2.0). Replace your USB cable, or reinstall the Samsung USB Drivers.