Your bootloader is locked. Re-check OEM Unlocking in Developer Options. Some region-specific J7s (e.g., SM-J710F from Middle East) require waiting 7 days after enabling OEM unlock.
Modification carries a risk of "bricking" (rendering the phone unusable) if steps are not followed exactly. twrp-3.6.0-9-on7xelte.tar
Create a perfect byte-for-byte snapshot of your entire operating system, apps, and data. Your bootloader is locked
. This is critical for allowing custom partitions to be flashed. USB Debugging: USB Debugging to allow your PC to communicate with the phone via ADB. Flash Guide via Odin extension indicates this file is meant to be flashed using , Samsung's official firmware flashing tool for Windows. Enter Download Mode: Power off the device, then press and hold Volume Down + Home + Power buttons simultaneously. Press when prompted to continue. Setup Odin: on your PC and connect your phone via USB. Load TWRP: button in Odin and select the twrp-3.6.0-9-on7xelte.tar Configure Options: In the Odin "Options" tab, uncheck Auto Reboot Modification carries a risk of "bricking" (rendering the
The process takes only a few seconds. Once complete, the box above the ID:COM port will display a green message. Step 4: Booting into TWRP for the First Time
: If your phone hangs on the Samsung logo after flashing, you forgot to "Format Data" to clear the system encryption. Boot back into TWRP and execute a data format.
Congratulations! TWRP 3.6.0-9 is now permanently installed.