The phone will boot into the system. Open the Magisk app to finalize the setup. 💡 Troubleshooting Tips
Open Magisk, tap , choose Select and Patch a File , and select the AP file. The phone will boot into the system
: Ensure you are using U2 firmware. Flashing U1 or U3 firmware on a U2 device will result in a "Binary Check Fail" error in Odin. Are you stuck on a specific Odin error code ? : Ensure you are using U2 firmware
: This is the most critical step. Without an unlocked bootloader, you cannot flash custom files. : This is the most critical step
Long press when the warning screen appears to enter Unlock Mode. Confirm the unlock (this wipes the device). 2. Prepare the Root File Download the SM-A307FN U2 Android 9.0 firmware to your PC. Extract the ZIP file. Look for the file starting with AP . Copy that AP file to your phone's internal storage. Install the Magisk App APK on your phone.
: Rooting triggers a factory reset. Save all photos and contacts. Battery : Ensure the device has at least 50% charge.
Click the , CP , and CSC buttons and select the original files from your extracted firmware. In the Options tab, uncheck Auto Reboot . Click Start . 4. Final Activation