Phone must be rooted!
If the software can’t root the phone automatically,
then you must root your device manually.
1. Power on the phone.
2. Tap 7 times on ‘Build number’ in ‘Settings’-‘About phone’ to enable ‘Developer options’,
go to ‘Settings’-‘Developer options’ and enable ‘USB debugging’.
3. Connect the phone to PC with USB cable, install drivers if needed.
4. Select device in ADB settings.
5. Press ‘Read EFS’ button to read backup or ‘Write EFS’ to restore or
press ‘Write CERT’ to restore certificates.
To backup/restore QCN, phone diagnostic port must be enabled.
Operation: Write CERT
Checking certificate file… OK
Done with Samsung Tool PRO v.24.4
SM-N915R4 Cert Write Done :)
SM-N915R4 Cert Write Done 🙂