Ezt találtam:
World 1st N920I network repair done
REPAIR INSTRUCTIONS:
Reset EFS:
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 'Reset EFS' if you need to reset it.
Be carefully, do not perform this without necessity. Backup will be created automatically.
6. If you have yellow table on your device screen, then press 'Disable Factory Mode' button.
Operation: Patch Certificate
Selected model: SM-G920I
Software version: 23.7
Waiting ADB device... OK
Reading phone info...
Model: SM-G920I
Android version: 5.1.1
Product code: SM-G920IZKAKSA
Phone version: G920IDVU3DOJ6
PDA version: G920IDVU3DOJ6
CSC version: G920IKSA3DOJ1
CSC country code: KSA
CSC sales code: KSA
HW version: MP 0.800
Phone S/N: R58G527K7SH
Modem board: SHANNON333
RF cal date: 20150528
IMEI:
Checking Super user right... true
Initializating zTool... OK
Running zTool, please wait... OK
Reading modem... OK
Patching modem... OK
Writing modem... OK
Rebooting phone... OK
Patching CERT check... done
Done with Samsung Tool PRO v.23.7
Samsung Galaxy Z Flip5 256GB Platinum Silver (online exkluzív) <<>> Vsonic GR07 + Sony Hi-Res WI-H700 + Sony Hi-Res WI-1000X <<>> Spotify Premium<<>> LG 65" C31LA + LG S80QR 5.1.3