sm-j100h read code no need root... UNLOCK INSTRUCTIONS:

UNLOCK INSTRUCTIONS:
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. Press 'Unlock' button for direct unlock or 'Read codes' to read security codes.

Operation: Read Codes
Selected model: SM-J100H
Software version: 22.9

Searching Samsung modem... detected COM57
Reading phone info... OK
Model: SM-J100H
Version: J100HXXU0AOF2/J100HOJV0AOF2/J100HXXU0AOF2/J100HXXU0AOF2
Product code: SM-J100HZWDMID
Phone S/N: R21G8--------
Imei: 3579-------------
Unique number: C01B82060A482
Reading codes... OK
Please wait, calculating codes... OK (time - 00:02:14)
Freeze code: 68246146
NET lock: 60639170
For check lock status: *#7465625#

Done with Samsung Tool PRO v.22.9

thank Z3X box...