Root mo muna http://koiralakamal.com.np/how-to-root-j200/ then read codes sa z3x.
Operation: Read Codes
Selected model: SM-J200GU
Software version: 24.0
Please wait, generating hash codes file, this can take few minutes... OK
Waiting ADB device... OK
Reading phone info...
Model: SM-J200GU
Android version: 5.1.1
Product code: SM-J200GZKDGLB
Phone version: J200GUDXU1AOJ3
PDA version: J200GUDXU1AOJ1
CSC version: J200GUOLB1AOJ1
CSC country code: PHILIPPINES
CSC sales code: GLB
HW version: MP 0.300
Phone S/N: R28GA2329DA
Modem board: SHANNON308
RF cal date: 20151021
IMEI:
Checking Super user right... true
Initialization AT RIL... OK
Initializating zTool... OK
Running zTool, please wait... OK
Reading nv data... OK
Checking NV data... OK
Calculating... OK
Please wait, calculating codes... OK (time - 00:00:23)
Freeze code: 75285814
NET lock: 59313797
Sub lock: 00000000
SP lock: 00000000
CP lock: 00000000
SIM lock: 00000000
For check lock status: *#7465625#
Done with Samsung Tool PRO v.24.0

Operation: Read Codes
Selected model: SM-J200GU
Software version: 24.0
Please wait, generating hash codes file, this can take few minutes... OK
Waiting ADB device... OK
Reading phone info...
Model: SM-J200GU
Android version: 5.1.1
Product code: SM-J200GZKDGLB
Phone version: J200GUDXU1AOJ3
PDA version: J200GUDXU1AOJ1
CSC version: J200GUOLB1AOJ1
CSC country code: PHILIPPINES
CSC sales code: GLB
HW version: MP 0.300
Phone S/N: R28GA2329DA
Modem board: SHANNON308
RF cal date: 20151021
IMEI:
Checking Super user right... true
Initialization AT RIL... OK
Initializating zTool... OK
Running zTool, please wait... OK
Reading nv data... OK
Checking NV data... OK
Calculating... OK
Please wait, calculating codes... OK (time - 00:00:23)
Freeze code: 75285814
NET lock: 59313797
Sub lock: 00000000
SP lock: 00000000
CP lock: 00000000
SIM lock: 00000000
For check lock status: *#7465625#
Done with Samsung Tool PRO v.24.0
