repair IMEI samsung J1

J100h - J100ML

needed :

1- j1 null imei or 000000 imei

2- z3x box

3- usb data cable 

4- laptop or computer

process :

1- enable USB debugging ( about phone / build number click on it 7 time then go to developer options 
2- open samsung tool and select your device 
3- now select repair and type imei (Start with 359 No matter the rest write anything) and click on repair 
4 - will message appearing on phone click on yes
its done