4.4.2 kitkat networck solution after Supper imei unlock

1/ 4.4.2 kitkat net probleme after supper imei unlock
connect your N9005 to the Box using USB in ( dm+modem+adb ) mode by dialing *#0808# in Samsung's Dialer ..
1st - Choose N900w8 from the list then click Repair 3G Network this will Fix the 2G network
2 - choose N9005 again and press repair 3G network again this will Fix the 3G network with 2G working too

2 /
I don't know what problem was it but I did repair imei by ticking efs test mode reset phone wipe cache partition and factory reset so i still don't know was it problem with network coverage on my work place but now I'm home and it's working fine on all networks.