T399N after unlock Searching only

To connect SGH-T399 phone you have to perform the following steps:
1. Disconnect USB cable from phone.
2. Go to Menu->Settings->More->About Device.
3.Tap on "Build number" 7 times to enable developer options.
4. Go to Menu->Settings->More->Developer options.
5. Turn on "USB Debugging" option.
Platform: Samsung Android
Selected port: COM5
Selected model: SGH-T399
Detected phone model: SGH-T399
Firmware compiled date: Thu Sep 11 19:57:15 KST 2014
PDA version: T399UVUANI2
CSC version: T399TMBANI2
SW version: T399UVUANI2
Phone IMEI: 354777066443651
Phone SN: RV8FB123M5B
Android version: 4.2.2 (JDQ39)
Repairing network. Please wait, this can take some time…
Phone will restart now. Please don’t disconnect cable!
Network is successfully repaired.