Samsung i537 Full Unlock Solution Android version: 4.3 Unlock done Done with Samsung Tool v.17.2

I've unlocked the phone Samsung i537, but after the unlocking with
z3xbox it has problems with the network, I mean signal problems.


After a few minutes with full network, it goes down.Imei and basband is ok


Please help me, Z3x-Team!


Here is my log:


Imei and basband is ok

Code:

Selected model: I537
Selected port: COM95 SAMSUNG Mobile USB Serial Port 
Selected port speed: 115200
Searching ADB device...
Please, allow USB debugging on phone...
Please, allow USB debugging on phone... OK
Reading phone info...
Model: SAMSUNG-SGH-I537
Android version: 4.3
Product code: SGH2I537ZAMATT
Phone version: I537UCUBML2
PDA version: I537UCUBML2
CSC version: I537ATTBML2
IMEI: 356554052433865
Phone S/N: R31D801HKKB
Checking Super user right... true
Backuping MMCBLK... OK
Checking phone at COM95
Backuping NVM... OK
Writing data to phone... OK
Rebooting phone... OK
Waiting phone...
Please, allow USB debugging on phone...
Please, allow USB debugging on phone... OK
Bypass MSL... OK
Unlocking... OK
Checking phone at COM95
Restoring NVM... OK
Reseting... OK
Unlock done
Done with Samsung Tool v.17.2