samsung s3 Gt-i9300 emergency call only problem....
screen shot:

procedure: root first before repair ang network
Iroot: http://www.4shared.com/file/48jAG_GJ..._7337ba1.html?

pagkatapos iroot open z3x samsung tools

elected model: I9300
Selected port: COM6 Z3X BOX Serial Port
Selected port speed: 115200
Waiting ADB device...
Please, allow USB debugging on phone... OK
Reading phone info...
Model: GT-I9300
Android version: 4.3
Product code: Not Active
Phone version: I9300BUUGMJ3
PDA version: I9300XXUGMJ9
CSC version: I9300VFGGMJ5
IMEI: 353720050524467
Phone S/N: 00000000000
Checking Super user right... true
Reading modem... OK
Patching modem... OK
Writing modem... OK
Reading kernel... OK
Patching kernel... OK
Writing kernel... OK
Rebooting phone... OK
Repair done
Done with Samsung Tool v.18.7
ito na sya lumabas na ang smart

done po thanks for viewing ( reference only)
screen shot:

procedure: root first before repair ang network
Iroot: http://www.4shared.com/file/48jAG_GJ..._7337ba1.html?

pagkatapos iroot open z3x samsung tools

elected model: I9300
Selected port: COM6 Z3X BOX Serial Port
Selected port speed: 115200
Waiting ADB device...
Please, allow USB debugging on phone... OK
Reading phone info...
Model: GT-I9300
Android version: 4.3
Product code: Not Active
Phone version: I9300BUUGMJ3
PDA version: I9300XXUGMJ9
CSC version: I9300VFGGMJ5
IMEI: 353720050524467
Phone S/N: 00000000000
Checking Super user right... true
Reading modem... OK
Patching modem... OK
Writing modem... OK
Reading kernel... OK
Patching kernel... OK
Writing kernel... OK
Rebooting phone... OK
Repair done
Done with Samsung Tool v.18.7
ito na sya lumabas na ang smart

done po thanks for viewing ( reference only)