t959p unlocking problem super user right false
 

Reading phone info...
Model: SGH-T959P
Android version: 2.3.4
Product code: SGH-T959HAPTLS
Phone version: T959PTLKH2
PDA version: T959PTLKH2
CSC version: T959PTLSKH2
IMEI: 356854040190720
Checking Super user right... false
Rooting phone, please wait... OK
Checking Super user right... false

try with 12.7 and post result

unlock done
Searching Samsung modem... detected COM18
Reading phone info...
Model: SGH-T959P
Country code: TLS
Cal date: 2011-04-11
Factory SW: TLKD2
Unique number: 76310000668360
Memory phone: KB100L00WM(T959V)
Software version: T959PTLKH2/T959PTLSKH2/T959PTLKH2/T959PTLKH2
IMEI: 356854040190720
Product code: SGH-T959HAPTLS

Reading phone info...
Model: SGH-T959P
Android version: 2.3.4
Product code: SGH-T959HAPTLS
Phone version: T959PTLKH2
PDA version: T959PTLKH2
CSC version: T959PTLSKH2
IMEI: 356854040190720
Checking Super user right... false
Rooting phone, please wait... OK
Checking Super user right... true
Reading data from phone... OK
Unlocking... OK
Rebooting phone... OK
Unlock done