i8552 Unlock Done by Z3X
Procedure:
1. Disconnect USB cable from phone.
2. Go to Menu->Settings->Applications->Development.
3. Turn on "USB Debugging" option.
4. When message is appear press "Yes".
5. Go to dial window.
6. Enter "*#7284#" number.
7. Set "USB" radio button to "PDA" value.
8. Close window.
9. Go to dial window.
10. Enter "*#9090#" number.
11. Set "Diag config" to "USB" value.
12. Restart phone.
13. Press "Read Info" in software.
14. press "Read Codes"

Price Is 750ph
Procedure:
1. Disconnect USB cable from phone.
2. Go to Menu->Settings->Applications->Development.
3. Turn on "USB Debugging" option.
4. When message is appear press "Yes".
5. Go to dial window.
6. Enter "*#7284#" number.
7. Set "USB" radio button to "PDA" value.
8. Close window.
9. Go to dial window.
10. Enter "*#9090#" number.
11. Set "Diag config" to "USB" value.
12. Restart phone.
13. Press "Read Info" in software.
14. press "Read Codes"

PHP:
Selected model: I8552
Selected port: COM46 SAMSUNG Mobile USB Serial Port
Selected port speed: 115200
Reading phone info...
PDA/CSC version: I8552XXANB1/I8552OLBANB1
Phone version: SW VERSION :None
Phone HW: MP 0.800
Cal date: 2013.11.01
Reading IMEI... OK
IMEI: 357091056544453
Phone S/N: RZ1DB06PV9
Build: 8X25Q-QSOSKOLYM-3030
Done with Samsung Tool v.17.0
Selected model: I8552
Selected port: COM46 SAMSUNG Mobile USB Serial Port
Selected port speed: 115200
Reading phone info...
PDA/CSC version: I8552XXANB1/I8552OLBANB1
Phone version: SW VERSION :None
Phone HW: MP 0.800
Cal date: 2013.11.01
Reading IMEI... OK
IMEI: 357091056544453
Phone S/N: RZ1DB06PV9
Build: 8X25Q-QSOSKOLYM-3030
Bypass MSL... OK
Reading codes... OK
Searching server for decrypt codes... OK
Freeze code: 83616384
NET lock: #7465625*638*91948081#
Sub lock: #7465625*782*00000000#
SP lock: #7465625*77*00000000#
CP lock: #7465625*27*00000000#
SIM lock: #7465625*746*00000000#
For check lock status: *#7465625#
Done with Samsung Tool v.17.0
Price Is 750ph