How To Unlock Samsung:
 
IMPORTANT NOTICE: Make sure to turn off Wi-Fi under wireless connections to OFF for all Android Device before proceeding to entering the Unlock code. Our Samsung code process is 99.9% accurate if you provide the correct information. Therefore, a Video proof will be required if code error occur for verification. It is also good idea to film your unlocking process so I may help to troubleshoot the problem.
 
If you get "Network Unlock Unsuccessful" message. This is a known issue so not to worry. At the end of this instruction, there is a troubleshoot guide to help you resolve this issue.
 
Model: Most New Samsung Model
1.    Insert Unauthorized Sim Card into device
2.    Power on the device
3.    Enter Unlock Code when prompted
4.    Device should be unlock if "Code Accepted"
 
If the phone show "Phone Freeze" message. This mean someone already tried to enter the wrong code into this phone too many time. You will require to order a defreeze code.
 
If after you enter the Unauthorized Sim Card and phone is not prompt to enter the Unlock Code and your Samsung is android, Go to the dial screen and press *7465625*638*# Once prompted for code, enter 8 digit Unlock Code.
Or
If you see "No Valid Sim Card" after you insert an Unauthorized Sim Card, remove the Unauthorized Sim Card and use the Authorized Sim Card or with NO Sim Card and follow this instruction.
1.    Type #7465625*638*CODE# (CODE is the Unlock Code I sent you)
2.    Phone deactivated message means its unlocked
Or
1.    Switch ON the phone without a Sim Card (if this does not work try with a Unauthorized Sim Card first and if necessary try an Authorized Sim Card ) 
2.    Type: #0111*CODE#  (CODE is the Unlock Code I sent you)
 
Solution for "Network Unlock Unsuccessful" or "Code Error"
First check the IMEI you provide by type *#06# on the phone. If you provide the correct IMEI, then continue.
 
Troubleshoot Guide Solution #1
1.    Turn the phone Wi-Fi OFF and then turn device ON without SIM card.
2.    Type  *7465625*638*#
3.    You will see the NETWORK LOCK screen
4.    In MCC/MNC field, enter MCC/MNC code for the provider you want to use. (example: enter 310260 if you want to use this phone for T-mobile USA Sim Card; 310410 or 310380 for AT&T). Check this link for complete MCCMNC for your provider: http://en.wikipedia.org/wiki/Mobile_Network_Code (It is very important to try all the MCC/MNC code if your New Sim Card Network has more than one code)
5.    In CONTROL KEY field, enter the Unlock Code
6.    Press OK
7.    You should get a message: LOCK SUCCESSFUL
8.    Turn off your phone, insert your New Network Sim Card and power ON. The phone should be unlocked. If this solutions does not work for your phone; Go to Solution #2
 
Troubleshoot Guide Solution #2 (You will require a Defreeze (Unfreeze Code), or MCK code for this solution)
Follow these step carefully, as long as you have the correct code it will work 100%
1.    Insert an Unauthorized Sim Card and power ON your phone. You will see "SIM Network Unlock PIN" or "Enter Network Lock Control Key" on the screen.
2.    Type your Defreeze Code (MCK Code) and hit Unlock button. You will get a "Unsuccessful" message but don't worry, this is normal.
3.    Now type the Unlock code (Network or NCK Code) and hit Unlock button. If the phone say "Network Lock Successful" it worked and your phone unlocked. But if not, go on to step 4.
4.    If you get "Unsuccessful", hit Dismiss button and type *2767*3855# on phone keypad. (CAUTION! This will reformat all your data!, you will lost all data on the phone.)
5.    After phone restarts, enter the Defreeze Code (MCK Code) when prompted at "SIM Network Unlock PIN" or "Enter Network Lock Control Key" screen and hit Unlock button. You will get a "Unsuccessful" message but don't worry, this is normal.
6.    Enter the Unlock Code (Network or NCK code) and hit Unlock button.
7.    Your phone should now say "Network Lock Successful"
8.    Now your phone is successfully unlocked!
 

Solution #1 (Samsung Galaxy S2, S3, Note , Note 2)

Follow these step carefully, as long as you have the correct code it will work 100% (Your phone must be updated to the latest firmware!)

1. Please trouble shoot as usual with the customer, the code must be correct and the phone MUST prompt for the code.

2. If nothing we can proceed to use the "release method" on the phone(s):

a. Go to the Dial pad and dial *#197328640#

b. Please click on number [1] UMTS > [1] Debugging screen > [8] Phone Control > [6] NETWORK LOCK

c. You will see 3 options

d. Please click on number [1] Perso Sha256 INFO, the screen will change slightly

e. Please hit the MENU button then when the menu pops up please carefully hit BACK to return to the previous screen

f. Please click on number [2] Perso Sha256 ON, the screen will change again to a one line message

g. Restart the phone on the screen by holding the power button and click RESTART

h. When the phone prompts for the unlock code simply enter the unlock code

i. Your phone is now permanently unlocked!

(Samsung Galaxy S4 Only)

Follow these step carefully, as long as you have the correct code it will work 100% (Your phone must be updated to the latest firmware!)

1. Make sure that the phone PROMPTS for the code with a NON accepted sim card and that your IMEI is correct by dialing *#06#

a. Go to the Dial pad and dial *#0011#

b. Please click your MENU button (Bottom LEFT button) and click BACK on the menu that appears, Nothing will happen do not worry please move to the next step

c. Please click your MENU button AGAIN and this time click KEY INPUT

d. When the Key input box appears please input the number "1" and hit OK

e. You will see a number 1 for a while, please wait until it changes into the SERVICE MENU

f. Please click [1] UMTS > [1] DEBUGGING SCREEN > [6] Phone Control > [6] Network LOCK

g. You will see 3 OPTIONS within Network LOCK

h. Please click on number [1] Perso Sha256 INFO, the screen will change slightly

i. Please hit the MENU button then when the menu pops up please carefully hit BACK to return to the previous screen

j. Next Please click on number [2] Perso Sha256 ON, the screen will change again to a one line message

k. Restart the phone on the screen by holding the power button and click RESTART

l. When the phone prompts for the unlock code simply enter the unlock code provided to you

m. Your phone is now permanently unlocked!

*If this is not working, go to Solution #2

Solution #2

Follow these step carefully, as long as you have the correct code it will work 100%

1. Power off and on your phone with different network sim card. "SIM network unlock PIN" or "Enter Network Lock Control Key" screen will appear.

2. Type your Unfreeze code (MCK code) and hit Unlock button. You will get "unsuccessful message" again but don't worry.

3. Now type the Unlock code (Network or NCK code) and hit Unlock button.

*If phone say "Network Lock Succesful" it worked, but if not, proceed to step 4.

4. If you get "unsuccessful" again then hit Dismiss button and type *2767*3855# on phone keypad. (CAUTION! This will reformat all your data!)

5. After phone restarts, type the Unfreeze code (MCK code) when prompted to enter "SIM network unlock PIN" or "Enter Network Lock Control Key" screen and hit unlock button.

It will say "unsuccessful" again, don't worry!

6. Type the Unlock code (Network or NCK code) and hit Unlock button.

7. Your phone should now give you the message "Network Lock Successful"

Now your phone is successfully unlocked!

*If this is not working, go to Solution #3

Solution #3

1. Turn off the Wi-Fi on your phone and then turn device ON without SIM card.

Once it's on go to phone dial screen and DIAL: *7465625*638*#

it will bring you to the NETWORK LOCK screen.

a in MCC/MNC field enter code for the service provider your phone is originally from (eg 31026 for T-Mobile USA) check here for list of codes: http://en.wikipedia.org/wiki/Mobile_Network_Code

*If your network has more than one mcc/mnc please try all of them this is very important

b. in CONTROL KEY field enter the UNLOCK code

c. hit OK

d. you should get a message: LOCK SUCCESSFUL

Power phone down, insert SIM card you want your phone to work with and power on.
 

Model: SGH-A127, SGH-E840, SGH-F210, SGH-J600, SGH-T749
1.    Turn ON your phone without Sim Card
2.    Type #0111*CODE# (CODE is the Unlock Code I sent you)
3.    Device should say "Network Lock Deactivated"
4.    The phone may reboot and the unlock is completed
 
Model: A107, A137, A167, A177, A227, A237, A437, A517, A707, A767 Propel, A837 Rugby, A798 Mythic, A867 Eternity, A887 Solstice, C417, E250, E370, E590, F400, F480, F490, G600, i907 Epix, J700, L760, S366, T309, T319, ST349, T409, T429, T439, T459 Gravity, T469, T509, T609, T639, T659, T669, T919 Behold, T929, U900, X497, Z105, Z107, Z560.
1.    Turn ON your phone without Sim Card
2.    Type #7465625*638*CODE# (CODE is the Unlock Code I sent you)
3.    Device should say "Network Lock Deactivated"
4.    The phone may reboot and the unlock is completed
Or
1.    Turn ON your phone Authorized Sim Card
2.    Type #7465625*638*CODE# (CODE is the Unlock Code I sent you)
3.    Device should say "Network Lock Deactivated"
4.    The phone may reboot and the unlock is completed
 
Model: SGH-A877
1.    Insert an Authorized Sim Card and turn ON your phone
2.    Device must be in Portrait mode. Hit the Dial button on the touch screen.
3.    Type #7465625*638*CODE# (CODE is the Unlock Code I sent you)
4.    Device should say: “Network Lock Deactivated”
5.    Phone may automatically reboot
 
Model: A737, A777, Blackjack SGH-i607, SGH-i616, SGH-i617, SGH-i627, SGH-i637, SGH-A877
1.    Insert an Authorized Sim Card and turn ON your phone
2.    Type  #7465625*638*CODE# (CODE is the Unlock Code I sent you)
3.    Device should say: “Network Lock Deactivated”
4.    Phone may automatically reboot
 
NOTE: If you are unable to connect to service provider or unable to make outgoing calls or receive messages, this has nothing to do with your phone being locked or not, you need to force the Blackjack to change to GSM mode, this can be done as follows:
1.    Type *#1546792*#
2.    Select Option 3 Network & Call Settings
3.    Select option 5 Network Mode
4.    Select GSM
5.    This should resolve your problem.
 
Model: AT&T / Cingular BlackJack
1.    Insert an Unauthorized Sim Card and turn ON your phone
2.    Power on the device. Wait approximately 30 seconds until the Sim Lock application appears (the delay may be longer if the user has already attempted an unlock with the wrong code)
3.    Enter the unlock code in the blank field
4.    Press Ok. If the Unlock Code is incorrect, an error dialog will appear.  After pressing Ok on this dialog, the user has to re-enter the Unlock Code after delays (see above in Device Specific Information). If the Unlock Code is correct, a success dialog will appear.
5.    Press Ok
6.    The device is now unlocked and should continue booting
Or
1.    Insert an Unauthorized Sim Card
2.    Enter Unlock code when prompted
NOTE: If you are unable to connect to service provider or unable to make outgoing calls or receive messages, this has nothing to do with your phone being locked or unlocked, you need to force the BlackJack to change to GSM mode, this can be done as follows:
1.    Power on your Phone
2.    Type *#1546792*#
3.    Select Option 3 Network & Call Settings
4.    Select option 5 Network Mode
5.    Select GSM
Or
1.    Power on without Sim Card, you will see a message saying "SIM Failure" at the top of the screen.
2.    Click "Done" then press the green button to get into the dial pad. Type in #7465625*638*
3.    You will see "Enter Network Control Key"
4.    Enter Unlock Code
5.    Click OK
6.    Your phone is now unlocked
 
Model: Fido i616 Jack
1.    Insert Fido Sim Card and power ON
2.    Type #7465625*638*
3.    Network Lock Screen appear, enter Unlock Code
4.    Phone is now unlocked
 
Model: i450 & i560
1.    Turn ON your phone without Sim Card
2.    Type #PW+Unlock Code+1#
The letter P appear after you press star button (*) three times quickly
The letter W appear after you press the star button (*) four times quickly
The letter + appear after you press the star button (*) two times quickly
 
Model: i780
1.    Insert an Unauthorized Sim Card and turn ON your phone
2.    Enter the PIN code to Sim Card
3.    At the top of screen an "exclamation mark" icon will appear
4.    Click on "exclamation mark" icon
5.    Settings Link will appear
6.    Click on it
7.    Virtual keyboard appears on screen with Enter PIN prompt
8.    Enter Unlock Code
 
Model: i900 / Omnia
1.    Make sure Wireless Mode is ON
2.    Insert an Unauthorized Sim Card and turn ON your phone
3.    Enter the PIN code of this refused Sim Card
4.    Now should ask for Unlock Code
5.    Enter Unlock Code
 
Model : J600
Unlock Code is enter as: #0149*MCK# or #0111*NCK#
1.    Press the # button on the keypad 1 time to display #
2.    Type the 4 digit code which corresponds to your lock type (in most cases the MCK code will work with code:1)
3.    Press the star (*) button on the keypad 1 time
4.    Enter Unlock Code which corresponds to your lock type
5.    Press the # button on the keypad 1 time
6.    Phone should now be unlocked
7.    If phone is still locked, you have a 2nd lock activated so please check locks and enter 2nd code
 
Model: SGH-P207
1.    Reset to original factory setting by typing *2767*3855#, your phone will reboot
2.    Insert an unauthorized Sim Card and turn ON your phone
3.    A Wrong Sim message will appear
4.    Enter * #9998*3323#
5.    Exit white screen appear, tap the right soft key, (occasionally it will not go to the next screen, if so press the down key)
6.    Menu appear, scroll down to the malloc Fail option, this will reboot, and normal service screen will appear
7.    Enter *0141# and press the green Call key
8.    Personalized screen appear, the name of the current Sim Card provider will appear on the screen
9.    Turn phone OFF, and then turn back ON
10. Go to menu by tapping left soft key
11. Settings is in bottom right hand corner
12. Select option 7 = Security
13. Select option 6 = Sim Lock
14. Select option 1 = Disable
15. Enter 00000000 (eight zeros), the message will come up Sim lock disabled with a check mark; your phone is now unlocked to use with other carriers.
 
Model: SGH-T609
1.    Turn ON your phone without Sim Card
2.    Type #011*CODE# (CODE is the Unlock Code I sent you)
3.    Device should say: “Network Lock Deactivated”
4.    Phone may automatically reboot
 
Model:   Zxxx Series, Dxxx Series, Pxxx Series, F490 (ex: Z140, D520, P200, etc...)
1.    Insert an Unauthorized Sim Card and turn ON your phone
2.    Enter #7465625*638*CODE# (CODE is the Unlock Code I sent you)
 
Model: Z320i, Z510, Z650i
1.    Insert an Unauthorized Sim Card and turn ON your phone
2.    Type **CODE# (CODE is the Unlock Code I sent you)
Or
1.    Insert an Unauthorized Sim Card and turn ON your phone
2.    Type #0111*CODE# (CODE is the Unlock Code I sent you)

Model: Most Non Android Samsung
1.    Insert an Unauthorized Sim Card and turn ON your phone
2.    Phone will ask for "Password"
3.    Enter Unlock Code
Or
1.    Insert an Unauthorized Sim Card and turn ON your phone
2.    Type #0111*CODE# (CODE is the Unlock Code I sent you)
 
PHONE FREEZE: SIM Unavailable
1.    Insert an Unauthorized Sim Card and turn ON your phone so phone displays "Phone Freeze, SIM unavailable. Please contact service provider"
2.    Enter MCK (Defreeze Code) and press "OK", "Confirm" or the center button  (no digits will be seen on display when entering this code)
3.    Now phone will ask you for Network Code, enter NCK (Unlock Code) and press OK. 
4.    If nothing happens when you enter NCK (Unlock Code), you will need to compose code like this: #7465625*638*CODE# (CODE is the Unlock Code I sent you)
5.    Now your phone should be unlocked.

Note. If phone does not accept NCK (Unlock Code), and still have no luck with #7465625*638*
CODE# (CODE is the Unlock Code I sent you), please try step 4 using MCK (defreeze code)

To solve "Phone Freeze" or "Return for service problem"
1.    Insert an Unauthorized Sim Card and turn ON your phone
2.    Enter "Defreeze" Code (it will not be visible) and click OK key. (If you purchased our Samsung Factory method, then the "Freeze Code" is also known as Defreeze Code)
Or
1.    Insert an Unauthorized Sim Card and turn ON your phone
2.    Screen will display "Phone is freeze / SOS"
3.    Type the Defreeze Code (Nothing will show on screen)
4.    Hit the "Enter Button"
5.    Phone will ask for the Network Lock Code
6.    Enter Unlock Code
7.    Phone will be unfreeze and unlocked