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Samsung Galaxy S2, S3, and Note 2 “Unlock Code Error” Solutions

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“Unlock Code Error” fix for your Samsung Galaxy S2, S3, and Note 2

If you purchased a Samsung Galaxy S2, S3, or Note 2 unlock code from us and are getting an error when you enter in the code, please refer to the instructions below.

There are 3 sets of instructions to try.

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 DEFREEZE code and hit Unlock button. You will get “unsuccessful message” again but don’t worry.

3. Now type the NETWORK 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 erase all your personal data like your notes)

5. After phone restarts, type the DEFREEZE 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 in the NETWORK code and hit Unlock button.

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

Now your phone is successfully unlocked!

 

If the instructions above don’t work, try these:

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

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

c. You will see 3 options

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

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

f. 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!

 

If the instructions above don’t work, try these:

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.

– 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

– in CONTROL KEY field enter the UNLOCK code
– hit OK
– you should get a message: LOCK SUCCESSFUL

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

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