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Samsung Galaxy S4 “Unlock Code Error” Solutions

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If you purchased a Samsung Galaxy S4 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 *#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

 

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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