Got "Network unlock request unsuccessful" message on your Android-powered Samsung phone after you typed your unique unlock code onto "SIM network unlock PIN" or "Enter Network Lock Control Key" screen?
You can easily fix it. All you need is your unique unlock code and unfreeze code. If you don't have unlock or unfreeze code you can buy it from http://www.fastgsm.com/en
Instructions:
1. Power off and on your phone with different network sim card. SIM network unlock PIN or Enter Network Lock Control Key screen shows up.
2. Type your unfreeze code and hit Unlock button. You will get unsuccessful message but don't worry that's fine.
3. Type unlock code and hit Unlock button.
4. If you get unsuccessful again then hit Dismiss button and type
*2767*3855#
on phone keypad. Now wait until the phone is restarted. This operation will erase all data in your phone!
5. Now type the unfreeze code onto SIM network unlock PIN or Enter Network Lock Control Key screen and hit unlock button.
6. Type your unique unlock code and hit Unlock button.
7. Your phone should be unlocked now!
For more, please visit http://www.FastGSM.com/en
source
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