Samsung Galaxy S2, S3, Note, Note 2 (Network Unlock Request Unsuccessful) Troubleshooting

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!