How to Enter Unlocking Code on Sony?

Once you receive your unlocking code from please follow the instructions below

Code Input Instructions

How to Enter Unlock Codes on all Sony Ericsson Models
Different phones have different Unlock Code Input Instructions, Try the following Instructions in Order:
How to Enter Unlock Codes on Sony Ericsson Cell Phones (most models):

Input a non accepted simcard
Phone will prompt you for a code
Enter code provided by us

If your phone has a “JOGDIAL” (for example SonyEricsson K700i), then you must press the “down arrow” instead of the “left arrow” for step 3 & 5. By “Down Arrow” I mean directing the Jogdial down!

For the unlocking of a locked Sony Ericsson no sim card is required.
Turn on the handset. Display will indicate “Insert SIM.”
Press the left Arrow (<) button.
Press the star (*) button twice.
Press the left Arrow (<) button again.
You will briefly see one of the following messages listed on devices display: “Personalized with MNC2” or “Personalized with MNC3”.
Wait approximately three seconds.
The display will indicate “Network” and a picture of a closed lock.
Press Select.
The display will indicate “Unlock (Net) 5” and “NCK:”
Enter the 16 digit NLCK4U code (unlock code we provided you) and press okay.
The handset will display “Network unlocked” and the display “Insert SIM” appears.
The handset is successfully unlocked.
If Phone says, “Code Accepted” or “Network Unlock Successful” or “Not Yet Personalized” your phone is fully Unlocked

*If you are not receiving any signal after unlocking, make sure your wireless connections are turned on after unlocking the phone. Also pull the battery and restart phone.