Newer Sony Models (Xperia Range)
Most new Sony will ask for the unlock code when you put a sim in it wont yet accept because it is locked.
When you receive your unlock code(s) they will look similar to the example below:
Your unlock code is :
CCK: 260704XXXXXXXXXX
NCK: 221877XXXXXXXXXX
NSCK: 40710XXXXXXXXXX
SPCK: 34120XXXXXXXXXX
The letters CCK, NCK, NSCK, SPCK indicate which code to use the different locks on your handset.
So you need to find out which lock is active on the handset ( But usually you'll only need the one marked NCK).
To do this you need to look in a secret menu on the phone
Tap the following in as if you were dialing a number to make phone a call...
*#*#7378423#*#*
A new hidden menu will appear.
Tap on service info
Tap on SIM lock
If you have [x] Network 5 - this means your phone needs the net NCK Code
If you have [x] Service provider 5 - this means your phone needs the SPCK Code
Aug 29, 2013 A Sony Ericsson K320i unlock code is needed for unlocking the mobile to any Network or Carrier. Getting an Sony Ericsson K320i unlock code is simple. First you need to find out your mobile phone's IMEI number. You can find it by typing.#06# on your Sony Ericsson K320i. This number is unique to your phone and will. This facility allows you to get the unlock code for free. Note: in most cases, 7 codes will be shown and your mobile will usually allow 5 attempts before your phone is hard locked which entails your phone going in to be unlocked via a cable connection - and that results in a monetary charge. Hi all I have a Sony Ericsson K300i locked to.
Other Models: 99% Sony Ericsson
1 - Switch ON your phone without SIM Card,
2 - Press 1 time the left arrow,
3 - Press 2 times the button * ,
4 - Press 1 time the left arrow,
5 - The message 'Personalize with MNC2' will appear,
6 - You can now enter the Unlock Code we send to you.
If your phone have a 'JogDial' (ex : Sony Ericsson K700i) you must press 'Down Arrow' instead of 'Left Arrow' for step 2 & 3. We mean by 'Down Arrow' to direct the JogDial down !
W950 models need to use * up * down ** down (up/down using the jog dial on the side).
Sony Ericsson K300i Unlock Code Free Shipping
Satio
Enter # p w + CODE + 1 # into your phone.
Tap repeatedly the star key to get p w + symbols
Sony Ericsson K300i Unlock Code Free Online
Older Models
1. Insert a Non accepted SIM card ( EG your new SIM)
2. Switch the phone on
3. Press Left * * Left ( Left is move JogDial stick left )
4. This will open a hidden menu with 4 options (See image)
5. Select 'Network' ( You should see a locked padlock next to the option )
6. Enter the unlocking code we sent you. ( The one marked NCK )