1. Power off phone and remove simcard
2. Power on phone. Display will say ‘Insert SIM.’
3. Press the left arrow (<) button once
4. Press the star (*) button twice
5. Press the left arrow (<) button again
6. You will briefly see one of the following messages on the phone’s display:
‘Personalized with MNC2′ or ‘Personalized with MNC3′
7. Wait approximately three seconds. The display will indicate ‘Network’ and a picture of a closed lock. Press Select
8. The display will indicate ‘Unlock (Net) 5′ and ‘NCK’. Enter your 16 digit unlock code and press ok
To find out which locks are enabled on your Sony Ericsson cell phone, just press:
>*<<*<* (right arrow, star, left arrow, left arrow, star, left arrow, star)
- Select “Service Info”
- Select “Sim Lock”
- You should see “network”, “network subset”, “service provider”, “corporate”, “extended”. And next to each you should see a small lock. If the lock is in the locked position, that service is locked. If the lock is unlocked, then that particular service us unlocked (therefore you won’t need a code for it)
Sony Ericsson Xperia X10 unlock code instructions:
1. Put in a sim card from a non accepted network
2. Turn on the phone
3. It will then request for an unlock code
4. Press the unlock code box with your finger and then the number pad will appear at the bottom of screen
5. Input the unlock code
6. Press “UNLOCK” button which is below the unlock code box on screen
To find the KBH (S/N) on your Sony Ericsson, just press:
>*<<*<* (right arrow, star, left arrow, left arrow, star, left arrow, star)
- then select “Service Info”
- then select “Configurations”
- you will see your IMEI + KBH info
There is also a simpler way to get the KBH on some Sony Ericsson phones, by looking at the sticker behind the battery as shown on this picture:

Sony Ericsson Vivaz unlock code instructions:
1 – Switch ON your phone without a SIM Card
2 – Compose #PW+CODE+1#
(where CODE is the unlock code you are sent by email)
Press the star (*) button repeatedly to make the P, W or + appear
Sony Ericsson Satio unlock code instructions:
1 – Switch ON your phone without a SIM Card
2 – Compose #PW+CODE+1#
(where CODE is the unlock code you are sent by email)
Press the star (*) button repeatedly to make the P, W or + appear
Sony Ericsson unlock code instructions:
-Switch ON your phone without Sim card
-Press 1 time the left arrow
-Press 2 times the button *
-Press 1 time the left arrow
-’Personalize with MNC2′ will appear
-You can now enter your unlock code
If your phone has a ‘JOGDIAL’ (ex : SonyEricsson K700i) you must press ‘Down arrow’ instead of ‘Left arrow’ for step 2 & 3. We mean by ‘Down arrow” to direct the Jogdial down.