£2 on eBay
£2.50 here but check ya phone first, just follow the instructions
Sony
INSTRUCTIONS TO SEE IF THE UNLOCK CODE WILL WORK
If you have a brand new phone you do not have to do the below check
It is highly recommended that you do it if you have a used phone
- Start the phone without a sim card inside
- Enter: *#*#7378423#*#*, A menu will appear
- Go to: SERVICE INFO then Go to: SIMLOCK
- At the row called NETWORK, what number is here?
If the NETWORK row is followed by the number: 10, 9, 8 , 7, 6, 5, 4, 3, 2, 1 you are ok, you CAN unlock your phone
In the NETWORK row is followed by the word UNLIMITED, you are ok, you CAN unlock your phone
If the NETWORK row is followed by the number: 0 then you CANNOT unlock your phone – please do not order as code will not work.