Does anyone know how young Jonny can unlock his mobile phone ? It's currently registered with Tesco and he's wanting to change to T-Mobile. His phone is a Samsung J700.

Cheers

local phone shops and stalls do it, if you come to hartlepool often a shop on murrey street does it for about £5 i think.

just picked this up might be worth a try
WARNING: ALL CONTACTS AND OTHER SETTINGS MAY BE LOST DURING THIS PROCESS!!!

Method:
Before you start, make sure the battery is charged and all security codes or PIN codes or watever are disabled so we dont have any code prompts interfering with this method.

1. Turn off the mobile phone.
2. Insert a "Non-accepted" SIM card (sim card that wont work) half way in so that when you turn on the phone, it still says "Insert SIM".
3. Turn on the phone.
4. Enter the following code and wait patiently for phone to reset:

*2767*2878#

5. Once reset has completed, the phone will still say "Insert SIM". This is where you need to push the sim card all the way in. You can use a paperclip or a tiny object to push it in if you have difficulty. IT IS IMPORTANT THAT THE PHONE REMAINS ON AT THIS STAGE (TRY NOT TO LET BATTERY FALL OUT) IF BATTERY FALLS OUT, DO NOT PANIC, JUST START FROM STEP 2 AGAIN.
6. Enter the following code and wait patiently for phone to reset:

*2767*3855#

7. After reset is completed, SIM should work and also the reception. Don't get excited, its not unlocked yet.
8. Now we want to make it permanent. First check what locks need to be deactivated with the following code:

*#7465625#

------------------------------------------------------------------------
a)
If Network Lock is "Active", put in the following code:

*7465625*638*00000000*00000000#
Message should be "Network Lock has been personalised" or similar.
Then:

#7465625*638*00000000#
Message should be "Network Lock deactivated" or similar.

------------------------------------------------------------------------
b)
If Subset Lock is "Active", put in the following code:

*7465625*782*00000000*00000000#
Message should be "Subset Lock has been personalised" or similar.
Then:

#7465625*782*00000000#
Message should be "Subset Lock deactivated" or similar.

------------------------------------------------------------------------
c)
If SP Lock is "Active", put in the following code:

*7465625*77*00000000*00000000#
Message should be "SP Lock has been personalised" or similar.
Then:

#7465625*77*00000000#
Message should be "SP Lock deactivated" or similar.

------------------------------------------------------------------------
d)
If CP Lock is "Active", put in the following code:

*7465625*27*00000000*00000000#
Message should be "CP Lock has been personalised" or similar.
Then:

#7465625*27*00000000#
Message should be "CP Lock deactivated" or similar.

------------------------------------------------------------------------
e)
If SIM Lock is "Active", put in the following code:

*7465625*746*00000000*00000000#
Message should be "SIM Lock has been personalised" or similar.
Then:

#7465625*746*00000000#
Message should be "SIM Lock deactivated" or similar.

1. Menu
2. *

I'm glad to have been of help.

Chrissie, you can get instructions off the Internet for pretty much any phone except Sony Ericson which are a bit of a bugger. Mr Bus's instructions sound good though.

ring tesco helpline, by law if you want your phone unlocking the providers now have to give you the unlock code.