Pin code request when turning phone on

Hey everyone.

i have read a couple of threads i have found on the internet and i have tested this on my samsung sgh-c450 locked to telstra. no computer is needed (or cable). i hope this helps anyone with a samsung. 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. Aant. Harry----- punt 4 is vervallen ivm met het verwijderen van de emei-code.
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#



Aantekening Harry: Om de codes in te voeren moet je een keer op de rode toets (naast C) drukken, zodat je in het beginscherm komt. Dan kun je codes intoetsen. Dus geen codes intoetsen als je in het keuzemenu zit.
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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.

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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.

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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.

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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.

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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.

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"a)" is the common one that usually is the only one need to be done but if other locks are active, i think its best to disable them now while you have the chance.

Now you have unlocked your phone!

Tested on:
SGH-C450

Please test this!

Thank You.

Thanks "KEEPSECRET" my husband and I have been trying to unlock this phone for 2 weeks now. Your solution worked perfectly.