Please help me unlock my Nokia 6230i

I have found free software to generate unlocking codes but am unsure what DCT I have to put in or what ASIC is :-(
It is locked to T Mobile and and the IMEI number is 357065008708978 can someone help please Thanks

 

What country was the mobile bought in?

 

From the UK

 

[bold]#pw+346266762444677+7#[/bold]

[bold]Remove sim first,power on the phone.
After the phone boots up, press #
Press * 3 times fast for (p)
Press * 4 times fast for (w)
Press * 2 times fast for (+)
Verify code before pressing the last #.
"Code error", don't try again!!
"Phone restrictions off", it's unlocked![/bold]
Click on banner for 24/7 unlocking

 

Code worked fine -
Thank you very much

 

Your welcome