How do you unlock a mobile phone?

there got to be a PUK-number in the phone's or sim carte's packaging...

did you just forget the password??

If you have just forgotten yor password you have to contact your service provider to get the master reset code.  If you want to unloc your phone to switch another network then you can get the unlock code by calling the network service provider its 5-20 days or you can get the unlock code by the third party its take 2-12 hour this website will help you a lot for unlocking
http://www.unlock-zone.com/

Check out Cell Phones Directory for websites related to unlocking mobile phones .

Recently i unlocked the mobile by getting unlock code in this site http://www.superunlockcodes.com/unlock-your-phone/rs12wp2/   & i unlocked the mobile & got satisfactory result..

It worked out great ...

I have unlocked two phones to date. The first one was a T-Mobile phone that I bought on eBay. I went to the T-Mobile store and they were clueless so I called Tech Support for T-Mobile. Tech support had me take out the battery and read them a long  number on the phone under the battery. They then told me that they had to email the information to me. I don't remember why they said they had to email the info, but it arrived in a couple of days with step by step instructions and worked fine.

The second phone I bought to use on T-Mobile, but it was an AT&T phone. I was actually able to get AT&T's Tech support phone number from the T-Mobile store personnel. I called AT&T Tech support and they again emailed me detailed instructions on how to unlock the phone. It was easy and free. I hope this helps.

What brand and model friend?
We offer unlocking all mobile phone brands and carriers.
Here's what the price and delivery time for its release:

http://www.mobile-unlock.net

Go to BlackBerryMEP.COM and buy an unlock code, they will send unlock code along with unlocking instructions in 5 minutes .

BlackBerryMEP.COM is the best for unlocking BlackBerry handsets .

have you setup a lock passward for you mobile phone? if not,contatc with your mobile phone provider or mobile network provider.I think it has something to do with the PUK no. The provider will give you a number such as "*...#".

Onwinmobile

www.onwinmobile.com