i want to unlock and old phone its a samsung any help please?

[joeblaze]

its not a smart phone. its a slide phone lol. this friend has no interest in the internet or any interest in phones but he has misplaced his for the last few days ( you would need to pay someone to steal that ). there are 2 only samsung phones. i know one is a u600

 

[joeblaze]

i want to unlock it to use his network.

 

[joeblaze]

can anyoone help with how to unlock this shit for free am not paying for some other persons unlock