yes. nokia unlocking codes are free, since the algo was released. in regards to motorola... no calc has been released for free.. ;-(

but u can d/l some old motorola unlockers via cable and study the software and find if there is a valid algo in it... and could try to convert it to the new motorola mobile to work...

btw. most motorola are unlock via cable...

btw, what do u mean by DIY?

br