how i use i massage

Not sure why you linked to a thread that is almost 4 years old. If you have access to the phone but forgot the restriction passcode, then you will need to restore the phone as new but do not reload a backup as the code is included in the backup. Once restored, you can sync your music and apps as needed.

I won't to use I massage

Read here;

http://support.apple.com/kb/HT5538

I bought a

phone from a friend.Your friends forget restriction code

What should I do.

How it's I'm wont to use I masaa

See the link posted from 2013.

ok