XBOX HELP !!!

i am a noob and is new to xbox , please let me know  

Sorry, but there is no way to do that without hacking your hardware.

but can you tell me a way to flash the xbox 360 slim   a easy way

you need tools to do it, chk this site to learn more

You can "JTAG" your xbox 360, but there are a few things bad about it.

First, it's illegal to play copied CD's.
Second, if you JTAG or flash your Xbox, it automatically voids your warranty. If your Xbox crashes, you can send your Xbox back to Microsoft and they'll fix it for free (not warranty). If they see that you flashed or JTAGed your Xbox, they won't fix it for free.

But, there are alot of good things about JTAGing, being able to play burnt games is one of them. Look 'em up if you want more info.

Another negitive, if you are caught online with a hacked/modified xbox, they WILL BAN YOU