Connect xbox 360 to live without hard disk?

what will happen if i remove the hard disk of xbox 360 (jtageg hard disk) i will get banned ?

The Jtag modification is not in the hard drive it’s inside of the console. If you manage to take it on Live without the hard drive due to having a model with an internal 4GB of memory with an Xbox Live profile on it then yes you could still get console banned.