reflash boot2 to 3.1, usb/TTL

Good afternoon, I have to do to reflash your boot2 to 3.1, with an external USB / TTL interface, and come already sent tomorrow comes "USB to RS232 UART TTL compatible Arduino - PL2303" the 1st question:
SOFW that I have to use to send the boot2 3.1.0.16
2nd after installing this update can boot via ti nspire computer link eg OS 3.2.3.1233
I thank the collaboration
SOFW that I have to use to send the boot2 3.1.0.16
2nd after installing this update can boot via ti nspire computer link eg OS 3.2.3.1233
I thank the collaboration