Second revision of the S5L8720 bootrom. Found on iPod touch (2nd generation) devices sold after September 9, 2009. Units with this bootrom can be differentiated from those with the first bootrom by their model number; the new ones' model number begins with "MC, PC, and FC"
It is not vulnerable to the 0x24000 Segment Overflow exploit.
It is vulnerable to the usb_control_msg(0xA1, 1) Exploit.