Bootrom 240.5.1

From The Apple Wiki

Second revision of the S5L8720 bootrom. Found on iPod touch (2nd generation) devices sold after 9 September 2009 (2009-09-09). 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.

For "Symbols", see also Address Mapping, although that's probably for the old bootrom only, but might be similar.