S5Late
Tethered iPod bootrom/DFU exploit.
The version by __gsch only supports iPod nano (7th generation), to support iPod nano (6th generation) offsets need to be updated.
https://github.com/m-gsch/S5Late
An alternative implementation by NyanSatan supports iPod nano (6th generation), iPod nano (7th generation) and iPod shuffle (4th generation).