Hi I'm having same trouble with my 5th gen nano ipod . My 11 old son loves the old tech and it was working absolutely fine . He has gone ro charge and nothing. There seems to be no power at all. Done all the above, checked charger , changed charger trued charging through different outlets also tried the lock button holding menu and middle button but nothing. It's annoying as I feel its fixable I have changed to restart a ipad 3 that was unueable so any help woukd be great and the pins in charging bit how woukd j know or rectify . Thanks in advance