How to Put an Apple iPod Classic into diagnostic mode « iPod & MP3 Players :: WonderHowTo
Q: How to enter diagnostic mode on 1G with 1.0.4 firmware? : r/ipod
Testing the iPod's secret diagnostic tools | ZDNET
Ipod classic doesn't turn on. It asks to connect to itunes to restore, but the computer doesnt recognize it. Also, diagnosis mode doesn't detect the HD. What can I do? : r/ipod
iPod classic 4 stuck on ok to disconnect on disk mode?! Read comment : r/ ipod