Why my logic board died?

Hi all,

Here is mine: a couple of weeks ago I found back my old 6th gen Ipod classic, I put aside few years ago because a dock connector pin was bent, the ipod was unable to sync. But it still could charge and play music.

I decided to revive it, and bought a new connector. Waiting for it I started to gently disassemble it. Then I succeed to unbent the pin.

But when I reassembled it, it did not power on, neither be recognized by my computer or charge.

I did not hear any HDD sound.

I checked the battery with a multimeter and it is ok.

Then it should be the logic board?!

How could it be?

Is there a way to be sure it is dead?

If some battery connector was damaged the computer would recognize it, wouldn’t it?

Thank you