I somehow messed up my logic board on my iPhone and now won't be recognised through USB on any computer.
I initially thought it was a software problem so I decided to erase all content and settings through the menu.
Now my phone won't boot up at all. It stays on the Apple logo (showing the [Only registered and activated users can see links. ])
Now, seeing as I can't restore or do anything, my only option is to get it replaced by Apple (I'm still under warranty). My only concern is that if they see that watermark from the jailbreak, will one of the Apple guys realise and refuse to replace the phone?