access file system from outside

[spegase]

Hello,

Is it possible to access the bsd file system of iPhone from outside with iPhone turned off ?
i need to fix a mistake i made on the OS, since this the iPhone is rebooting every 5 sec (after apple splash screen)

Is it a way to plug the logic board to an external system ?

Thank you for helping me ;-)

[NetMage]

You can force recovery mode and then read or write the filesystem.

That is how some jailbreak methods work.