Stuck on Connect to iTunes boot logo and can't connect to iTunes
iOS 9.0.2 is no longer being signed, so you are unable to restore to it.

You will need to restore to the latest version of iOS using DFU restore (connect to computer, hold power and home until the screen turns off and back on with the Apple logo, then let go of power but keep holding home).

Also, you should never use Update when a device is jailbroken regardless of iOS version.