Flashing logo on an iPhone and iTunes AMRestoreErrorDomain error 9
When the device is plugged into a power outlet suddenly the Apple logo appears for a few seconds, then disappears, leaving a blank screen. The blank screen stays up for just a couple of seconds and then the Apple logo appears again flashing incessantly, but never actually starting up the device. It is just on an Apple logo loop.
Then I tried with DFU mode iTunes restore process no luck it says iTunes error 9 I clearly explained that issue in the below link
https://discussions.apple.com/thread/250220630
I really don't know how to fix this, Can anyone please help me on this?
Thanks.
iPhone 6s, iOS 12