I'm attempting to either restore or update an iPhone 5 which won't boot. It's stuck on the apple logo boot screen. Hard reset does nothing.
I have tried normal restore mode via iTunes and DFU mode.
I'm signed into iTunes as the same apple ID as the phone.
I've authorized the mac for this apple ID in iTunes.
each time I try and either do update or restore I get the following error from iTunes:
iphone could not be restored (updated). TATSU declined to authorize this image on this device for this user.
Anything else I can try? it does not matter if I lose the data on the phone. Just needs to work again.
Also is there a way to view the boot sequence from my mac or the phone either via terminal or xcode or something so I can see where it's hanging in the boot sequence?