Restore a iPhone SE (first generation)

pack59 wrote:

I tried many times to restore my iPhone SE and I couldn't . In the MacBook Pro it gives an unknown error (9) 0609.0000 and in iTunes of Windows it gives me unknown error 9.

I want to restore it.

Please help me.

Follow all steps here If you see error 9, 4005, 4013, or 4014 when you restore your iPhone, iPad, or iPod touch - Apple Support

pack59 wrote:

I tried over and over in iTunes and in my Mac Book Pro with the latest update Mac OS Monterrey and in Windows . The result is always the same. Unknown error 9.

I tried the solution you gave. Always error 9

And what did Apple support say when you contacted them as outline in the link I posted?