Prepare your iPhone 18 Pro Max to ship
support.apple.com
support.apple.com
I suspect that basically nobody will ever follow these instructions, though.
If the phone won’t boot, wonder if shipping is potentially illegal, and Apple would mandate driving it to a store?
Speaking of using Chinese batteries in ROW phones: the cables are shorter on Chinese high capacity single cell batteries, so you can't exchange them in your European phone.
"tax fraud? a lot of people do it and it's just fine"