Is your iPhone stuck on black screen
with spinning wheel? Or stuck on the black screen with Apple logo? First, you
can try to force restart your iPhone, or fix it with iTunes. If you restore with
iTunes but don’t have a backup with iTunes, the data on your iPhone will be lost.
If the data on your iPhone is very important and you don’t want to lose them,
you can try to restore your iPhone with Cocosenor iOS Repair Tuner.
You may get more details from this
article: https://www.cocosenor.com/articles/iphone-ipad/fixed-iphone-stuck-on-black-screen-with-spinning-wheel.html