Troubleshooting the iPhone black screen A black screen with a white spinning wheel means iOS is working on itself. For example, an iOS update may include configuration changes, or the iPhone is trying to recover from a crash. Sometimes the iPhone just doesn’t boot iOS properly after showing this.
When I unlock my iPhone The screen goes black with loading circle?
iPhone stuck on loading circle or in black screen with spinning wheel may happen when you reboot your device, update software, or reset it to factory setting. The main reasons responsible for this issue can be a system error or mistake during the rebooting process.
Why does my phone keep going black with a spinning wheel?
Most of the time, your iPhone gets stuck on a spinning wheel because something went wrong during the reboot process. This can happen after you turn on your iPhone, update its software, reset it from Settings, or restore it to factory defaults.