DFU will allow you to load a fully functional factory-fresh version of the operating system, and hopefully restore your iPhone to working ... and need to start again. 8. Keep holding Volume ...

There may come a point and time when you’ll need to restore your iPhone 16 ... A black screen could also indicate that your iPhone has been placed into DFU mode, although this is unlikely.

Using DFU mode is a serious step ... "iTunes has detected an iPad in recovery mode. You must restore this iPad before it can be used with iTunes." 5. Click "OK" on the message above.