WHAT DOES TROUBLE BACKING UP IPHONE TO COMPUTER MEAN?

Really need to do the change *Automatic –> Retain Originals* to determine which ones are HEIC to stop headache in guessing which JPG are transferrable without having showing up the *Unable to hook up with the device* concept.Photographs hangs with Searching for new pics and films, 4046 merchandise discovered so far plus the CANCEL button and that