I have an IPhone 5s that I am having issues with and want to restore it but when I connect it to my pc, ITools, IFunbox, and file explorer all show the phone as being connected, but ITunes will not connect to my phone, launch when I connect my phone, or show my phone in the corner. I am running IOS 9.3.3 on my phone (which I cannot update through my phone) and ITunes 12.4.3. Thanks for any suggestions.